What is the length of each side of this equilateral triangle? A 2.5 C 15 B5 D 20 7x - 15. one side is 4x, second side is 3x+5, third side is 7x-15

Answers

Answer 1

We have the following equilateral triangle:

Since all its sides have to be equal, we have the following equations:

\(\begin{gathered} 4x=3x+5 \\ 4x=7x─15 \\ 7x─15=3x+5 \end{gathered}\)

Solving for x each one we get:

\(\begin{gathered} \text{First equation:} \\ 4x=3x+5 \\ \Rightarrow4x─3x=5 \\ x=5 \\ \text{Second equation:} \\ 4x=7x─15 \\ \Rightarrow15=7x─4x=3x \\ \Rightarrow x=\frac{15}{3}=5 \\ x=5 \\ \text{Third equation:} \\ 7x─15=3x+5 \\ \Rightarrow7x─3x=5+15=20 \\ \Rightarrow4x=20 \\ \Rightarrow x=\frac{20}{4}=5 \\ x=5 \end{gathered}\)

we can be sure that x=5. Now the sides are:

\(\begin{gathered} x=5 \\ 4x=4(5)=20 \\ 7x─15=7(5)─15=35─15=20 \\ 3x+5=3(5)+5=15+5=20 \end{gathered}\)

therefore, the sides of the equilateral triangle measure 20 units

What Is The Length Of Each Side Of This Equilateral Triangle? A 2.5 C 15 B5 D 20 7x - 15. One Side Is

Related Questions

Brittany asked her classmates: How much time, in minutes, do you spend reading each day? Here are the results: 10, 20, 20, 20, 30, 30, 30, 30, 30, 40, 40, 40, 60, 60, 60 Display the data in a line plot, a histogram, and a box plot. Next to each graph, write down something you notice about the data. Upload your completed plots here.

Answers

The line plot, histogram, and box plot provide different visual representations of the reading time data. By analyzing these plots, we can observe the distribution and characteristics of the data, such as central tendency, spread, and outliers.

Line Plot:

A line plot displays data points on a number line, representing the frequency or count of each value.

In this case, the line plot will show the minutes spent reading on the x-axis and the count of students on the y-axis.

For the given data, the line plot will show 10, 20, 30, 40, and 60 on the x-axis, with the corresponding counts displayed above each value.

Histogram:

A histogram displays data distribution by dividing the range of values into intervals or bins and representing the frequency of values falling into each bin.

The histogram will have the minutes spent reading on the x-axis and the count or frequency of students on the y-axis.

The intervals will be 10-19, 20-29, 30-39, 40-49, and 50-59, with the last interval being 60+.

The height of each bar in the histogram will represent the number of students falling into each interval.

Box Plot:

A box plot (also known as a box-and-whisker plot) provides a visual representation of the distribution of data, including measures of central tendency and variability.

The box plot will show a horizontal line inside a box, with whiskers extending from the box, and possibly individual data points beyond the whiskers.

The box will represent the interquartile range (IQR), showing the middle 50% of the data.

The line within the box will represent the median value.

The whiskers will indicate the minimum and maximum values, excluding outliers.

By analyzing these plots, you can observe the central tendency, spread, and distribution of the reading time data. For example, you can identify any outliers, notice the most common reading durations, and observe any patterns or trends within the dataset.

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1 Out of 30 students surveyed, 17 have a dog. Based on these results
predict how many of the 300 students in the school have a dog

Answers

Answer:

170

Step-by-step explanation:

17 dogs per 30 students or 17/30

Same ratio for 300 students:

300*17/30 = 170

So 170 students have a dog

Show that the function f(x)=sin3x + cos5x is periodic and it’s period.

Answers

The period of \(f(x)\) is \(\boxed{2\pi}\).

Recall that \(\sin(x)\) and \(\cos(x)\) both have periods of \(2\pi\). This means

\(\sin(x + 2\pi) = \sin(x)\)

\(\cos(x + 2\pi) = \cos(x)\)

Replacing \(x\) with \(3x\), we have

\(\sin(3x + 2\pi) = \sin\left(3 \left(x + \dfrac{2\pi}3\right)\right) = \sin(3x)\)

In other words, if we change \(x\) by some multiple of \(\frac{2\pi}3\), we end up with the same output. So \(\sin(3x)\) has period \(\frac{2\pi}3\).

Similarly, \(\cos(5x)\) has a period of \(\frac{2\pi}5\),

\(\cos(5x + 2\pi) = \cos\left(5 \left(x + \dfrac{2\pi}5\right)\right) = \cos(5x)\)

We want to find the period \(p\) of \(f(x)\), such that

\(f(x + p) = f(x)\)

\( \implies \sin(3x + p) + \cos(5x + p) = \sin(3x) + \cos(5x)\)

On the left side, we have

\(\sin(3x + p) = \sin(3x + 2\pi + p - 2\pi) \\\\ ~~~~~~~~ = \sin(3x+2\pi) \cos(p-2\pi) + \cos(3x+2\pi) \sin(p-2\pi) \\\\ ~~~~~~~~ = \sin(3x) \cos(p-2\pi) + \cos(3x) \sin(p - 2\pi)\)

and

\(\cos(5x + p) = \cos(5x + 2\pi + p - 2\pi) \\\\ ~~~~~~~~ = \cos(5x+2\pi) \cos(p-2\pi) - \sin(5x+2\pi) \sin(p-2\pi) \\\\ ~~~~~~~~ = \cos(5x) \cos(p-2\pi) - \sin(5x) \sin(p-2\pi)\)

So, in terms of its period, we have

\(f(x) = \sin(3x) \cos(p - 2\pi) + \cos(3x) \sin(p - 2\pi) \\\\ ~~~~~~~~ ~~~~+ \cos(5x) \cos(p - 2\pi) - \sin(5x) \sin(p - 2\pi)\)

and we need to find the smallest positive \(p\) such that

\(\begin{cases} \cos(p - 2\pi) = 1 \\ \sin(p - 2\pi) = 0 \end{cases}\)

which points to \(p=2\pi\), since

\(\cos(2\pi-2\pi) = \cos(0) = 1\)

\(\sin(2\pi - 2\pi) = \sin(0) = 0\)

Question 1 of 5 Which number line shows the solutions to x < 5? OA. -3 -6 -4 -2 0 2 4 6 8 OB. O C. -8 -6 -4 -2 0 2 4 6 8 -8-6-4-2 0 2 4 6 8 OD. 864 2 0 2 4 6 8​

Answers

The number line that shows the solutions of x < 5

B. O

What is number line?

A number line is a visual representation of the real numbers, ordered from left to right, with zero in the middle. It is typically a straight line that extends infinitely in both directions, with evenly spaced markings that represent specific points along the line.

The solution of x < 5 should consist of number less than 5

The inequality used is less than and hence should have values saying less than

Other options has numbers more than 5 such as 6 except option B

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cos s=-2/5 and sin t=4/5, s and t are in quadrant II
find cos(s+t) and cos(s-t)

No spam!​

Answers

Your answer is attached.

Hope it helps you!

cos s=-2/5 and sin t=4/5, s and t are in quadrant IIfind cos(s+t) and cos(s-t)No spam!

Please do this carefully as i can't afford to get this wrong

Please do this carefully as i can't afford to get this wrong

Answers

The solutions to x = 4 are: (4, 1). The other ordered pairs are not solutions to the equation.

What is Set theory ?

Set theory is a branch of mathematical logic that deals with the study of sets, which are collections of objects. The objects in a set are called elements or members of the set.

The basic idea of set theory is to study the properties of sets and their relationships with other sets. Set theory provides a foundation for most of modern mathematics, as it provides a way to define mathematical objects in terms of sets and to reason about them using set-theoretic operations.

In set theory, the most basic concepts are sets, elements, and subsets. A set is a collection of distinct objects, which can be anything from numbers to colors to people. An element is a member of a set, and a subset is a set whose elements are all contained in another set.

To determine whether each ordered pair is a solution to x = 4, we need to check whether the value of x in each pair is equal to 4.

For the pair (4, 1), the value of x is 4, so it is a solution to x = 4.For the pair (-6, 0), the value of x is not 4, so it is not a solution to x = 4.For the pair (-3, 4), the value of x is not 4, so it is not a solution to x = 4.For the pair (5, -7), the value of x is not 4, so it is not a solution to x = 4.

Therefore, the solutions to x = 4 are: (4, 1). The other ordered pairs are not solutions to the equation.

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Find the unit rate.
1. A sloth moves 10 feet in 2 hours. It moves
2. The car travels 165 miles in 3 hours. It travels
feet per hour.
3. There are 48 bottles of water in 4 cases. There are
4. Juice cost $3.60 for 12 ounces. It costs
miles per hour.
per ounce.
bottles per case.

Answers

Step-by-step explanation:

1.

10 ft in 2 hours = 10/2 / 1 hour = 5 ft/h

2.

165 miles in 3 hours = 165/3 / 1 hour = 55 m/h or mph

3.

48 bottles in 4 cases = 48/4 / 1 case = 12 bottles per case

4.

$3.60 for 12 oz = 3.6/12 / 1 oz = $0.30 per ounce

Each side length of a triangle is 4 cm. What type of triangle is it?
☐ right
□acute
Equilateral
Isosceles

Answers

Answer: Equilateral

Step-by-step explanation:

It's equilateral because it says that each side of the triangle is 4cm. In simple words, all the sides of triangle are equal. Such a triangle is called an equilateral triangle.

Hope you understood.

8. There are three exams in a marking period. A student received grades of 75 and 81 on the first two exams. What grade must the student earn on the last exam to get an average of no less than 80 for the making period?

Answers

80*3= 240
Meaning all 3 averages must add up to 240, in order for it to be 80 or more.

75+81= 156
240-156= 84

The student must earn an 84

Answer:

84 and more

Step-by-step explanation:

84+81+75

=240

240/3

=80

After training Naruto went to a ramen shop for dinner. Since Naruto eats ramen for lunch and dinner daily, the shopkeeper gives him a 33.33% discount. If ramen costs 45 cents, how much does Naruto spend in 15 days?

Points given: 20

Answers

To calculate how much Naruto spends on ramen in 15 days, we need to determine the total cost of ramen per day and then multiply it by 15.

Since Naruto receives a 33.33% discount, he pays 100% - 33.33% = 66.67% of the original price.

66.67% of 45 cents is (66.67/100) * 45 = 30 cents.

So, Naruto spends 30 cents on ramen per day.

To find out how much he spends in 15 days, we multiply the daily cost by the number of days:

30 cents * 15 = 450 cents.

Therefore, Naruto spends 450 cents, which is equivalent to $4.50, on ramen in 15 days.

some please help asap !!

some please help asap !!

Answers

Answer:

The answer should be 0.66

The answer is 0.66
-----------------------
some please help asap !!

A fence with 2 gates in it surrounds a lion enclosure.

Each gate is 4 m wide.
an image

What is the length of the fence around the enclosure not including the gates?

Answers

The length of the fence around the enclosure not including the gates is:2l + 2w + 8 m

To find the length of the fence around the enclosure, we need to first find the perimeter of the rectangle and then subtract the combined length of the two gates from it.

Let's assume the length of the rectangle is 'l' and the width is 'w'.

From the given data, we know that each gate is 4 m wide.

Therefore, the width of the rectangle is:

Width = w + (4 m + 4 m) = w + 8 m

The perimeter of the rectangle is:

P = 2l + 2(w + 8 m) = 2l + 2w + 16 m

Now, we need to subtract the combined length of the two gates from the perimeter:

P - 2 × 4 m = 2l + 2w + 16 m - 8 m = 2l + 2w + 8 m

So, the length of the fence around the enclosure not including the gates is:2l + 2w + 8 m

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Which number belongs to the solution set of the equation below?
X-18 = 17

Answers

Answer:

a. 35

Step-by-step explanation:

x - 18 = 17

x = 35

For this question the answer is x = 35.

A library contains 60000 books. 14,000 are on the subject of business and 22000 are on health care and 12000 on psychology and Law. What percentage of the librarys is on the if the computing books are two-thirds of the reminder

Answers

Answer: The percentage of computing books is 13.33%.

Step-by-step explanation:

The library consist of books on different subjects:

S = {Business, Healthcare, Computing, Psychology, Law,...}

There are a total of N = 60,000 books in the library.

Business (B) = 14,000

Healthcare (H) = 22,000

Psychology and Law (P&L) = 12,000

Remaining = N - B - H - P&L

                  = 60000 - 14000 - 22000 - 12000

                  = 12000

It is provided that computing books make up two thirds of the remainder

Compute the number of computing books as follows:

C = 12000 × (2/3) = 8000

Compute the percentage of computing books as follows:

\(C\)%=\(\frac{8000}{60000}*100=13.33\)\(%\)%

Thus, the percentage of computing books is 13.33%.

b How much is 10% of 10 liters of milk?
C.How long is 10% of a 24-hour day?
d.How can you find 10% of any number?

Answers

Answer:

b. 1 liters of milk

c. 2.4 hours

d. (any number) /10% times 100

Step-by-step explanation:

because of the gravity of the earth

bobo Ampt

Max pays a flat rate of $85 for his cell phone. He is also charged $0.15 for every text that he sends. His cell phone bill can be no more than the amount he has budgeted for it each month. If x represents the number of texts and y represents his budgeted amount, which inequality represents Max's cell phone budget each month? (3 points)
a $0.15x + $85 ≥ y
b $0.15x + $85 ≤ y
c $0.15x - $85 ≥ y
d $0.15x - $85 ≤ y​

Answers

answer : b, .15x + 85 ≤ y

Simplify the expression StartFraction a b Superscript 3 Baseline over a Superscript 4 Baseline b EndFraction plus left-parenthesis c Superscript 2 Baseline right-parenthesis Superscript 3 Baseline

Answers

The simplification of the expression ab³/a⁴b  +  (c²)³ is determined as b²/a³  +  c⁶.

What is the simplification of the expression?

The given expression is simplified as follows;

The given expression is written as;

ab³/a⁴b  +  (c²)³

To simplify the expression given above, we will divide the fraction with the common factor as follows;

From the numerator; ab³, we will factor out "ab"

From denominator; a⁴b, we will factor out "ab"

The resulting expression becomes;

ab³/a⁴b  +  (c²)³

= b²/a³  +  c⁶

Note: for the power of c, we simplify by multiplying 2 and 3 = 6

Thus, the simplification of the expression ab³/a⁴b  +  (c²)³ is determined as b²/a³  +  c⁶.

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given the function f(x)=logbase2(X), find the y-intercept of g(x) = f(x+4)+8

Answers

The y-intercept of f(x + 4) + 8 is given as follows:

10.

What is a translation?

A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.

The four translation rules for functions are defined as follows:

Translation left a units: f(x + a).Translation right a units: f(x - a).Translation up a units: f(x) + a.Translation down a units: f(x) - a.

The parent function for this problem is given as follows:

\(f(x) = \log_2{x}\)

The translated function is then given as follows:

\(g(x) = \log_2{x + 4} + 8\)

The y-intercept of the function is the numeric value at x = 0, hence:

\(g(0) = \log_2{0 + 4} + 8\)

g(0) = 2 + 8 = 10.

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please help me asap​

please help me asap

Answers

Answer:

11. 6

12. The last option, A=1/4, B=7/16, C=5/8, D=3/4

Step-by-step explanation:

11. look at the denominators, and what do you see? I see that 11 is 88 divided by 8. So, let's divide the numerator by 8 as well! 48/8=6

12. 1/4 is half of 1/2, so it would be between 0 and 1/2, or A

     Same thing with 3/4 but this time in the middle of 1/2 and 1, or D

     5/8 is a little over 4/8, or 1/2, so C

     The last one left is 7/16, B

I NEEED TO GET THIS RIGHT PLS ANSWERRRRR. ILL GIVE YOY ALOT OF POINTS AND A BRAINLYIST!!!

I NEEED TO GET THIS RIGHT PLS ANSWERRRRR. ILL GIVE YOY ALOT OF POINTS AND A BRAINLYIST!!!

Answers

Answer:0.5n

Step-by-step explanation: its to long to explain but correct :)

Answer:

0.5n

Step-by-step explanation:

Solve for X: 57 Degrees 79 Degrees 4x+4

Solve for X: 57 Degrees 79 Degrees 4x+4

Answers

Answer:

x equals to 10

Step-by-step explanation:

every triangle is 180 degrees, so 180-(79+57)= 44.

4x+4 (reverse it), 44-4= 40, 40÷4= 10. so x=10.

I hope you understand!!!

Graph y + 14 = -7x help me pls

Answers

Answer:

  see attached graph

Step-by-step explanation:

There are a couple of ways you can look at this.

Point-Slope Form

The point-slope form of the equation for a line is ...

  y -k = m(x -h) . . . . . . . line with slope m through point (h, k)

Comparing this to the given equation, we see that ...

  k = -14, m = -7, h = 0

That is, the equation describes a line with slope -7 through point (0, -14).

The slope is the ratio of rise to run. Usually, "run" is considered to be positive in the +x direction (to the right). Here, you run out of room on most graphs if you look for a point that is 7 units down and 1 unit right of the y-intercept at (0, -14). (That point is (1, -21).) So, it is more convenient to start at the y-intercept (0, -14) and go 1 unit left and 7 units up to find another point on the line. That point is (-1, -7). With two points plotted, you can draw the graph.

__

Slope-Intercept form

We discovered above that the y-intercept is -14. You can get there also by putting the equation in slope-intercept form:

  y = mx +b . . . . . . line with slope m and y-intercept (0, b)

Adding -14 to both sides of the given equation gives you this form.

  y = -7x -14

The method of plotting is substantially identical to that described above.

__

Standard form

The standard form of the equation is ...

  ax +by = c

where a > 0, and a, b, c are mutually prime integers.

Adding 7x-14 to both sides of the equation puts it into standard form:

  7x +y = -14

The x- and y-intercepts are found by setting the other variable to zero and solving for the one that is left. Here, that means the x-intercept is ...

  c/a = -14/7 = -2

and the y-intercept is ...

  c/b = -14/1 = -14

These x- and y-intercepts are easily plotted on the x- and y-axes. The graph will be the line drawn through them. The attached graph shows the line and the intercepts.

Graph y + 14 = -7x help me pls

50 Points! Multiple choice algebra question. Photo attached. Thank you!

50 Points! Multiple choice algebra question. Photo attached. Thank you!

Answers

The solution of the inequality, log₂ 2m > log₂ (m + 5) is {m | m > 5 / 2}.

How to solve logarithm inequality?

An inequality is an expression that have <, >, ≤ and ≥ . Therefore, let's solve the logarithmic inequality for the variable m.

Hence,

log₂ 2m > log₂ (m + 5)

Therefore, let's divide both sides by log₂.

Hence,

2m > m + 5

subtract m from both sides of the inequality

2m > m + 5

2m - m > m - m + 5

2m > 5

divide both sides by 2

2m / 2 > 5 / 2

Therefore,

m > 5 / 2

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If a wheelchair access ramp has to have an angle of elevation no more than 4.8 degrees and it has to rise 18 inches above the ground, how long must the ramp be?

Answers

The wheelchair access ramp must be 216.09 inches long.

To find the length of the wheelchair access ramp, we can use trigonometry.

The tangent function relates the angle of elevation to the ratio of the opposite side (height) to the adjacent side (length of the ramp).

Let's denote the length of the ramp as "x".

The height of the ramp is given as 18 inches.

Using the tangent function:

tan(angle of elevation) = height/length of the ramp

tan(4.8 degrees) = 18/x

To solve for x, we can rearrange the equation:

x = 18 / tan(4.8 degrees)

Using a calculator to evaluate the tangent of 4.8 degrees:

x = 18 / 0.08331

x= 216.09

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14A construction crew has just builtnew road. It took them 6 weeks to build 7.68 kilometers of road. At what rate did they build the road?I kilometers per week?

Answers

Given,

The construction crew took 6 weeks to build 7.68 kilometers of road.

Rate of built the roads,

\(\frac{7.68}{6}=1.28\)

Therefore, the rate of building the roads is 1.28 per week.

Find the value of x.
78°
OA7
OB. 8
O C. 5
O D. 1
(12x+18)

Find the value of x.78OA7OB. 8O C. 5O D. 1(12x+18)

Answers

Step-by-step explanation:

you can find the answer by vertical opposite angle

if the value of x is computed and it's equal to 78 you will find the answer

78=(12x+18)^

78=(12×5+18)

78=(60+18)

78=78 the problem is solved

may u get branliest please please

Hi I need help with this question please and thank you

Hi I need help with this question please and thank you

Answers

Given the inequality:

-9 < 4x + 3 < 27

we are to solve for x

recall,

if a

−12 + −9 = ? I need an answer!

Answers

Answer: -21

Step-by-step explanation:

Because both numbers are negatives then the result is also a negative. You are ultimately adding negatives

-12+-9 = -21

The Empire State Building is 1,250 feet tall. Maria wants to make a model that has a scale of 1/4 foot = 50 feet. How to tall will her model be?​

Answers

Answer:

25 ft tall

Step-by-step explanation:

divide 1250 by 50

i think its right lol.

Enya is writing a 500 word essay. So far, she has written 150 words. What percent of her essay has she written so far?

Answers

Answer:

30%

Step-by-step explanation:

150/500 = 0.3

0.3x 100= 30%

Answer:

333.3%

Step-by-step explanation:

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a couple has two offspring; one child has an autosomal recessive disease trait and one is normal. what most likely conclusions can the nurse make about the parents? group of answer choices only one parent must have the autosomal recessive disease. both parents must always have the autosomal recessive disease. one parent is a carrier for the autosomal recessive gene and the other parent is normal. both parents could be carriers. These are the pictures for my last question please help me, i have no idea what to do2. Create a memory location that will store the current year and not change while the program runs. 3. Create a memory location that will store the number of items being purchased. 4. Display the the Experiment 2: in the decomposition reaction, how many grams of product were in the crucible after heating? remember to subtract the mass of the crucible. choose the closest answer. what is the connection between mitosis and cancer What is the area of triangle ABC? Do stories have stage directions Figure ABCD is rotated by 180 degrees about the origin in the counterclockwise direction to obtain figure A'B'C'D': Which statement best compares the lengths of the sides of the two figures? (5 points) You need to control the number of people who can be in an oyster bar at the same time. Groups of people can always leave the bar, but a group cannot enter the bar if they would make the number of people in the bar exceed the maximum of 100 occupants. Write a program that reads the sizes of the groups that arrive or depart. Use negative numbers for departures. After each input, display the current number of occupants. As soon as the bar holds the maximum number of people, report that the bar is full and exit the program. WILL GIVE BRAINLIEST FOR RIGHT ANSWER!!Based on the context, "world-wide reduction of armaments" represents (4 points) afreedom from fear bphysical aggression cmilitary control dnational pride ASAP! ill give points if someone can anyone help me In an enterprise resource planning (ERP) system, the _____ component provides information on production costs and pricing. While at soccer practice, Korey ran around the track at 10 meters per second. He had a constant speed and did not change directions. What is Korey's acceleration? Smith Bank has a reserve requirement of 25%. If your significant other deposits money into their bank account at Smith Bank, which results in an increase in excess reserves of $80 then what is the maximum possible change in money supply from this initial deposit? Round your answer to two decimal places. most of the body is made up of a. vitamins and mineralsb. proteinc. carbsd. watere. fat Write a brief description to each event. Then, explain how each event influenced the development of America government What is sales tax Short answer? Graph the inequalities x>2 and x < 2 on the same number line. What value, if any, is not a solution ofeither inequality? Explain your thinking. The passage of the Fifteenth Amendment in 1869 prompted the formation of two major suffrage organizations becauseit marked a great success for the abolition movement, which many feminists opposed.it granted formerly enslaved men the right to vote, while women were still denied this right.it put a halt to Carrie Chapman Catts Winning Plan and set back the cause of womens suffrage.it granted women the right to vote in Western states but not in Eastern states. Round 25.395 to the nearest hundredths.