Answer:
answer is D of course
Step-by-step explanation:
the sum of exterior angle in any polygon is 360°, all the answers above is less than 360°, it's not complicated that much
plsss help!!
150 students in Years 10 and 11 visit a school canteen.
Some students have packed lunches.
Some students have a cooked lunch.
56 out of the 89 students who have packed lunch are in Year 10.
There are 72 Year 11 students.
Work out how many Year 10 students have a cooked lunch.
V= U + at
U=2 a=-5 t=1/2
What is the value of V?
Answer:
v=-1/2
Step-by-step explanation:
v=u+at
v=2+(-5*1/2)
v=2-5/2
v=4-5/2
v=-1/2
help! please I need the answer now !!
Answer:
(- 5, 0 ), (7, 0 )
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (1, - 108 ), thus
y = a(x - 1)² - 108
To find a substitute (0, - 105 ) into the equation
- 105 = a(- 1)² - 108 ( add 108 to both sides )
3 = a
y = 3(x - 1)² - 108 ← equation in vertex form
To find the x- intercepts, let y = 0, that is
3(x - 1)² - 108 = 0 ( add 108 to both sides )
3(x - 1)² = 108 ( divide both sides by 3 )
(x - 1)² = 36 ( take the square root of both sides )
x - 1 = ± \(\sqrt{36}\) = ± 6 ( add 1 to both sides )
x = 1 ± 6, so
x = 1 - 6 = - 5
x = 1 + 6 = 7
x- intercepts are (- 5, 0), (7, 0)
x=25 what is the value of 5x-5
(Please explain it with proces)
Thank you
Answer:
120
Step-by-step explanation:
5x-5
Let x = 25
Substitute into the expression
5(25) - 5
Multiply
125 -5
Subtract 120
Answer:
120
Step-by-step explanation:
If X = 25
where you see X , you put 25 there
5X - 5
5(25) - 5
125 - 5
= 120
What is the range of the values for the sample means? 1 1.2 1.8 2
Answer:
The answer is B, 1.2
Step-by-step explanation:
mean of 8 5 7 5 9 3 5
Write an expression equivalent to `m+m+m+m` that is a product of a coefficient and a variable. Please include an explanation!
Answer:
4m
Step-by-step explanation:
it would be 4m because there are four different copies and the variable being used originally is 'm'. therefore, we can move it around and since addition is basically the longer version of multiplication, we would correct this to 4m.
good luck :)
i hope this helps
have a nice day !!
Please help like asap this is due tomorrow morning but I'm not staying up all night doing it
100 points
Answer:
x = - 26
Step-by-step explanation:
2x - 11 - 3x = 15
- x - 11 = 15
- x = 15 + 11
- x = 26
x = - 26
Answer: x = -26
Step-by-step explanation:
How to solve your problem
2x-11-3x=15
Solve
1
Combine like terms
2x - 11 3x +15
-x -11 = 15
Add
11
to both sides
-x-11=15
-x-11+11 = 15 + 11
3
Simplify
Add the numbers
Add the numbers
Given: 9y^0
A. Simplify the expression for y=3.
B. Construct Arguments Will the value of the given expression vary depending on y? Explain
Answer:
A. 9 x 3^0 = 9 x 1 = 9
B. the value doesnt vary depending on y as any number whose power is zero is always 1.
A construction crew is lengthening a road that originally measured 41 miles. The crew is adding one mile to the road each day. Let L be the length (in miles) after D days of construction. Write an equation relating L to D. Then use this equation to find the length of the road after 38 days.
Answer:
We can simply find our answer and this is our solution
38D+41=L
Step-by-step explanation:
Which equation has infinitely many solutions? A 2x + 7x - 5 = -9x + 5 B 4x - 5x + 3 = -5x + 4x - 3 C 3x - 2 = 2 - 3x D x + 3x + 6 = 6 + 4x
Answer:
D
Step-by-step explanation:
Step by step:
| add 1*x to 3*x
4+3*x+6=6+4*x | -4*x
6=6
A builder uses the coordinate plane below to plan the location of a rectangular plot of land for a new house. The length of one side of the house will be located from (2,8) to (2,−4). If the perimeter of the plot of land is 36 units, where can the builder plan to build the new house?
Answer:
Step-by-step explanation:
160,60 s the 4th vertex
ok bbbbbbbbbbbbbbbbbbbbbbbb
p|z help. It seems that I've got myself in a bit of a pickle.
view screenshot
thank you!
(and more is coming after this one because this is one of those things where I can't see the next question until I answer the question I'm on ...)
Answer:
Equation - C = 40P
Answer - $520 for 13 people
Step-by-step explanation:
Using C = 40P, plug in 13 for P, making it C = 40 * (13). This equals $520 for 13 people. By multiplying the amount of people there is by the cost of each ticket, you get $520.
Hope this helps!! Good luck!
Answer:
equation: C = 40P
cost for 13 people: 520 dollars
Step-by-step explanation:
each person needs to pay $40, so we know that our C will be directly proportional to P where each P costs 40 dollars ( C = 40P )
we have 13 people so we replace the variable P with 13 ( C = 40(13) )
we multiply 13 by 40 and end up with C = 520, so we know that will be the cost for 13 people
Help please show work too
Answer:
B
Step-by-step explanation:
I am not sure what your teacher wants but I guess you can say the following:
at n = 1, the cost is 4 dollars.
at n = 2, the cost is 8 dollars.
This trend is the same where the cost increases by 4 as n increases by 1. This means the C = 4n. We can check this by plugging values into the equation.
For the first row, C = 4, n = 1, and so the equation satisfies it. For the second row in the table, C = 8, n = 2, and so the equation works again. The other data points also agree using the equation.
4. A local orchard packages apples in bags. When full, the bags weigh 5 pounds
each and contain a whole number of apples. The weights are normally distributed
with a mean of 5 pounds and a standard deviation of 0.25 pound. An inspector
weighs each bag and rejects all bags that weigh less than 4.75 pounds. What
percentage of bags will the inspector reject? *
Your answer
Answer: The percentage of bags will the inspector reject = 15.87%
Step-by-step explanation:
Given, The weights of apple bags are normally distributed with a mean of 5 pounds and a standard deviation of 0.25 pound.
i.e. \(\mu=5\) and \(\sigma=0.25\)
Let X be the weight of any random apple bag.
Since an inspector weighs each bag and rejects all bags that weigh less than 4.75 pounds.
Then, the probability of bags will be rejected = probability that bags weigh less than 4.75 pounds.
\(=P(X<4.75)\\\\=P(\dfrac{X-\mu}{\sigma}<\dfrac{4.75-5}{0.25})\\\\=P(z<-1)\ \ \ [z=\dfrac{X-\mu}{\sigma}]\)
\(=1-P(z<1)\\\\=1-0.8413\ \ \ [\text{By z-value table}]\\\\=0.1587=15.87\%\)
Hence, the percentage of bags will the inspector reject = 15.87%
Generate an equivalent algebraic expression by combining like terms.
2x-6y+2x^2-21-4y+4x-x^2
Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
How do I find the x to this picture
Answer:
\(\boxed {\boxed {\sf x \approx 30.9}}\)
Step-by-step explanation:
This is a right triangle and we are looking for a missing side. We can use the Pythagorean Theorem to find x.
\(a^2+b^2=c^2\)
where a and b are the legs and c is the hypotenuse.
In this triangle, the legs are 28 and 13 because they make up the right right angle. x is the hypotenuse because it is opposite the right angle.
\(a= 28 \\b= 13 \\c= x\)
Substitute the values in.
\((28)^2+(13)^2=x^2\)
Solve the exponents.
(28)²=28*28=784 (13)²=13*13=169\(784+169=x^2\)
Add the two numbers.
\({953} =x^2\\\)
We want to solve for x, which means we must isolate it.
The x is being squared. The inverse of a square is the square root, so take the square root of both sides of the equation.
\(\sqrt{953}=\sqrt{x^2} \\\)
\(\sqrt{953} = x\)
\(30.87069808=x\)
Let's round to the nearest hundredth. The 7 in the thousandth place tells us to round the 8 to a 9.
\(30.9 \approx x\)
x is about 30.9
Increasing the side lengths of a triangle by 100% in order to create a similar triangle, increases the area by 100% as well.
Answer:
False
Step-by-step explanation:
Lets take an example triangle. The height is 4 and the base is 6. The area of this triangle is: 4x6=24, 24/2=12. Since increasing it by 100% is the same as doubling we get a height of 8 and a base of 12. Now we find the area of our new triangle: 8x12=96, 96/2=48. 48 is not 12 increased by 100% so this is false.
I hope this helps you and is right.
PLEASE HELP ITS ALGEBRA 1!!
Answer: f(x) +/- y intercept
Step-by-step explanation:
A 2-column table with 4 rows. Column 1 is labeled Miles with entries question mark, 70, 210, 280. Column 2 is labeled Hours with entries 1, 2, 6, 8.
What is the unit rate of the number of miles driven per number of hours of driving?
25 miles per hour
30 miles per hour
35 miles per hour
40 miles per hour
Answer:
35 miles per one hour
Step-by-step explanation:
Did it and got 100%
please help me i will give brainliest to first person to anwser.
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
Without using a calculator, convert the fraction to a decimal.
2/4=?
To convert the fraction 2/4 to a decimal, we can perform the division 2 divided by 4 using long division or mental math.
2 ÷ 4 = 0.5
Therefore, 2/4 as a decimal is 0.5.
A submarine began at sea level and descended toward the ocean floor at a rate of −0.015 km per minute. Its final depth was −0.3675 km. Estimate how long it took the submarine to reach its final depth by rounding the dividend and divisor to the nearest hundredth.
Estimate of the dividend:
0.37
0.38
–0.37
–0.38
Estimate of the divisor:
–0.02
–0.2
0.02
0.2
Estimate of the quotient:
1.85
5.67
18.5
23.2
*pick one for each*
Steel sheeting costs 2¢ per square inch. How much will David spend to build the model out of steel? Write your answer as a dollar amount.
**URGENT**SHOW WORK** -38-3x=-4(1+5x)
Answer:
x = 2
explanation:
-38-3x=-4(1+5x)
-38-3x=-4-20x
-38+4=-20x+3x
-34 = -17x
x = -34/-17
x = 2
Check:
-38 - 3x
-38 - 3*2
-44 ..............one side
-4(1+5x)
-4(1+5(2))
-4(1+10)
-4(11)
-44 ..............second side matches as well, so its definitely correct.
Answer:
x =
Step-by-step explanation:
-38 - 3x = -4 (1 + 5x)
first, remove the brackets, using distribution (-4 gets multiplied to what is in the brackets)
-38 - 3x = -4 - 20x
bring variables to one side (I prefer the right)
-38 - 3x + 3x = -4 - 20x + 3x
-38x = -4 - 17x (simplified)
bring numerical values to the opposite side
-38 + 4 = -4 + 4 - 17x
-34 = -17x (simplified)
divide both sides by -17 to isolate 'x', the negatives will cancel out
-34 = -17x
-17 -17
2 = x
Therefore x = 2
Which expression is equal to 42⋅48?
416
410
46
4−6
Answer:
I think it is the last one 4-6
Using a proportion, how can we find 12% of 125? Please show your proportion set up and all work. HELP ME ASAPPPPPPPPP THE CORRECT ANWSER GETS A BRAINLIST I HAVE 3MINS SOMEONE PLEASE!!!!!
Answer: 15
Step-by-step explanation:
Write 12% as a fraction: 12/100
Since, finding the fraction of a number is same as multiplying the fraction with the number, we have: 12/100 of 125.
12/100 × 125
If you are using a calculator, enter 12÷100×125 which will give you 15 as the answer.
The table shows the relationship between the number of drops of food color added to different number of cups of cake frosting:
Cups of
Frosting Drops of
Food Color
2 8
3 12
4 16
Which point below shows an equivalent ratio in this situation?
A graph is shown. The title of the graph is Cake Decorating. The horizontal axis label is Frosting in cups. The horizontal axis values are 0, 10, 20, 30, 40, 50, 60. The vertical axis label is Food Color in drops. The vertical axis values are 0, 40, 80, 120, 160, 200, 240. Point B is plotted on the ordered pair 50,200, and Point J is plotted on the ordered pair 40, 10.
Point B, because if cups of frosting are 50, then drops of food coloring will be 200
Point B, because if drops of food coloring are 50, then cups of frosting will be 200
Point J, because if cups of frosting are 40, then drops of food coloring will be 10
Point J, because if drops of food coloring are 40, then cups of frosting will be 10
Answer:
The table shows the relationship between the number of drops of food color added to different number of cups of cake frosting:
Step-by-step explanation:
Answer:
1st one
Step-by-step explanation:
I'LL GIVE BRAINLIEST!!
( True / False ) Force is used in aristocracy.
If true how?
If false why?
Answer:
true
Aristocracy is a form of government in which political power is held by a select few privileged people called aristocrats or nobles. Coming from a Greek word meaning “rule by the best,” aristocrats are considered the most qualified to rule because of their moral and intellectual superiority.