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Anastaziya [24]
3 years ago
7

I need help with this geometry thing.

Mathematics
1 answer:
QveST [7]3 years ago
5 0

a and b and c and e are true

d is false

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The length of a rectangle is 8 feet longer than the width. If the perimeter is 80 feet, find the length and width of the rectang
Klio2033 [76]

perimeter = 2L + 2W

 L=8+w

perimeter = 2(8+w) +2w

80 =16+2w+2w

80 = 16 +4w

64 =4w

w=64/4 = 16

 l=16+8 =24

 length = 24 feet

width = 16 feet


 check 2(24) +2(16) = 48 + 32 = 80

7 0
2 years ago
The area of a circle is 30.8m2.<br> Find the length of the diameter rounded to 1 DP.
andre [41]
Area of a circle = pi • r^2

We need to isolate for r.

A/pi = r^2

r = sqrt(A/pi)

r = sqrt(30.8/pi)

r = 3.1311251164

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Diameter = 6.26225023

Diameter = 6.3 m
8 0
2 years ago
Why is this a parallelogram?
Aleks [24]

Answer:

b both pairs of opposite sides are parallel

7 0
3 years ago
Read 2 more answers
Which relation is also a function?
slavikrds [6]

Answer:

Hi san, A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. For example, consider the following sets X and Y.

This should help you a bit.

6 0
3 years ago
Candice buys 2/8 of a container of roasted peanuts. Alan buys 2/3 of a container. Both containers are the same size. Candice say
xz_007 [3.2K]

Since my name is in this question, I'll answer it :)

Answer:

Yes, she's right.

Step-by-step explanation:

2/8 is simplified to 1/4. Between 1 and 1/2, it is 1/4. So yes, I (Candice) was right. :)

5 0
2 years ago
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