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3 years ago

13

Craig practiced his drum 4 hours more than nicki . Nicki practiced his drums 5 hours less than marshal marshal practiced his dru

ms 16 hours how many hours did craig practiced

1 answer:

abruzzese [7]3 years ago

8 0

Craig practiced 15 hours

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What is 3x²-2 if x is -3

Lapatulllka [165]

Answer:

Step-by-step explanation:

3x² -2 =3*(-3)²-2=3*9 - 2

= 27 - 2

= 25

8 0

3 years ago

What is the value of y in the solution to the system of equations?

LUCKY_DIMON [66]

To solve for y you have to simplify both sides of the equation, then isolating the variable which equals to...

y = -4x/3 + 4

Next, you have to move all terms that don't contain y to the right side and solve.

y = 10 + 2x/3

____

Now we solve the first variable in one of the equations, then substitute the result into the other equation.

Point Form: (-3,8)

Equation Form: x = -3, y = 8

____

Leaving it to be the only choice which is 'D.) 8', I hope this helps, as always. I wish you the best of luck and I hope you have a nice day..

8 0

4 years ago

<img src="https://tex.z-dn.net/?f=%282%20%5Csqrt%7B3%20%2B%203%20%5Csqrt%7B2%29%20%7B%3F%7D%5E%7B2%7D%20%7D%20%7D%20" id="TexFor

AlladinOne [14]

Answer:

$\left(2\:\sqrt{3\:+\:3\:\sqrt{2}\:\:}\:\right)\:^2=4(3+3\sqrt{2})$

Step-by-step explanation:

Considering the radical expression

$\left(2\:\sqrt{3\:+\:3\:\sqrt{2}\:\:}\:\right)\:^2$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a\cdot \:b\right)^n=a^nb^n$

$=2^2\left(\sqrt{3+3\sqrt{2}}\right)^2.....[A]$

Simplifying

$\left(\sqrt{3+3\sqrt{2}}\right)^2$

$\mathrm{Apply\:radical\:rule}:\quad \sqrt{a}=a^{\frac{1}{2}}$

$=\left(\left(3+3\sqrt{2}\right)^{\frac{1}{2}}\right)^2$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc}$

$=\left(3+3\sqrt{2}\right)^{\frac{1}{2}\cdot \:2}$

$=3+3\sqrt{2}$ As $\frac{1}{2}\cdot \:2=1$

So, putting $3+3\sqrt{2}$ into Equation [A]

$=2^2\left(\sqrt{3+3\sqrt{2}}\right)^2.....[A]$

As

$\left(\sqrt{3+3\sqrt{2}}\right)^2=3+3\sqrt{2}$

So, Equation [A] becomes

$=2^{2}(3+3\sqrt{2})$

$=4(3+3\sqrt{2})$

Therefore,

$\left(2\:\sqrt{3\:+\:3\:\sqrt{2}\:\:}\:\right)\:^2=4(3+3\sqrt{2})$

Keywords: radical expression

Learn more radical expression from brainly.com/question/11624221

#learnwithBrainly

3 0

3 years ago

What do you notice about this diagram?<br> What does the diagram make you wonder?<br> Hhhhh

Ilya [14]

Answer:

wat

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIEST!

podryga [215]

Answer:

a) see the attached

b) -0.1213

c) 0.0653

d) 0.0171

e) EOC

Step-by-step explanation:

a) The graph shows the mean and the values at ±1, ±2, and ±3 standard deviations from the mean. Each mark differs from the one below by the value of the standard deviation, 36.18. The central mark is the mean, 704.39.

__

b) As you know, the z-score is computed from ...

z = (x -µ)/σ

z = (700 -704.39)/36.18

z = -0.1213

__

c) Same formula, different numbers.

z = (22 -21.65)/5.36

z = 0.0653

__

d) Likewise, ...

z = (530 -528)/117

z = 0.0171

__

e) EOC would be the easiest. The required score has the lowest z-value, so the applicant only needs to do better than a smaller number of peers.

Actually, the answer to this depends on <em>why</em> the thresholds vary. If we assume that the threshold on each test is set appropriate to the desired knowledge and ability, the test-taker would find his knowledge and ability allows him to do better on the ACT than on the other tests.

On the other hand, if the scores are representative of test taker populations all with the same knowledge and ability, less of that knowledge is required to achieve the necessary score on the EOC.

5 0

3 years ago