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BartSMP [9]
3 years ago
13

Which equation is equivalent to..

Mathematics
1 answer:
svet-max [94.6K]3 years ago
6 0

Answer:

D

Step-by-step explanation:

1/3)^{x} = \frac{1}{3^{x} } = 3^{-x}

and

27^{x+2} = (3^{3})^{x+2} = 3^{3(x+2)} = 3^{3x+6}

Hence expression D is equivalent

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A triangle has side lengths of 77 centimeters, 55 centimeters, and cc centimeters. enter a value to complete the inequality that
PtichkaEL [24]
The correct question is
A triangle has side lengths of 7 centimeters, 5 centimeters, and c centimeters. enter a value to complete the inequality that describes the possible values for c, the length of the third side of the triangle.

we know that
The sum of the lengths<span> of any two </span>sides<span> of a </span>triangle<span> must be greater than the </span>third side

If c is the smallest number, then

5 + c > 7
c > 2

If c is the largest number, then

5+7 > c
12 > c----------> c < 12

the answer is
The value of c must be  in the interval (2,12)


3 0
3 years ago
What is the best estimate of 45 percent of 76
marishachu [46]

Answer:

1/2(80)

Step-by-step explanation:

Well, 45% of 76 is 34.2

Which can be solved by converting 45% to .45 and then multiplied by 76

1/4(80) can be converted into .25*80 which is 20

1/5(80) can be converted into .20*80 which is 16

1/2(80) can be converted into .50*80 which is 40

1/9(80) can be converted into .11*80 which is 8.88

The closest one is 1/5(80) which solves the estimate,

5 0
3 years ago
Read 2 more answers
Add the rational expressions.7/2x(x+2)+x+3/x+2
Dmitrij [34]

Answer:

(7x^(3)+16x^(2)+4x+6)/(2x)

this is what i got idk if its correct though

Step-by-step explanation:

6 0
3 years ago
The sum of two numbers is 27. One number is seven less than the other. Find the numbers
Marat540 [252]

Answer:

17 and 10

Step-by-step explanation:

Write the problem as an equation.

a+b=27

a=b-7

Where a and b are the two numbers you are trying to find. You could use any variables. Then solve.

b+(b-7)=27      Sub (b-7) for a

2b-7=27          Group like terms

2b=34             Add 7 to both sides

b=17                 Divide both sides by 2.

Because b=17, a must be 10.

6 0
4 years ago
Janice caught three trout when she went fishing .one trout weighted 1.38 pounds ,and the second trout weighted 2.01 pounds,and t
Murrr4er [49]

Answer:

4.59

Explanation:

1.38 + 2.01 = 3.39

1.2 = 1.20

3.39 + 1.20 = 4.59

8 0
3 years ago
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