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3 years ago

Which expression is equivalent to 5^3?

Mathematics

1 answer:

AleksAgata [21]3 years ago

3 0

Answer:

C and D

Step-by-step explanation:

5^3 - 5^0 = 125 - 1 = 124, so it's not A

5^12 / 5^4 = 5^(12-4) = 5^8, so it's not B

5^7 * 5^-4 = 5^(7+(-4)) = 5^3, so it can be C

5^0 * 5^3 = 5^(0+3) = 5^3, so it can be D

5 + 5^2 = 5 + 25 = 30, so it can't be E

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Triangle ABC is a scaled copy of triangle DEF. Side AB measures 12

Dima020 [189]

Answer:

1. The scale factor here is 1.5

2. The scale factor here is 2/3

Step-by-step explanation:

Here, we shall be dealing with scales of triangles.

we have two triangles;

ABC and DEF

longest sides are in the ratio;

12 : 8

1. What scale factor translates DEF to ABC?

The ratio of the length can be beaten down to 3:2

So therefore, we can see that by multiplying the sides of of DEF by 1.5, we can arrive at the sides of ABC

So the scale factor here is 1.5

2. This is like the other way round of what we have above.

By multiplying the sides of ABC by 2/3, we shall have the sides of DEF

4 0

3 years ago

Please help me out with this!!

galina1969 [7]

Answer:

see explanation

Step-by-step explanation:

Given

x + $\frac{1}{2}$ ≤ - 3 or x - 3 > - 2

Solve the left and right inequalities separately, that is

x + $\frac{1}{2}$ ≤ - 3 ( isolate x by subtracting $\frac{1}{2}$ from both sides )

x ≤ - 3 - $\frac{1}{2}$ , that is

x ≤ - $\frac{6}{2}$ - $\frac{1}{2}$ , thus

x ≤ - $\frac{7}{2}$

x - 3 > - 2 ( isolate x by adding 3 to both sides )

x > 1

Solution is

x ≤ - $\frac{7}{2}$ or x > 1

7 0

3 years ago

Which set of three angles could represent the interior angles of a triangle?

Flauer [41]

Answer:

A. 19,70,91

Step-by-step explanation:

Interior angle =180

19+70+91=180

6 0

3 years ago

Read 2 more answers

Given f(x)=10(3−x)+6, what is the value of f(−1)?

Ber [7]

Answer: 46

Step-by-step explanation:

10 (3 +1) + 6

30 + 10 + 6

5 0

3 years ago

F(x)=7x^2-8+9x^4÷x+2

kifflom [539]

Im pretty sure tge answers -1.68426

4 0

3 years ago