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dlinn [17]
3 years ago
7

Help me out plzzzzzzzz​

Mathematics
1 answer:
Furkat [3]3 years ago
5 0

Answer:

d

Step-by-step explanation:

5x -2

Answer choices:

a. 2-5x

b. 3-5 +2x

c. 5x-2x

d. 2x-2+3x

a.

2-5x can be rewritten as -5x+2, which is not the same as 5x-2

b. 3-5 + 2x can be rewritten as -2 + 2x or 2x-2 which is not equivalent to 5x-2

c. 5x-2x is 3x

3x doesn't equal 5x-2

d. 2x+3x-2 = 5x-2

This expression is equivalent to 5x-2

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The perimeter of (the distance around) ABCD is 66, and DC is twice as long as CB. How long is AB?
ArbitrLikvidat [17]

Answer:

AB=22\ units

Step-by-step explanation:

we know that

In this problem ABCD is a rectangle

so

DC=AB

BC=AD

Let

BC ---> the length of rectangle

DC ---> the width of rectangle

we know that

The perimeter of rectangle is equal to

P=2(BC+DC)

we have

P=66\ units

so

66=2(BC+DC)

simplify

33=BC+DC ----> equation A

DC=2BC ----> equation B

substitute equation B in equation A

33=BC+2BC

Solve for BC

Combine like terms

33=3BC

Divide by 3 both sides

BC=11\ units

<em>Find the value of DC</em>

DC=2BC ----> DC=2(11)=22\ units

Remember that

DC=AB

therefore

AB=22\ units

3 0
3 years ago
What is the opposite of the opposite of -7
Alex Ar [27]
The answer is -7

no to sure though
5 0
3 years ago
Read 2 more answers
A ball is thrown from an initial height of 1 meter with an initial upward velocity of 13 m/s. The ball's height h (in meters) af
Lunna [17]
Here the answer is: 0.76 and 1.84

I hope I don't have to explain it again.






4 0
3 years ago
Three brothers have ages that are consecutive odd integers. The difference between the age of the oldest and twice the age of th
Genrish500 [490]

N, N+2, and N + 4 are the ages


(N + 4) - (2N) = (N + 2) -24


4 - N = N - 22


2N = 26

N = 13

The brothers are 13, 15, and 17 years old.

HOPE THIS HELPS!!

PLEASE GIVE ME BRAINLIEST!!

6 0
3 years ago
The daily recommended allowance of calcium for a sixth grader is 1,200 mg. One cup of
ExtremeBDS [4]

Answer: one cup of milk contains 300 mg of calcium

Step-by-step explanation:

25% of 1200 is 300

8 0
3 years ago
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