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kramer
3 years ago
15

2. The rectangular floor of a garage has an area of 198 square feet. Andy knows that the floor is 7

Mathematics
1 answer:
Charra [1.4K]3 years ago
6 0

Answer:

length = 18 ft

Step-by-step explanation:

Let w = width

L = w+7

Area = l*w

198 = (w+7) (w)

Distribute

198 = w^2 +7w

Subtract 198 from each side

0 = w^2 +7w -198

Factor

What 2 numbers multiply to -198 and add to 7

18* -11 = -198

18+-11 = 7

0=(w+18) (w-11)

Using the zero product property

w+18 =0  w-11=0

w= -18   w=11

We cannot have negative width  so w=11

We want the length

l = w+7

l = 11+7 = 18

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The question is below
VARVARA [1.3K]

Answer:

68

Step-by-step explanation:

  1. We have to find area first:

Flower bed: (triangle)

A =

\frac{1}{2} bh

1/2 × 3 × 8

3 times 8 is 24, time 1/2 is <u>12</u>

Vegetable Patch: (trapezoid)

A =

\frac{b1 + b2}{2} h

5 + 7 = 12

12 / 2 = 6

6h or 6 × 10 = <u>60</u>

Whole Garden:

14 × 10 = 140

2. Then we subtract.

140 - 72 is 68

5 0
3 years ago
True or False:
andrezito [222]

Step-by-step explanation:

LHS = 5x+y =5(1)+2= 5+2= 7

RHS = 7

since LHS= RHS

LHS = 7x-2y =7(1)-2(2)=7-4=3

RHS = 3

since LHS=RHS

(1, 2) is a solution to the following system of equations.

True

8 0
3 years ago
Read 2 more answers
What is 2√47. please help me. I need this ASAP
Stolb23 [73]

Answer:

13.7113092008

Step-by-step explanation:

hope this helps

4 0
2 years ago
Read 2 more answers
I need a. Correct answer I will mark brainliest
Otrada [13]

Answer:

Option (A)

Step-by-step explanation:

By satisfying the equation of a function 'f' by each coordinates given in the options we can get the point which lies on the graph of f(x) = 2\times (5)^x

Option (A). (1, 10)

f(1) = 2\times (5)^1

10 = 10

True.

Therefore, point (1, 10) lies on the graph.

Option (B). (0, 10)

f(0) = 2\times 5^0

10 = 2

Not true.

Therefore, point (0, 10) doesn't lie on the graph.

Option (C). (10, 1)

f(10) = 2\times 5^{10}

1 = 19531250

Not true.

Therefore, point (10, 1) doesn't lie on the graph.

Option (D). (0, 0)

f(0) = 2\times 5^0

0 = 2

Not True.

Point (0, 0) doesn't lie on the graph.

Option (A) will be the answer.

4 0
3 years ago
Factorization of <br>x²+6x+5​
crimeas [40]

Answer:

(x +1) (x + 5)

Step-by-step explanation:

Factorization of x²+6x+5​

To factorise this quadratic expression we'll find 2  factors of 5 that when added gives the coefficient of x which is

Factors = +1 and +5

Sum = +6, product = +5

Rewriting equation

x² + x + 5x + 5

Factorising

x ( x +1) +5 ( x + 1)

(x +1) (x + 5)

I hope this was helpful, please mark as brainliest

7 0
3 years ago
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