Ask question

Ask question

All categories

4 years ago

15

Jake had soccer practice for 2 hours last month. Jake practiced 8 times more this month . How many hours did Jake practice this

month?

1 answer:

Alja [10]4 years ago

3 0

Answer:

16 Hours your welcome

You might be interested in

Prove the divisbility of the following numbers.

Anastaziya [24]

Answer:

3^16

Step-by-step explanation:

12^8 * 9^12

Rewrite 12 as 3*4 and 9 as 3*3

(3*4)^8 * (3*3)^12

We know that (ab)^c = a^c * b^c

3^8 4^8 3^12 3^12

We can write 4 as 2^2

3^8 2^2^8 3^12 3^12

We know a^b^c = a^(b*c)

3^8 2^(2*8) 3^12 3^12

3^8 2^(16) 3^12 3^12

We also know that a^b *a^c *a^d = a^(b+c+d)

2^(16) 3^8 3^12 3^12

2^(16) 3^(8+12+12)

2^16 3^(32)

But we need 6 ^16 so we will need a 3^16 3^32 = 3^16 * ^16 (16+16=32)

2^16 *3^16 *3^16

Remember a^b*c^b = (ac)^b

(2*3)^16 3^16

6^16 3^16

7 0

3 years ago

PLEASE HELP IF YOU ARE GOOD AT MATH!!!

polet [3.4K]

If we double the costs, then we are going to stretch the graph vertically (B). Here is why. If the cost was $6 in 2010 then it doubles in 2011 the new cost would be $12 for the same amount of refrigerators in 2010. Thus the stretch vertically

6 0

4 years ago

A physiological psychologist has performed an experiment to determine if a particular drug, smartozine, affects maze learning in

Elis [28]

Answer:

The critical value of F for this situation is 2.975.

Step-by-step explanation:

A test is being performed to determine if a particular drug, smartozine, affects maze learning in rats.

The groups are divided as follows:

Three groups of 8 rats each are injected with one of three different doses of smartozine.
The fourth group of 6 rats is injected with a saline solution as a control.

So, there were in total <em>k</em> = 4 groups with <em>n</em> = 30 rats.

The significance level of the test is, <em>α</em> = 0.05.

Compute the critical value of <em>F</em> as follows:

$F_{\alpha, (k-1, n-k)}=F_{0.05, (4-1, 30-4)}=F_{0.05, (3,26)}=2.975$

*Use the <em>F</em>-table.

Thus, the critical value of F for this situation is 2.975.

5 0

3 years ago

Find the sum.<br> (5-21) + (-7+81)

sergij07 [2.7K]

58

First solve what is inside the parentheses (PEMDAS)

(5-21)+(-7+81)
(-16)+(74)
Add
58

Hope this helps! :)

6 0

3 years ago

Read 2 more answers

Solve s=πr^2+πrl for l

NemiM [27]

Start with

$S = \pi r^2 + \pi r l$

Subtract $\pi r^2$ from both sides:

$S - \pi r^2=\pi r l$

Divide both sides by $\pi r$

$\dfrac{S-\pi r^2}{\pi r}=l$

And thus we solved the expression for l:

$l=\dfrac{S-\pi r^2}{\pi r}$

5 0

3 years ago