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3 years ago

Explain why the exponents cannot be added in the product 12^3 and 11^3

Mathematics

1 answer:

GrogVix [38]3 years ago

4 0

Because bases are different.

a^n · a^m = a^(n+m)

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I need help what’s the answer ?

pogonyaev

Answer:

x = 30

Step-by-step explanation:

Using the sine ratio in the right triangle

sinx = $\frac{opposite}{hypotenuse}$ = $\frac{2.5}{5}$ = $\frac{1}{2}$ , then

x = $sin^{-1}$ ( $\frac{1}{2}$ ) = 30

4 0

3 years ago

Marta walked 2 miles in 28 minutes. at that rate how far can she walk in 70 minutes

soldi70 [24.7K]

28 mins = 2 miles

1 min = 2 ÷ 28 = 1/14 miles

70 mins = 1/14 x 70 = 5 miles

Answer: 5 miles

7 0

3 years ago

Austin has 125% more books than his younger sister. If his sister has 24 books, how many books does he have? Write your proporti

Julli [10]

Answer:

30 books

Step-by-step explanation:

125%= 1.25

1.25 times 24= 30

6 0

3 years ago

Read 2 more answers

Write the expression in repeated multiplication form. Then write the expression as a power. (-8)^3*(-8)^4 The expression in repe

Makovka662 [10]

Given:

The expression is

$(-8)^3\cdot (-8)^4$

To find:

The expression in repeated multiplication form and then write the expression as a power.

Solution:

We have,

$(-8)^3\cdot (-8)^4$

The repeated multiplication form of this expression is

$=[(-8)\cdot (-8)\cdot (-8)]\cdot [(-8)\cdot (-8)\cdot (-8)\cdot (-8)]$

$=(-8)\cdot (-8)\cdot (-8)\cdot (-8)\cdot (-8)\cdot (-8)\cdot (-8)$

Clearly, (-8) is multiplied seven times by itself. So,

$=(-8)^7$

Therefore, the repeated multiplication form of the given expression is $(-8)\cdot (-8)\cdot (-8)\cdot (-8)\cdot (-8)\cdot (-8)\cdot (-8)$ and the expression as single power is $(-8)^7$ .

7 0

2 years ago

six coins in your pocket: 5 cents, 10 cents, 20 cents, 50 cents, $1, $2. How many different sums of money can you make?

TEA [102]

Answer:

You can make 64 different sums (which includes a sum of $0 using none of the coins).

Step-by-step explanation:

The number of sums you can make is equal to:

⁶C₀ + ⁶C₁ + ⁶C₂ + ⁶C₃ + ⁶C₄ + ⁶C₅ +⁶C₆ = 1 + 6 + 15 + 20 + 15 + 6 + 1 = 64

3 0

3 years ago