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3 years ago

How would you write 8^5 as a multiplication expression? A. 8 × 5 B. 8 × 8 × 8 × 8 × 8 C. 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5

Mathematics

2 answers:

Helga [31]3 years ago

7 0

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$\diamond\:\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}\:\diamond$

✶ How would you write $\bold{8^5}$ as a multiplication expression $\textit{?}$

$\diamond\large\blue\textsf{\textbf{\underline{\underline{Answer and How to solve:-}}}}\diamond$

✶ The exponent indicates how many times a certain number was multiplied by itself.

✶ In this case we have $\bold{8^5}$ , so 8 was multiplied by itself five times.

So we conclude that $\bold{8^5}$ written as a multiplication expression looks as follows:-

$\bigcirc\!\!\!\!\checkmark$ 8•8•8•8•8

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Neporo4naja [7]3 years ago

4 0

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

if we ever face a number written in the form of $\underline{x^{n}}$ where x denotes the base and n denotes the exponent or power , we can expand it in the following way -

$x^{n} = x \times x \times x \times.... x ( upto\: " n " \: times )$

therefore ,

$8 {}^{5} = 8 \times 8 \times 8 \times 8 \times 8$

option ( B )

hope helpful -,-

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Vikentia [17]

Multiply x123 by x2 by adding the exponents x125

4 0

3 years ago

Read 2 more answers

A recently retired couple has $150,000 to invest to supplement their social security. The invested some of it in an account that

kumpel [21]

The couple invests $9,000 in the account that paid 10% simple interest and $6,000 in the account that paid 5% simple interest.

Step-by-step explanation:

Step 1; Assume x is the amount of money put into the account that pays 10% simple interest and y the amount of money put into the account that pays 5% simple interest. It is given that the couple invests $150,000 in total. so

x + y = 150,000, take this as equation 1.

So x is the amount of money put into the account that gives 10% of x back and y is the amount of money into the account that gives 5% of y back. Both accounts give back $12,000. So,

0.10x + 0.05y = 12,000, take this as equation 2.

Step 2; Now we solve these equations.

Equation 1 can also be, y = 150,000 - x, take this as equation 3.

Substitute equation 3 in 2,

0.10x + 0.05(150,000 - x) = 12,000,

0.10x + 7,500 - 0.05x = 12,000,

Taking the known values to the right and keeping the unknown x values on the right, we get

0.05x = 12,000 - 7,500,

0.05x = 4,500.

So x = 90,000

Substitute this is equation 1,

x + y = 150,000, y = 150,000 - x, y = 150,000 - 90,000 = 60,000.

So the old couple invests $90,000 into the account that gives 10% of simple interest and $60,000 into the account that gives 5% simple interest.

3 0

3 years ago

You do not need to flip the inequality sign when solving the inequality -3 t + 7 ≥ 9.

NemiM [27]

For this case we must resolve the following inequality:

$-3t + 7 \geq9$

Subtracting 7 from both sides of the inequality we have:

$-3t \geq9-7\\-3t \geq2$

Dividing by 3 to both sides of the inequality we have:

$-t \geq \frac {2} {3}$

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

$t \leq- \frac {2} {3}$

Thus, it is observed that to solve the inequality it is necessary to change the meaning of it.

ANswer:

False. It is necessary to change the sense of inequality

3 0

4 years ago

Select the correct answer from each drop-down menu.

marusya05 [52]

Answer:

(1) If the GCD of 5 and 12 is 1, then they are co-prime.

(2) The sum of 5 and 12 is 7 if and only if 5 is a negative integer.

Step-by-step explanation:

(1)

The GCD (greatest common divisor) of two or more numbers, which are not all equal to zero, is the largest positive integer number which divides each of the numbers.

If the GCD of two numbers is 1, then the two numbers are known as coprime or relatively prime or mutually prime.

(2)

The sum of 5 and 12 is 7 if and only if, the number 5 is a negative integer, i.e.

-5 + 12 = 7

6 0

3 years ago

a farmer examinea sample of 25 egg cartons and finds three cracked eggs whast the best predictions of the number of cartons with

Eddi Din [679]

$4 x 5 = 20 x 3 
$

I think

4 0

3 years ago