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3 years ago

which of these expressions is equivalent to 8 × (a 1)? a a × (8 1) b 8 (a × 1) c (8 × a) 1 d 8 × a 8 × 1

Mathematics

1 answer:

liberstina [14]3 years ago

6 0

8 x (a + 1) = (8 x a) + (8 x 1)

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Which of the following is the simplified form of the seventh root of x times the seventh root of x times the seventh root of x ?

Studentka2010 [4]

When multiplying numbers of the same base , we add the powers.
Example:
2^2 * 2^3 = 2^(2+3) = 2^5

For the givens:
The seventh root of x can be written as x^(1/7)
Now, we need to multiply x^(1/7) by x^(1/7) by x^(1/7)
These numbers have the same base which is "x", therefore, we will just add the power.
This means that:
x^(1/7) * x^(1/7) * x^(1/7) = x^(1/7 + 1/7 + 1/7) = x^(3/7)

Therefore, the correct choice is the first one: x^(3/7)

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3 years ago

Which Of the following could not be points on the units circle ?

Serjik [45]

answer A , that could not be point

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2 years ago

Read 2 more answers

Ubehebe crater in Death Vally has a diameter of a little more than 1/2 mile. If latisha walks around its rim at a rate of 2 mile

Sergeu [11.5K]

$l=2 \pi r$
r=0.25 miles
l=2× $\pi$ ×0.25
=0.5 × 3.14
=1.57

120(minutes)÷2(miles)=60(minutes per mile)
60×1.57=94.2 minutes

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3 years ago

Write a multiplication equation that represents the question: how many 3/8 are in 8?

goldenfox [79]

Answer:

Step-by-step explanation:

$\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8}$

$\frac{3}{8}$ × 8

= 3

In algebra:

$\frac{3}{8}$ × y = 3

y = 3 ÷ $\frac{3}{8}$

y = 8

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2 years ago

A chemist needs 2,220 ml of potassium chloride to complete an experiment. She has 2 L. How many more liters does she need?

DerKrebs [107]

Answer:

0.220 L

Step-by-step explanation:

One liter is 1000 mL, so 2,220 mL is 2.220 L. Subtracting the 2 L on hand gives the additional amount required:

2.220 L - 2 L = 0.220 L

_____

The nice thing about metric units is that conversion factors are often powers of 10, so only movement of the decimal point is required. It can be worthwhile to become familiar with the SI prefixes.

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2 years ago