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Goshia [24]
3 years ago
14

Needing help stuck on this.

Mathematics
1 answer:
Verdich [7]3 years ago
3 0

Answer:

71

Step-by-step explanat

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Will mark brainliest! Please help!
ValentinkaMS [17]

Answer:

The dimensions are:

3(2x+1) by (7x+5)

Step-by-step explanation:

The area of the rectangle is given as

A=42x^2+51x+15

The factored form of this quadratic trinomial gives the dimensions of the rectangle.

We factor 3 first to obtain;

A=3(14x^2+17x+5)

We split the middle term to get;

A=3(14x^2+10x+7x+5)

We factor within the parenthesis to get;

A=3(2x(7x+5)+1(7x+5))

We factor further to get;

A=3(2x+1)(7x+5)

The dimensions are:

3(2x+1) by (7x+5)

Then the perimeter will be

2(6x+3+7x+5)=26x+16\:\:\:\boxed{\sqrt{} }

4 0
3 years ago
A company that makes boxes finds that 3 out of 20 boxes are damaged. What percent of the boxes are damaged? ( I WILL GIVE BRAINL
noname [10]

Answer:

a.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A semicircular archway is built in front of a garden using 8 congruent granite tiles, as shown in the diagram. Find the area of
lianna [129]
In your question that ask to calculate the area of one of the tiles if a semicircular archway in the front of the garden is using 8 congruent granite tiles and the area of one of the tiles is 2.9ft ^2. I hope you are satisfied with my answer and feel free to ask for more. 
5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%20%7Bx%7D%5E%20%7B2%7D%20%20-%2029%20%3D%2052" id="TexFormula1" title=" {x}^ {2} - 29 =
AleksAgata [21]
X is equal to 9 and -9
4 0
3 years ago
i need help on math
dolphi86 [110]
X=2
2x-3=-x+3

add three to both sides
add 1x to each side
should be left with 3x=6
divide both sides by 3 to get x alone
your answer then is x=2
7 0
3 years ago
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