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3 years ago

:)

Mathematics

1 answer:

ddd [48]3 years ago

8 0

Answer:

the answer is A

Step-by-step explanation:

410 is the total amount paid

so 50 dollars was a base fee for the service charge

and 90 was per tire. Because we dont know how many tires she bought 90 x number of tires(t) = 90t

so 410 dollars = 50 dollars(service fee) + 90 dollars ( multilied by number of tires "t")

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Justin wants to use 376 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should h

Anestetic [448]

When the sides are the same legnth, that is max area
(I can find the max area with calculus but I don't think you know that)
so
if we assume that they are equal
L=W
376=perimiter
P=2(L+W)
376=2(L+W)
376=2(L+L)
376=2(2L)
376=4L
divide both sides by 4
94=L

the dimeintions are 94 by 94, if we mulipy we get 8836ft

C is answer

(note: for those people who say rectangles have to have different side legnths, that is incorrect because the requirement is 4 right angles, all squares are recangles, but not all rectangles are squares)

C is answer

3 0

3 years ago

Please help. I don't understand

Andreas93 [3]

Answer:

Length of third side is: $\mathbf{8m^3-4m^2+3m}$

Step-by-step explanation:

Perimeter of triangle = $18m^3+2m^2-m$

Length of side 1= $5m^3+3m^2-2m$

Length of side 2= $5m^3+3m^2-2m$

We need to find length of third side.

The formula used is: $Perimeter \:of\:triangle=Sum\:of\:all\:sides$

Putting values and finding length of third side.

$Perimeter \:of\:triangle=Sum\:of\:all\:sides\\18m^3+2m^2-m=5m^3+3m^2-2m+5m^3+3m^2-2m+Length\:of\:3rd\:side\\18m^3+2m^2-m=5m^3+5m^3+3m^2+3m^2-2m-2m+Length\:of\:3rd\:side\\18m^3+2m^2-m=10m^3+6m^2-4m+Length\:of\:3rd\:side\\Length\:of\:3rd\:side=18m^3+2m^2-m-(10m^3+6m^2-4m)\\Length\:of\:3rd\:side=18m^3+2m^2-m-10m^3-6m^2+4m\\Length\:of\:3rd\:side=18m^3-10m^3+2m^2-6m^2-m+4m\\Length\:of\:3rd\:side=8m^3-4m^2+3m$

So, Length of third side is: $\mathbf{8m^3-4m^2+3m}$

5 0

3 years ago

Given a sphere with a radius of 7.5 ft.

ad-work [718]

Answer:

volume of the sphere is V=1766.25 $ft^{3}$

Step-by-step explanation:

step:1

<u>The volume of the sphere formula is V= $\frac{4 pi r^{3} }{n}$ </u>

Given radius of the sphere r=7.5 ft

substitute given radius r=7.5 ft value in volume of the sphere formula

$V=[tex]\frac{4 pi r^{3} }{n}$ \\

V=\frac{4(3.14)(7.5)^{3} }{3}[/tex]

V=1766.25 $ft^{3}$

Final answer is V=1766.25 $ft^{3}$

3 0

3 years ago

The original price of a pair of headphones is $39.99 before tax. When David bought the headphones they rang up for $31.99 before

aleksley [76]

Answer:

To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price. The result is the total cost—this is what the customer pays.

Step-by-step explanation:

8 0

3 years ago

Jared's Cafe uses 5 bags of coffee every day. How many days will 1/2 of a bag of coffee last?

Inessa05 [86]

Answer:

kgyutguyguky

Step-by-step explanation:

4 0

3 years ago