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baherus [9]
3 years ago
9

The perimeter formula for a rectangle is P=2L+2W. If the length of a rectangle is 2x^2+x-3 and the width is x+7, write an expres

sion for the perimeter of the rectangle.
Mathematics
1 answer:
Leto [7]3 years ago
8 0

Answer:

P=(2x*2+x-3)L+ (x+7)2w

Step-by-step explanation:

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an adult elephant that is 10ft tall casts a shadow that is 15ft long. find the length of the shadow that a 8ft telephone booth c
nadya68 [22]

Answer:

The length of the shadow the telephone booth is <u>12 ft</u>.

Step-by-step explanation:

Given:

An adult elephant that is 10 ft tall casts a shadow that is 15 ft long.

The length of the telephone booth is 8 ft.

Now, to find the length of the shadow the telephone booth casts.

Let the length of the shadow the telephone booth be x.

As given, an adult elephant that is 10 ft tall casts a shadow that is 15 ft long.

So, 10 ft is equivalent to 15 ft.

Thus, 8 ft is equivalent to x.

Now, to get the length of the shadow of the booth we get cross multiplication method:

\frac{10}{15} =\frac{8}{x}

<em>By cross multiplying we get:</em>

10x=120

<em>Dividing both sides by 10 we get:</em>

x=12.

Therefore, the length of the shadow the telephone booth is 12 ft.

3 0
4 years ago
Find the area of the trapezoid.
vekshin1

Answer:

18

Step-by-step explanation:

7 - 5 = 2

triangle = bh/2

triangle = 2(3) / 2

triangle = 3

rect = bh

rect = 3 x 5

rect = 15

trapezoid = 15 + 3

trapezoid = 18

8 0
2 years ago
Free Points!!....what is the best restaurant
Rainbow [258]

Answer:

ummmmm panda express ig

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
A building contractor is to dig a foundation 30 feet​ long, 12 feet​ wide, and 6 feet deep. The contractor pays ​$20 per load fo
kogti [31]

Answer:

$1800

Step-by-step explanation:

Volume of the foundation: 30*12*6 = 2160 cubic feet

we need to convert this into yards because a truckload is 8 cubic yards, 2160/3 = 720 cubic yd

One truckload is 8 cubic yards

# of truckloads needed: 720/8 = 90 truckloads

Cost: $20*90 = $1800

3 0
2 years ago
What is six and eight seven thousandths as a decimal
dedylja [7]

Answer:

6.087

Step-by-step explanation:

0.000

^ones

   ^tenths

      ^hundredths

         ^thousandths

7 0
3 years ago
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