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3 years ago

Can someone help?? Showing work

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

sorry i wish i know how but i don't know how to do this but if there's other stuff you don't understand i can help you

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I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per squ

Dmitrij [34]

Answer:

$V = \frac{450L - 6 L^{3} }{10}$

Step-by-step explanation:

The volume of a cuboid can be determined simply by the formula: V= LWH

(where: L is length, H is height and W is width).

In this particular case the base is a square, which means the length and width are equal. Hence we can modify the equation of volume:

$V = L^{2} H$

Now we need to find the value of H in terms of L. For this we can develop the equation for cost incurred in building the storage shed. We find the area of each side of the cuboid, and then we multiply it by cost per square feet to find the total cost incurred; as shown below:

Base: $L$ × $L = L^{2}$

Roof: $L$ × $L = L^{2}$

Side: $4 H$ × $L = 4HL$ (we have considered all four sides)

Base: 4 $L^{2}$

Roof: 2 $L^{2}$

Side: $2.50 * 4HL = 10 HL$

Total cost:

4 $L^{2}$ + 2 $L^{2}$ + 10 $HL$ = 450

We simplify this equation further:

6 $L^2$ + 10<em>HL </em>= 450

10HL = 450 - 6 $L^2$

$H = \frac{450- 6 L^2}{10L}$

We now have the value of H, which we can substitute in the formula of Volume we deduced earlier:

substituting $H = \frac{450-6L}{10L}$ in $V = L^{2} H$ :

$V = L^2$ × $\frac{450 - 6L }{10L}$

Simplifying it further:

$V = L$ × $\frac{450 - 6L}{10}$

$V= \frac{450L - 6L^3}{10}$ is the final answer.

3 0

2 years ago

Could someone please help me with this<br>

natka813 [3]

Answer:

24 m/s

Step-by-step explanation:

Go to 20s on the graph(located on the x-axis) then go up. The point is right under 25m/s, therefore it is 24 m/s.

3 0

3 years ago

On a coordinate plane, a line goes through points (negative 4, 0) and (0, 4.5).

Mila [183]

-4 is the x intercept.as in the values on the x-axis

7 0

3 years ago

Tim bought nine new baseball trading cards to add to his collection. The next day his dog ate half of his collection. there are

Dmitrij [34]

Answer:

Step-by-step explanation:

the dog ate half so there is only the other half left and there is 43 cards left

1 half + 1 half = 1 whole so 43 + 43 = 86
86 is the total after he bought 9 new cards

86 - 9 = 77

7 0

1 year ago

The sum twice a number and 7, OMG I NEED HELP WITH THIS QUESTION SO I won't FAIL the test grades are due tomorrow

ZanzabumX [31]

The value of the sum of twice a number and 7 is 17.

<h3>What is an expression?</h3>

An expression is used to show the relationship between the variables that are given.

Let the number in this situation be 5. This will be illustrated as:

2n + 7

where n = number = 5

= 2n + 7

= 2(5) + 7

= 10 + 7

= 17

Therefore, the number is 17.

Learn more about numbers on:

brainly.com/question/24644930

#SPJ1

6 0

10 months ago