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Brrunno [24]
3 years ago
14

Sam decides to build a square garden. If the area of the garden is 4x2 + 28x + 49 square feet, what is the length of one side of

the garden?
A. (2x + 7) feet
B. (7x + 2) feet
C . (2x − 7) feet
D. (7x − 2) feet
Mathematics
2 answers:
xenn [34]3 years ago
8 0

Answer:

A. (2x+7)

Step-by-step explanation:

Zinaida [17]3 years ago
7 0
The formula of a square area is A = L²
so if A = 4x2 + 28x + 49, so the other length is <span>A. (2x + 7) feet
proof 

L=</span>(2x + 7), L²= (2x + 7)² =4x2 + 28x + 49,
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nignag [31]

Answer:

Volume of medication in the cup = 50.24 cubic inches

Step-by-step explanation:

Volume of the cylindrical cup = πr^2h

Radius, r = 2 inches

Height, h = 8 inches

Volume of the cylindrical cup = πr^2h

= 3.14 × 2^2 × 8

= 3.14 × 4 × 8

= 100.48

Volume of the cylindrical cup = 100.48 cubic inches

If David only fills the cup half way,

then, the volume of medication in the cup = Total volume of the cylinder / 2

= 100.48 inches / 2

= 50.24 cubic inches

volume of medication in the cup = 50.24 cubic inches

7 0
3 years ago
-5(2x − 2) - (7x + 8)<br> What expression is equivalent to this
shusha [124]

Answer:

Step-by-step explanation:

first step is to multiply

-5(2x-2)=-10x+10

-10x+10-7x-8=-17x+2

5 0
2 years ago
Read 2 more answers
Given a ≠ ± b and (a^2-b^2) / (a+b)=12 find a-b.
grigory [225]

Answer:

\sqrt{12a  \:  +  \: 12b \:  -  \: 2ab \:  +  \: 2b {}^{2} }

Step-by-step explanation:

(a²-b²) / (a+b) = 12

a² - b² = 12(a+b)

(a-b)² + 2ab - 2b² = 12a + 12b

(a-b)² = 12a + 12b - 2ab + 2b²

a - b =

\sqrt{12a \:  + 12b \:  - 2ab \:  +  \: 2b {}^{2} }

5 0
2 years ago
Woodland Mound Park sells annual visitor passes for $12.50. Last year the park raised $53,500 in annual visitor pass sales. How
ra1l [238]

Answer:

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Step-by-step explanation:

The unknown we are looking for the number of passes that were sold.  We don't know how MANY were sold, but we do know that the cost of ONE is 12.50.  We represent the number of passes at that price per pass as

12.50x

We also know that money earned from the sale of this unknown number of passes came to 53,500.  Our equation then becomes

12.50x = 53,500

Solving for x, we divide both sides by 12.50 to get that

x = 4280

3 0
3 years ago
to decide which tin of coffee is better value for money, calculate the price per gram of a 250g tin of coffee for R29.49 and a 7
gogolik [260]

Answer:

250g tin

Step-by-step explanation:

250g tin is 8.48g per R

750g tin is 10.77g per R

3 0
2 years ago
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