Answer:
62
Step-by-step explanation:
because 7-69 = 62
Answer:
Jiri is 62.
Step-by-step explanation:
7 + 62 = 69. Sorry if this isn't correct I'm bad at math honestly.
1. A firefighter is rescuing a cat in a tree. If the branch that the cat is on is 15 feet above the ground and the ladder makes an angle of 63 with the ground, how long is the ladder?
Answer:
13.24 ft
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. You have:
Sinα=opposite/hypotenuse
α=62°
opposite=x
hypotenuse=15 ft
2. When you substitute the values into Sinα=opposite/hypotenuse, you obtain:
Sinα=opposite/hypotenuse
Sin(62°)=x/15
3. You must clear "x", as below:
x=(15)(Sin(62°))
x=13.24 ft
The answer is. 13.24 ft
How to convert centimeters into millimeters?
Answer: Multiply the centimeters number by 10.
Step-by-step explanation: There are 10 millimeters in every centimeter.
Please help don’t ignore !!!!!!
Answer:
The answer is 6x because 2x Times 3x equals 6x to the second power
Step-by-step explanation:
Answer:
area= 6x² + 3x
Step-by-step explanation:
Multiply the two sides.
Please help me solve this quickly! Will give brainliest!
Answer:
y = 5\(\sqrt{6}\)
Step-by-step explanation:
JLT forms the special 90-60-30 right triangle and the side length for the given measure follows as 2a-a\(\sqrt{3}\)-a
since the side length that sees 90 degrees is 10 then x = 5
according to Euclidian theorem :
y^2 = LK*KI (LK = 15 -x, KI = 15)
y^2 = 10*15
y^2 = 150 find the root for both sides
y = 5\(\sqrt{6}\)
Please help will mark Brainlist
Refer to the figure at the right. Write a proof
that shows AB || ED.
Answer:
We can see the two triangles ABC and EDC are similar and their sides are proportional.
4 to 8, 6 to 12, 5 to 10
You could say,
1. ABC ~ EDC -- SSS criterion
2. ∠A = ∠E -- CPCTC
3. AB || ED -- Alternate Interior Angles Converse
Mr. Baugh is a car salesman. He is paid a salary of $1800 per month plus $600 for each car that he sells. Find the slope and the y-intercept then write a linear equation that describes the relationship between the number of cars sold x and the monthly salary y. If Mr. Baugh sells 5 cars, how much money will he make for the month?
Answer:
he will make $4800 for that month
Step-by-step explanation:
A bike is on sale for 260 which is 35%off it’s original price what’s the original price
the orginal price is really "x", which oddly enough is the 100%, but we also know that 260 is 35% off that, so 260 is really 100% - 35% = 65% of the original price, so
\(\begin{array}{ccll} amount&\%\\ \cline{1-2} x & 100\\ 260& 65 \end{array} \implies \cfrac{x}{260}~~=~~\cfrac{100}{65} \\\\\\ \cfrac{ x }{ 260 } ~~=~~ \cfrac{ 20 }{ 13 }\implies 13x=5200\implies x=\cfrac{5200}{13}\implies x=400\)
Idk wby it sets it up so weird in word form so imma just put this here
Answer:
141/2, 279/4
Step-by-step explanation:
Answer: wow ur right like ummm
Step-by-step explanation: wby lol
HELP WILL MARK BRAINLIEST!!!!!!
Answer:
1. NP
2. P
3. P
4. NP
Step-by-step explanation:
if this helped, Mark as brainliest, thank you
Answer:
Not polynomial for the first one.
second is polynomial.
third is polynomial.
and fourth is not polynomial.
Step-by-step explanation:
oh wait- yeah the other person is right too LOL
Write an equation in standard form of the line that contains the point (-2,4) and is parallel to (has the same slope as) the line y = 8x-3.
Answer:
The equation of the line in standard form is -8x + y = 20
Step-by-step explanation:
The standard form of the linear equation is Ax + By = C, where
A, B, and C are integersThe slope-intercept form of the linear equation is y = m x + b, where
m is the slopeb is the y-interceptParallel lines have equal slopes
∵ The line is parallel to the line y = 8x - 2
→ Compare it with the slope-intercept form above
∴ m = 8
∵ The parallel lines have the same slopes
∴ The slope of the line = 8
→ Substitute it in the slope-intercept form above
∴ y = 8x + b
∵ The line passes through the point (-2, 4)
∴ x = -2 and y = 4
→ Substitute x by -2 and y by 4 in the equation to find b
∵ 4 = 8(-2) + b
∴ 4 = -16 + b
→ Add 16 to both sides
∴ 4 + 16 = -16 + 16 + b
∴ 20 = b
→ Substitute the value of b in the equation above
∴ y = 8x + 20
→ Subtract both sides by 8x
∵ y - 8x = 8x - 8x + 20
∴ y - 8x = 20
→ Switch x and y
∴ -8x + y = 20
∴ The equation of the line in standard form is -8x + y = 20
How many cubic inches are needed to fill this
rectangular prism?
10 in.
9 in.
5 in.
A plane takes off from a runway and begins its climb. The plane takes off at a constant acceleration of 20 LaTeX: m /s^{2} . Once it reaches altitude it moves at 246 m/s, and maintains that speed. If it continues at this speed for 93 min, how far would the plane have traveled from the time took off?
Answer:
The plane have traveled 1512.9 m from the time took off
Step-by-step explanation:
Acceleration \(a = 20m/s^2\)
Initial speed = u = 0
Final speed = v = 246 m/s
Time = t = 93
We are supposed to find how far would the plane have traveled from the time took off
We will use equation of motion
\(v^2=u^2+2as\\(246)^2=2\times 20 \times s\\\frac{(246)^2}{2 \times 20}=s\\1512.9 m=s\)
Hence The plane have traveled 1512.9 m from the time took off
what does the central limit theorem state? what happens to the standard error as sample size increases/decreases?
The central limit theorem (CLT) could be a principal concept in insights that states that, beneath certain conditions, the test cruel of a huge number of autonomous and indistinguishably disseminated (i.i.d.) arbitrary factors will be roughly regularly conveyed, in any case of the fundamental dissemination of the factors. Particularly, the CLT states that:
The test cruel of a huge number of i.i.d. irregular factors will be roughly ordinarily conveyed, in any case of the fundamental dispersion of the factors.
The cruelty of the test implies will break even with the populace cruel.
The standard deviation of the test implies (moreover known as the standard mistake) will rise to the populace standard deviation isolated by the square root of the test measure.
In other words, the central restrain hypothesis states that the dispersion of the test implies will be roughly typical, with a cruel break even with to the populace cruel and a standard deviation (standard blunder) that diminishes as the test estimate increments.
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What Two pairs of fractions are shown. Which symbol correctly compares 2/3 2/4 each pair of fractions?
Answer:
Greater than symbol.
2/3 > 2/4
Step-by-step explanation:
We have two fractions, 2/3 and 2/4
We then go back to the inequality part of mathematics where we have symbols such as greater than (>), less than (<), and equal to (=).
Of the three inequality symbols, we look and pick at the one that represents best, the fractions we were given.
2/3 and 2/4
With 2/3 being greater than 2/4.
2/3 = 0.67
2/4 = 0.50
Succinctly, 2/3 > 2/4.
SVART We wish to compute 22+2 de 23 +3.2 - 92 - 27 0) We begin by factoring the denominator of the rational function. We get 23 +32 - 92 - 27- (2-a) (0 - 1) for ab. What area and b? FORMATTING: Make sure corresponds to the factor of the denominator that repeat we a b (1) Next, we express the fraction in the form 2+2 A B C + 23 +3.2 - 9. - 27 Give the exact values of A, B and C FORMATTING: Make sure A, B and C correspond to the appropriate denominators, as given in the above setup. A= 25/35 491 B= - 11/6 11/38 () Finally, we use this partial traction decomposition to compute the integral. Give its approximate value with 3 decimal places 2+2 dar -0.189 +3+32 - 9x - 27 La stion Mer
Given that 22+2 de 23+3.2-92-27We begin by factoring the denominator of the rational function: 23+32-92-27-(2-a)(0-1) for ab.
We can write the given function as:2 + 2/(x - 2) + 3/(x + 3) - 9/(x - 9) - 27/(x + 27)To find the values of A, B, and C, we need to take the common denominator which is (x - 2)(x + 3)(x - 9)(x + 27)A
= 2(x + 3)(x - 9)(x + 27) + 2(x - 2)(x - 9)(x + 27)
= 50x³ + 5350x² + 41325x + 52590B
= 3(x - 2)(x - 9)(x + 27) - 9(x + 3)(x - 2)(x + 27)
= - 44x³ - 2919x² - 405x - 972C
= (x - 2)(x + 3)(x - 9) + 3(x - 2)(x + 27) - 9(x - 9)(x + 27)
= - 6x³ - 27x² + 1107x + 972.
The partial fraction decomposition is given as:2 + 2/(x - 2) + 3/(x + 3) - 9/(x - 9) - 27/(x + 27) = (25/35)/(x - 2) + (-11/6)/(x + 3) + (11/38)/(x - 9) + (- 1/2)/(x + 27) Now, we can integrate it as follows: ∫(25/35)/(x - 2)dx + ∫(-11/6)/(x + 3)dx + ∫(11/38)/(x - 9)dx + ∫(-1/2)/(x + 27)dx= 25/35 ln│x - 2│ - 11/6 ln│x + 3│ + 11/38 ln│x - 9│ - 1/2 ln│x + 27│ + c
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Define a variable and write an expression to model each situation
The cost of several movie tickets that are $6.25 each
Answer:
1. In mathematics, a variable is a symbol and placeholder for a quantity that may change, or any mathematical object. In particular, a variable may represent a number, a vector, a matrix, a function, the argument of a function, a set, or an element of a set. Eg: x, y, etc...
2. incomplete question
calculate the discount factor for one period for an investment given a rate of return equal to 6 percent.
Therefore, the discount factor for one period with a rate of return of 6 percent is approximately 0.9434.
To calculate the discount factor for one period with a rate of return equal to 6 percent, you can use the formula:
Discount Factor = 1 / (1 + Rate of Return)
Substituting the rate of return of 6 percent (0.06) into the formula:
Discount Factor = 1 / (1 + 0.06) = 1 / 1.06 ≈ 0.9434
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an important goal of inferential statistical analysis is to:
A important goal of inferential statistical analysis is to generalize results from the study to the target population (option c).
An important goal of inferential statistical analysis is to generalize the findings and results obtained from a study or sample to the larger target population. Inferential statistics involves making inferences, drawing conclusions, and making predictions about a population based on the analysis of a sample.
When conducting a study, it is often impractical or impossible to collect data from the entire population of interest. Instead, a sample is typically selected and studied. Inferential statistics helps researchers make inferences about the population based on the sample data.
By analyzing the sample data using inferential statistical techniques, researchers can estimate population parameters, test hypotheses, determine the significance of findings, and make predictions about the larger population. This allows for generalization of the findings and helps in making informed decisions and drawing conclusions that extend beyond the specific sample studied.
Options A, B, and D are also important goals in statistical analysis, but they are not specific to inferential statistics. Analyzing and describing data (option A) is a goal of descriptive statistics. Determining the validity of theoretical constructs (option B) and measuring the reliability and validity of measurement tools (option D) are goals related to assessing the quality and soundness of research instruments and constructs, but they do not specifically address the goal of generalizing results to a larger population. The correct option is c.
The complete question is:
An important goal of inferential statistical analysis is to:
A. analyze and describe data collected during a study.
B. determine whether theoretical constructs are valid.
C. generalize results from the study to the target population
D. measure the reliability and validity of measurement tools
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The digit 7 in which number represents a value of 0.7?
A) 199.7 B)67.4 C)52.47
Answer:
199.7
Step-by-step explanation:
as 7 is in the position of 0.7
Answer:
A) 199.7.
Step-by-step explanation:
0.7 or 7 tenths.
The first position after the decimal point is the tenths digit.
1 ptSome plants rely on hummingbirds for pollination. If a deadly disease infected the hummingbird population, what would MOST likely happen to the plants? They would die within hours.They would become endangered.They would need to migrate.They would grow at a slower rate.
If a deadly disease infected the hummingbird population, what would most likely happen to the plants option (b) They would become endangered
If a deadly disease infected the hummingbird population, it would most likely lead to a decrease in the pollination of plants that rely on hummingbirds for pollination. Without the hummingbirds to transfer pollen between flowers, these plants would have a reduced rate of successful pollination, which would result in a decrease in their ability to reproduce.
However, it is unlikely that the plants would die within hours or become endangered immediately, nor would they need to migrate. The effect of the loss of hummingbird pollinators on the plants would depend on the specific plant species, their pollination requirements, and the availability of alternative pollinators. Some plants may be more adaptable to using alternative pollinators, while others may suffer more severe consequences. It is also possible that the loss of hummingbirds could lead to a decline in the populations of other animals that depend on the plants, creating a ripple effect in the ecosystem.
Therefore, the correct option is (d) They would become endangered
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For a standard normal distribution, determine the probabilities in parts a through d below
Click here to view page 1 of the standard normal probabilly table.
Click here to view page 2 of the standard normal probabilly table
a. Find P(z ≤ 1.54).
P( z ≤ 1.54) =
(Round to four decimal places as needed.)
The probability of finding a z-score of 1.54 or lower on the normal distribution is given as follows:
P(z ≤ 1.54) = 0.9382.
How to obtain the probability?The z-score of this problem is given as follows:
z = 1.54.
Each z-score has a p-value, which represents the percentile of the z-score.
Hence the probability of finding a z-score of 1.54 or lower on the normal distribution is the p-value of z = 1.54, which is of 0.9382.
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Please solve this and show the steps on how you got your answer
well, let's take a look at the tickmarks on the triangle, the tickmarks mean that AC = CB, both AC and CB stemming out of vertex C, and both twin sides will make twin angles at the "base" or namely ∡A = ∡B, that means that 34 = x - 5, let's also recall that the sum of all interior angles in a triangle is 180°, so
\(34=x-5\implies \boxed{39=x} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\measuredangle A}{34}~~ + ~~\stackrel{\measuredangle B}{34}~~ + ~~\stackrel{\measuredangle C}{4y}~~ = ~~180\implies 68+4y=180 \\\\\\ 4y=112\implies y=\cfrac{112}{4}\implies \boxed{y=28}\)
Answer:
y = 28
Step-by-step explanation:
The dashes on line segments AC and BC indicate that the line segments are equal in length.
Therefore, as the triangle has two sides of equal length, it is an isosceles triangle.
The base angles of an isosceles triangle are equal, therefore ∠A = ∠B.
Interior angles of a triangle sum to 180°.
Therefore:
⇒ ∠A + ∠B + ∠C = 180°
⇒ 34° + 34° + 4y° = 180°
⇒ 68° + 4y° = 180°
⇒ 4y° = 112°
⇒ y = 112° ÷ 4°
⇒ y = 28
A company is designing a new cylindrical water bottle. The volume of the bottle will be 207 cm3. The height of the water bottle is 7.9 cm. What is the radius of the water bottle? Use 3.14 for pi.
The required radius of the water bottle is approximately 2.88 cm.
To find the radius of the cylindrical water bottle, we can use the formula for the volume of a cylinder:
Volume = π * radius² * height
Given that the volume of the bottle is 207 cm³ and the height is 7.9 cm, we can rearrange the formula to solve for the radius:
207 = 3.14 * radius² * 7.9
Dividing both sides of the equation by (3.14 * 7.9), we get:
radius² = 207 / (3.14 * 7.9)
radius² = 8.308
radius = √(8.308)
radius ≈ 2.88 cm (rounded to two decimal places)
Therefore, the radius of the water bottle is approximately 2.88 cm.
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SK Find the missing fraction.
2
7
Str
fra
+
5
10
Со
Answer:
5
-
5
Step-by-step explanation:
Mhm- thats kinda all
What is the equation of the line
with the points (1, 4) and (5, 12)?
12
Answer:
y = 2x + 2
Hope you have a great day!
SOMEONE PLEAS HELP ME OUTTTTT!!!
Answer:
31 degrees
Step-by-step explanation:
the side with the length of 29 can be seen as the radius of a circle.
and the sin value of an angle is the distance of a point on that circle from the x-axis. as the standard sin function is for the standard circle with radius 1, we need to multiply this by the actual radius.
15 = sin(?)×29
sin(?) = 15/29 = 0.5172...
? = 31.14... degrees ≈ 31 degrees
I’m not sure how to answer?
The transformation of the graph f(x) = x² to the graph g(x) = -3(x+5)² + 12 involves a horizontal shift, a vertical stretch, and a vertical translation.
The graphs of f(x) = x² and g(x) = -3(x+5)² + 12 are the parabola.
The transformation of the graph is following as:
Firstly, the parabola has been shifted horizontally by 5 units to the left, which is reflected in the expression (x+5)².
Secondly, the parabola has been stretched vertically by a factor of -3, which is reflected in the coefficient in front of (x+5)².
Finally, the parabola has been raised up to 12 units. This means that the vertex of the parabola has been shifted upwards from the origin to the point (−5,12).
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Alex wants to multiply a number by 12. First, she multiplies the number by 6. What number does she now need to multiply her answer by?
Answer:
Hello! your answer should be 2 :)
Step-by-step explanation:
the simpliest way to look at multipicaton is just complex addition, so, for example, 10x3 is the same as 10+10+10. so for your question, we'll just add 6 to itself until we get to twelve! 6x1=6, 6x2=12, nice and simple, there's your answer! :)
She need to multiply by 2 next.
What is Number System?A number system is defined as a system of writing to express numbers. It is the mathematical notation for representing numbers of a given set by using digits or other symbols in a consistent manner.
Alex wants to multiply the number with 12.
She multiples by 6 first.
So, we need to focus on that what can be multiply by 6 to get 12 or what will be the quotient dividing 12 by 6.
Both of the above will tell us what will be next number.
So,
6*2=12
or, 12/6=2
In both situation we get 2.
Hence, she need to multiply by 2 next.
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Guys can you please help. I dont understand. Thank you. :))))
Lines AB and CD intersect at E. If the measure of angle AEC=5x-20 and the measure of angle BED=x+50, find, in degrees, the measure of angle CEB.
Answer: 112.5
Step-by-step explanation: When line AB and CD intersect at point E, angle AEC equals BED so you set them equal to each other and find what x is. 5x -20 = x + 50, solving for x, which gives you 17.5. Finding x will tell you what AEC and BED by plugging it in which is 67.5. Angle BED and BEC are supplementary angles which adds up to 180 degrees. So to find angle CEB, subtract 67.5 from 180 and you get 112.5 degrees.
Your friend multiplies x+4 by a quadratic polynomial and gets the result x³-3x²-24 x+30 . The teacher says that everything is correct except for the constant term. Find the quadratic polynomial that your friend used. What is the correct result of multiplication?
c. What is the connection between the remainder of the division and your friend's error?
The correct quadratic polynomial is -8.8473x² + 1.4118x + 7.5, and the correct result of the multiplication is x³ - 3x² - 24x + 30. The connection between the remainder of the division and your friend's error is that the error in determining the constant term led to a non-zero remainder.
To find the quadratic polynomial that your friend used, we need to consider the constant term in the result x³-3x²-24x+30.
The constant term of the result should be the product of the constant terms from multiplying (x+4) by the quadratic polynomial. In this case, the constant term is 30.
Let's denote the quadratic polynomial as ax²+bx+c. We need to find the values of a, b, and c.
To find c, we divide the constant term (30) by 4 (the constant term of (x+4)). Therefore, c = 30/4 = 7.5.
So, the quadratic polynomial used by your friend is ax²+bx+7.5.
Now, let's determine the correct result of the multiplication.
We multiply (x+4) by ax²+bx+7.5, which gives us:
(x+4)(ax²+bx+7.5) = ax³ + (a+4b)x² + (4a+7.5b)x + 30
Comparing this with the given correct result x³-3x²-24x+30, we can conclude:
a = 1 (coefficient of x³)
a + 4b = -3 (coefficient of x²)
4a + 7.5b = -24 (coefficient of x)
Using these equations, we can solve for a and b:
From a + 4b = -3, we get a = -3 - 4b.
Substituting this into 4a + 7.5b = -24, we have -12 - 16b + 7.5b = -24.
Simplifying, we find -8.5b = -12.
Dividing both sides by -8.5, we get b = 12/8.5 = 1.4118 (approximately).
Substituting this value of b into a = -3 - 4b, we get a = -3 - 4(1.4118) = -8.8473 (approximately).
Therefore, the correct quadratic polynomial is -8.8473x² + 1.4118x + 7.5, and the correct result of the multiplication is x³ - 3x² - 24x + 30.
Now, let's discuss the connection between the remainder of the division and your friend's error.
When two polynomials are divided, the remainder represents what is left after the division process is completed. In this case, your friend's error in determining the constant term led to a remainder of 30. This means that the division was not completely accurate, as there was still a residual term of 30 remaining.
If your friend had correctly determined the constant term, the remainder of the division would have been zero. This would indicate that the multiplication was carried out correctly and that there were no leftover terms.
In summary, the connection between the remainder of the division and your friend's error is that the error in determining the constant term led to a non-zero remainder. Had the correct constant term been used, the remainder would have been zero, indicating a correct multiplication.
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