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3 years ago

8

Select the correct answer.

1 answer:

Igoryamba3 years ago

5 0

C i think if I’m not mistaken

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Drag values to complete each equation.

kherson [118]

Answer:

$9^{-7}$ and $9^{-2}$

Step-by-step explanation:

using the rules of exponents

• $(a^m)^{n}$ = $a^{mn}$

• $a^{m}$ × $a^{n}$ = $a^{(m+n)}$

• $\frac{a^{m} }{a^{n} }$ = $a^{(m-n)}$

given ( $9^{5}$ × $9^{-9}$ ) / $9^{3}$

= $\frac{9^{5+(-9)} }{9^{3} }$ = $\frac{9^{-4} }{9^{3} }$ = $9^{-4-3}$ = $9^{-7}$

given $(9^4)^{3}$ × $9^{-14}$

= $9^{12}$ × $9^{-14}$

= $9^{12+(-14)}$ = $9^{-2}$

8 0

4 years ago

Read 2 more answers

Lily wants to buy a cow but can't afford the $25 it costs. Later in the year it is at an affordable $15 and Lily can buy it. Wha

hodyreva [135]

Answer:

There was 60% discount on the cow.

Step-by-step explanation:

Cost of cow = $25

Latest price = $15

Discount can be calculated by dividing the latest price by the original price and multiplying by 100.

Thus,

percentage discount = 15/25 × 100

= 0.6 × 100

= 60%

Thus, there was 60% discount on the cow.

3 0

3 years ago

$12.00 for 48 cans Find the unit rate.

Taya2010 [7]

Answer:

0.25¢

Step-by-step explanation:

12.00÷48=0.25 or

1200÷48=25 then move decimal 2 places to the left.

5 0

3 years ago

Read 2 more answers

Lexi made 14 sandwiches for a group picnic. The number of ham sandwiches she made was 4 less than the twice the number of turkey

shutvik [7]

x = # of ham sandwiches

14-x = # of turkey sandwiches ( as Lexi made 14 sandwiches)

as the question said that the number of ha sandwiches are 4 less than twice number of turkey sandwiches,

x = 2 * (14-x) - 4 = 24 - 2x

3x=24

x = 8

the number of ham sandwiches is 8, and the number of turkey sandwiches is 14-8=6

6 0

3 years ago

Simplify this expression.

Margarita [4]

Answer

$\frac{ 6 {y}^{4} {w}^{2} }{{x}}$

Step-by-step Explanation

$\huge \frac{12 {x}^{3} {y}^{6} {w}^{5} }{ 2{x}^{4} {y}^{2} {w}^{3} } \\ \\ \huge= \frac{6 {x}^{3} {y}^{6} {w}^{5} }{{x}^{4} {y}^{2} {w}^{3} } \\ \\ \huge = 6 {x}^{3 - 4} {y}^{6 - 2} {w}^{5 - 3} \\ \\ \huge= 6 {x}^{ - 1} {y}^{4} {w}^{2} \\ \\ \huge = \frac{ 6 {y}^{4} {w}^{2} }{{x}^{1}} \\ \\ \huge = \frac{ 6 {y}^{4} {w}^{2} }{{x}}$

7 0

4 years ago

Read 2 more answers