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yan [13]
3 years ago
15

Worth 10 points on chapter 5 test

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

What is the value of x.

If you know the value of x

then,

perimeter= x+12+7.71

and

if this traingle is an equilateral triangle

then,

area =½×7.71×x

In this all process you need to find x then all will be easy

Hope it helped you

If not then I am sorry for that

Bye

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Kimberly wants to grow grass in her backyard. She is buying grass seed to plant and needs to determine the area of her backyard.
ANTONII [103]

Answer:

B) Foot

Step-by-step explanation:

6 0
2 years ago
One day a store sold 21 sweatshirts. white ones cost​ $9.95 and yellow ones cost $ 11.50. in​ all, ​$235.30 worth of sweatshirts
FromTheMoon [43]
For this problem you have yo set up two equations.

White shirts = w Yellow shirts = y

1st: w + y = 21
2nd: 9.95w + 11.50y = 235.30

Now we're going to do system of equations using substitution.

If w + y = 21, then y = 21 - w
If y = 21 - w, then you can substitute this in the second equation for y.

9.95w + 11.50(21 - w) = 235.30
9.95w + 241.5 - 11.50w = 235.30
-1.55w + 241.5 = 235.30
-1.55w = -6.2
w = 4, so 4 whites shirt were sold.

Now I'm finding out how many yellow shirts were sold using one of the two equations at the top.

w + y = 21
4 + y = 21
y = 17

So 17 yellow shirts were sold and 4 white shirts were sold.
5 0
3 years ago
What is the area of a rectangle with a length of (x - 5) and width of (x + 8)?
dlinn [17]

Answer:

a = x² + 3x - 40

Step-by-step explanation:

a = l * w

a = (x - 5)(x + 8)

a = x(x + 8) - 5(x + 8)

a = (x² + 8x) + (- 5x - 40)

a = x² + 3x - 40

3 0
3 years ago
Read 2 more answers
In the following diagram, BC is parallel to DE 30 POINTS
Romashka-Z-Leto [24]

Answer:

29

Step-by-step explanation:

In parallel lines, allied angles have a sum of 180.

Therefore, angle CBD + angle EAB = 180

Therefore, 42 + 109 + x = 180

x + 151 = 180

x          = 29

Hope it helps and if it does, please mark me brainliest...

4 0
3 years ago
Read 2 more answers
WILL MARK BRAINLEIST!! name all segments skew to bc
nordsb [41]

Answer ==== GF, HI, FA, DI

Step-by-step explanation

As long as they aren't on the same plane or aren't touching your given segment, they are skew.

6 0
3 years ago
Read 2 more answers
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