$\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{a^{-4}}{a^{-6}}\implies a^{-4}\cdot a^6\implies a^{-4+6}\implies a^2$

7 0

3 years ago

During an alpine skiing event, the times of four skiers were listed below. Time is measured in seconds.

Salsk061 [2.6K]

Skier c's time would be different

6 0

3 years ago

Joshua delivered 30 hives to the local fruit farm. If the farmer has paid to use 5% of the total number of Joshua's hives, how m

IrinaVladis [17]

Joshua delivered 30 hives to the local fruit farm.

If the farmer has paid to use 5% of the total number of Joshua's hives.

So 30 hives is 5% of the total number of hives.

5% of hives = 30

1% of hives = 30 ÷ 5 = 6

100% of hives = 6 × 100 = 600

Thus, Joshua had 600 hives before selling.

Now, he has = 600 - 30 = 570 hives.

Now, Joshua has 570 hives.

4 0

3 years ago

Read 2 more answers

Winnona took five chapter tests. The table shows her scores. Test 1 2 3 4 5 Score 95 85 96 97 74 If Winnona retakes Test 5, what

mestny [16]

Answer:

The answer is A.

Step-by-step explanation:

Given that Winnona took 5 tests and retake Test 5. So the mean score for this question is Total number of scores divide by Total number of tests is equals to 87 :

Let Test 5's score be x,

Let mean score be 87,

$\frac{95 + 85 + 96 + 97 + x}{5} = 87$

Next you have to solve the value of x :

$373 + x = 87 \times 5 \\ 373 + x = 435 \\ 373 + x - 373 = 435 - 373 \\ x = 62 \: \: \: scores$

5 0

3 years ago