3 years ago

What is the answer to this?

Mathematics

1 answer:

poizon [28]3 years ago

6 0

Answer:

Step-by-step explanation:

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A rectangular box with an open top has a length of x feet, a width of y feet, and a height of z feet. It costs $4.20 per square

daser333 [38]

Answer:

$C(x,y,z) = 4.2xy + 1.5xz + 1.5yz$

Step-by-step explanation:

We are given the following information in the question:

A rectangular box has a length of x feet, a width of y feet, and a height of z feet.

Area of base =

$\text{Length}\times \text{Base}\\=x\times y$

Cost of building base = $4.20 per square foot

Total cost of building base =

$\text{Area of base}\times 4.20\\= 4.2xy$

Area of 4 walls =

$2(\text{Length}\times \text{Height} + \text{Base}\times \text{Height}) \\=2(xz+yz)$

Cost of building base = $0.75 per square foot

Total cost of building 4 walls =

$\text{Area of 4 walls}\times 0.75\\= 1.5(xz+yz)$

Total cost of building box =

$C(x,y,z) = 4.2xy + 1.5(xz+yz)\\C(x,y,z) = 4.2xy + 1.5xz + 1.5yz$

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3 years ago

What’s 9 * 9 * 9 * 9 as an exponent?

CaHeK987 [17]

Answer:

$9^{4}$

Step-by-step explanation:

$9^{4}$ means 9*9*9*9

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3 years ago

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Match each p to the correct £ amount

Serjik [45]

500p=5.00 50p=0.50 5p=0.05

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3 years ago

F= 9/5c + 32 <br>solve for C

Zolol [24]

F I think so and thank you

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4 years ago

Dora took 10 hours to walk a 30 mile trail how long did it take her to walk 9 miles going the same speed?

Brrunno [24]

3 hours
$3 \times 10 = 30 \: so \: it \: is \: 3 \: mph \: 3 \times 3 = 9$

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4 years ago