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Juliette [100K]
3 years ago
12

A rectangular driveway is 8 feet wide and it has an area of 112 square feet. How long is the driveway?

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0

<u>Given:</u>

A rectangular driveway is 8 feet wide and it has an area of 112 square feet.

We need to determine the length of the driveway.

<u>Length of the driveway:</u>

The length of the driveway can be determined using the formula,

Area=length \times width

where Area = 112 square feet and width = 8 feet.

Substituting the values, we have;

112=length \times 8

Dividing both sides by 8, we get;

14=length

Hence, the value of the length is 14 feet.

Thus, the length of the driveway is 14 feet.

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Answer:30km/hr

Step-by-step explanation:

Total distance=294km

Speed=s

Distance=d

Time=t

First drive:

t=5

d=s x t

d=s x 5

d=5s

Second drive:

t=4

Speed is 6km/h greater than the first speed

The new speed= s+6

d=4(s+6)

Total distance=294

5s + 4(s + 6)=294

5s + 4s + 24=294

Collect like terms

5s + 4s=294 - 24

9s=270

Divide both sides by 9

9s/9=270/9

s=30

First speed=30km/hr

4 0
3 years ago
Each leg of a 45°-45°-90° triangle measures 12 cm what is the hypoyenuse
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To find the hypotenuse in a 45-45-90 triangle multiply the legs by \sqrt{2}
So...
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5 0
3 years ago
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Musya8 [376]
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3 0
3 years ago
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3. A quadratic polynomial whose<br>product and the sum of<br>zéroes are -12 and 1​
muminat

Answer:

the equation is : x²-x-12

Step-by-step explanation:

the quadratic equation is in the form of : y=ax²+bx+c

the product of the zeros is -12 and the sum is 1

b  = - 1

c=-12 (product)

y=x²-x-12

check : factorize first (x+3)(x-4)=0

either x+3=0 then x=-3

or x-4=0 then x=4

-3*4=-12

-3+4=1

the equation is : x²-x-12

3 0
4 years ago
Scientists are studying the temperature on a distant planet. They find that the surface temperature at one location is 40° Celsi
jok3333 [9.3K]

Answer:

T(h) = 20 - 3h

Step-by-step explanation:

We are told that for every km you go up, the temp goes down 3°.

Let's say you go up 1km, then the temp should be 17°. We can easily represent it by the equation: T(h) = 20 - 3h

If we go up 1km: T(1) = 20 - 3*(1) = 20 - 3 = 17°

If we go up 2km: T(2) = 20 - 3*(2) = 20 - 6 = 14°

If we go up 3km: T(3) = 20 - 3*(3) = 20 - 9 = 11°

4 0
3 years ago
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