Yong is measuring two pyramids whose bases are rectangles.
Given the length and width of the base of the first pyramid, as well as its volume V, Yong uses the formula
h=3v/lxW
to compute its height h to be 7 centimeters.

The second pyramid has the same volume and base length, but its base's width is 2 times as long. What is its
height?

Answers

Answer 1

Answer:

Answer is 7/2 cm

Step-by-step explanation:

1. Set a ratio

[tex]7=\frac{3V}{l*w}:h=\frac{3V}{l*2w}[/tex]

2. Move 2w from denominator to LHS (Left hand side)[tex]\frac{7}{2}w=\frac{3V}{l}[/tex]

[tex]\frac{7}{2w}=\frac{3V}{l}[/tex]

3. The four options are 7/4, 7/2, 14 or 28 cm

Answer 2

Answer:

Choice B

7/2 cm

Step-by-step explanation:


Related Questions

it's asking to write an equation in slope-intercept form for the line with slope -4 and y-intercept 7. then graph the line. please help ​

Answers

Answer:

Equation = y = -4x+7

See the graph below

Step-by-step explanation:

The equation of the line in slope intercept form is expressed as;

y = mx+c

Given

slope m = -4

y-intercept c = 7

Substitute

y = -4x + 7

Get the x intercept.

at y = 0

0 = -4x + 7

4x = 7

x = 7/4

x = 1.75

The x coordinate  (1.75, 0)

Get the y intercept

at x = 0;

y = -4(0)+7

y = 0+7

y = 7

The y coordinate is (0, 7)

Help due soon will give brainliest

Answers

Answer:

h=14

Step-by-step explanation:

So since the triangular shape is a right triangle, we can use a Pythagorean triple. For this question, lets use (5,12,13).  But, if you just want to use the formula:

5^2+x^2=13^2

25=x^2=169

x^2=144

x=12

That means a part of h is 12. BUT, we also have an extra two ft on top of the triangle, so h=12+2=14.

whats the area help me youll get brainliest answer

Answers

Answer:

Area = 14m²

Step-by-step explanation:

area of rectangle = length × breadth

area of rectangle = 4 × 2

area of rectangle = 8m²

area of Triangle = 1/2 × base × height

area of Triangle = 1/2 × 4 × 3

area of Triangle = 6m²

Total area = 8 + 6

Total area = 14m²

Please help me please

Answers

Answer: 72

Step-by-step explanation:

Answer:

72

Step-by-step explanation:

Circumference of a circle = 2πr

Area of a circle: πr^2

Plug in:

C = 2πr

30.1 = 2(3.14)r

30.1 = 6.28r

r = 4.79 (Dividing both sides by 6.28)

Use area of the circle:

A = 3.14(4.79)^2

= 72.044474

Round to nearest whole number = 72

Will give brainliest help

Answers

Answer:

6.50

Step-by-step explanation:

Is it

What two numbers multiply to 30 and add to -17

Answers

Answer:

-15 and -2

Step-by-step explanation:

Since a negative times a negative equals a positive, but when added, still stays a negative, the factors must both be negative.

Negative Factors of 30:

-30 + -1 = -31

-15 + -2 = -17

-10 + -3 = -13

-6 + -5 = -11

The two factors of 30 that add up to -17 are -15 and -2.

Hope this helps. Have a nice day.

Please help what's the answer

Answers

Answer:

The answer is going to be No, (-1, 2) is only a solution for the equation 2x + 5y = 8

Let's find out if it is a solution first:

3 x -1 - 2 x 2 = -3 - 4 = -7

2 x -1 + 5 x 2 = -2 + 10 = 8

From this, you can tell that (-1, 2) is only a solution to 2x + 5y = 8

check the pic that i attatched

Answers

Answer:

≈ £ 4584.38

Step-by-step explanation:

Firstly, we need to find the number of litres that Mr. Leonard needs to fill up his tank:

We know that there is already 450 litres in the 1200 litre tank, so he must need 1200 - 450 = 750 litres.

I'm not quite sure what the variable p means, but I'm going to assume that p represents the number of litres and that 81.5 is the price per litre in pounds.

So:

Total price = 81.5p

Total price = 81.5(750)

Total price = £61125

We have to remember though that the question is asking for the discount and not the discounted price, so:

61125 × 7.5%

61125 × 0.075 = 4584.375

≈ £ 4584.38

The mean of 10 numbers is 14 three of the numbers have a mean of 4. The remaining 7 numbers are 15, 18, 21, 5, M, 34 and 14 find:
(I) The sum of the remaining 7 numbers,
(ii) the value of m.
please answer ASAP.. please​

Answers

Answer:

21

Step-by-step explanation:

sum of all numbers is 10×14=140

add the 6no=107

sum of3 no is 3×4=12

107+12=119

140-119=21

m=21

Which describes the slope of the line that passes through the points (2, 5) and (-4,5)?

Answers

Answer:

0

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(5-5)/(-4-2)

m=0/-6

m=0

An online bookstore sells novels and magazines. Each novel sells $4, and each magazine sells for $1. If Sadie purchased a total of 11 novels and magazines that have a combined selling price of $20, how many novels did she purchase?

Answers

It will be 2000mll you welcome

How can you solve this equation? 15 = y - 5
A. Subtract 5 from each side.
B. Subtract 15 from each side.
C. Add 5 to each side.
D. Add 15 to each side.​

Answers

Answer:

C) add 5 to each sides.

Step-by-step explanation:

1) Add 5 to both sides.

[tex]15 + 5 = y[/tex]

2) Simplify 15 + 5 to 20.

[tex]20 = y[/tex]

3) Switch sides.

[tex]y = 20[/tex]

You need to add 5 to each sides in order to solve this equation. if you do, you'll get an answer of 20.

The width of a rectangle measures (9h 1) centimeters, and its length measures
(2h – 4) centimeters. Which expression represents the perimeter, in centimeters, of
the rectangle?
0-2 + 8h
0-10 + 22h
Submit Answer
16h - 4
0-5 + 11h

Answers

Answer:

(22h - 8) centimeters

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

= 2{(9h - 1) + (2h - 4)}

= 2(9h - 1 + 2h - 4)

= 2(11h - 4)

= (22h - 8) centimeters

Please help me! Dont solve for 1 and 2 just write an inequality! 20 points!
[Inequalities Review]

Answers

Answer:

1.) 5+x < 45

2.) 3 < y-2

3.) x ≥ 10

4.) x ≤ 3

Step-by-step explanation:

:)

In triangle EFG, the measure of angle E is 97 degrees, and the measure of angle F is 15 degrees. What is the measure of angle G?

Answers

Answer:

Measure of angle G is 68°.

Step-by-step explanation:

In triangle EFG,

Measure of angle E = 97°

Measure of angle F = 15°

By the triangle sum theorem,

Sum of measures of all interior angles of triangle = 180°

m(∠E) + m(∠F) + m(∠G) = 180°

97° + 15° + m(∠G) = 180°

m(∠G) = 180° - 112°

           = 68°

Therefore, measure of angle G is 68°.

Multiply −0.54(8) please and thanks.

Answers

-.54*8
And we get: -4.32

Answer:

-.54*8

And we get: -4.32

Step-by-step explanation:

help pls!! .................................

Answers

Answer:

Step-by-step explanation:

B   no b/c  7 miles is 12,320 yds and 40 times around route is only 9600 yds... keep running cyrus.. :P  

plsss answer 20 points
The tip of a 8 cm minute hand of a clock sweeps out circular arcs.
What is the length of the arc made by the tip of the minute hand between 3:12 and 3:32?
Use 3.14 for pi. Round your answer to the nearest hundredth.
Enter your answer in the box.

Answers

Answer:

16.75 cm

Step-by-step explanation:

The circumference of the circle is πd

The diameter is 16, so the circumference is 16π.

The minute hand goes for 20 min between 3:12 and 3:32

20 min is 1/3 of 60 min.  

Therefore, the minute hand swept 1/3 of the circumference, or 1/3(16)π

1/3(16)π = 1/3(16)(3.14) = 16.75 cm

can you help me please​

Answers

the answer is 5/10 units

The length of the ___ of the rectangular region approximates the length of the ___

Answers

Answer:

The length of the height of the rectangular region approximates the length of the radius.

Use the explicit formula to find the 7th term of the Geometric sequence.

A(1) = 5 r = 4

Answers

Answer:

a

Step-by-step explanation:

a

can someone help me with this pls?

Using approximations to 1 significant figure,
estimate the value of
0.482 x 61.22
(square root)98.01

Answers

Answer:

If the picture below looks like the equation this should be the answer

17872.49

Step-by-step explanation:

Please help I need an answer quickly, please

Answers

We will want to use the Pythagorean theorem to solve
a^2 + b^2 = c^2
the hypotenuse, longest line, will be c
8^2 + b^2 = 17^2
64 + b^2 = 289
We will then subtract 64 from both sides
b^2 = 225
we will then square both sides
b = 15 kilometers

help (: I’m so lost

Answers

Answer:

The answer to no. 3 is 3

Step-by-step explanation:

No 3 is 3 x^9/2

A toy box is 5 feet long, 24 inches wide and 30 inches high. What is the volume of the toy box in cubic feet?

Answers

Answer:

25 cubic feet

Step-by-step explanation:

You need to convert all units to feet and then multiply the dimensions.

24 inches is 2 feet

30 inches is 2.5 feet

So, you would multiply 5X2X2.5= 25.

Help please I need to hurry!!!!!!!!!!!!!!!!!!

Answers

Answer:

1 - 7

3 - 11

5 - 15

Step-by-step explanation:

pls brainliest


[tex] {x}^{2} + 5 = 30[/tex]

ǝɹǝɥ x ɟo ǝnlɐʌ ǝɥʇ sᴉ ʇɐɥʍ

-: sᴉɥʇ ǝʌlos noʎ uɐɔ ʎǝɥ

Answers

Answer:

x^2=25

x=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

here's your solution

=> x^2 + 5 = 30

=> take constant to right side

=> x^2 = 30 - 5

=> x^2 = 25

=> now take square to right side it will be

converted into root

=> x = 25

=> x = 5

hope it helps

The Dragons Soccer Team is having a pizza party and voted on
the toppings the players preferred. Of the 25 players, what
percent prefer cheese?

Answers

Answer:

no enough info

Step-by-step explanation:

Answer:

36%

Step-by-step explanation:

h(j + i) - k5 + h
when h = 3, i = 4, j = 2, and k = 1
pls put how you did it

Answers

Answer:

16

Step-by-step explanation:

First you want to plug in all the numbers where the letters are

h ( j + i )- k(5) + h

3 ( 2 + 4 )- 1(5) + 3

After this step you will have to distribute the 3 outside the parenthesis. Which you do by multiplying everything in side the parenthesis by the outside number which is three.

6 + 12 - 1(5) + 3

Then you just follow PEMDAS to solve for the rest

6 + 12 - 5 + 3

18 - 5 + 3

13 + 3

16

Subtract: (-9y^6+3)-8y^6

Answers

-9y^9-8y^6
I hope this helped
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