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aliina [53]
2 years ago
6

Write the following expression without negative exponents and without parentheses. -5x^-2

Mathematics
1 answer:
Kobotan [32]2 years ago
4 0

Answer:

-5/x^2

Step-by-step explanation:

-5/x^2

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A 32​-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first​ piece, and the third
Goshia [24]

Answer:

first piece = 1.88in

second piece= 3.76in

third piece = 26.32in

32 = f + s + t

1st piece = f

2nd piece = s

3rd piece = t

what we know:

s = 2f

t = 2(7f)

32 = f + 2f + 2(7f)

32 = 3f +14f

32 = 17f

f = 1.88

now sub in:

f = 1.88

s = 3.76

t = 26.32

when you add these together you get 31.96, when you round up you get 32 which is the original piece of steel.

8 0
2 years ago
Which expressions are equivalent to 1.5?
3241004551 [841]

Answer:

B and C

Step-by-step explanation:

We can just solve each to find which expressions are equal to 1.5.

A) 0.15 × 100 = 15

B) 15.0 ÷ 10 = 1.5

C) 0.15 × 10 = 1.5

D) 0.15 ÷ 10 = 0.015

E) 1.5 ÷ 100 = 0.015

From our results, we see that B and C are the only answers that equal 1.5.

6 0
2 years ago
What is -(2 a + 2 b) + (4 a +4 b​
Masja [62]

answer: 2a+3b

I really hope this helped

8 0
3 years ago
Read 2 more answers
What is the average rate of change of the function f(x)= 2^x - 3 from x= 4 and x= 6?
WITCHER [35]

aaaaaaaaaaaasasaasasasasaasasasasaaaasasasasas

7 0
3 years ago
What is the value of x in the figure below? In this diagram, △ABD~△CAD.
morpeh [17]

<u>Given</u>:

Given that the triangles ABD and CAD are similar.

The length of AB is 12.

The length of BD is x.

The length of AC is 27.

We need to determine the value of x.

<u>Value of x:</u>

Let us use the leg rule to determine the value of x.

Thus, we have;

\frac{BC}{AB}=\frac{AB}{BD}

Substituting the values, we get;

\frac{27}{12}=\frac{12}{x}

Cross multiplying, we get;

27x=12\times 12

27x=144

Dividing both sides by 27, we have;

x=\frac{16}{3}

Thus, the value of x is \frac{16}{3}

Hence, Option D is the correct answer.

7 0
2 years ago
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