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aleksandrvk [35]
3 years ago
5

Plz help me with #43 #44 #46 plz help!!!!!!

Mathematics
1 answer:
Murljashka [212]3 years ago
4 0
#43 is 3 Slices because 12 divided by 4=3

#44 lets work out a bit more. She Practiced 4 hours and 30 minutes each week. There are typically 4 weeks in a month, so we multiply 4 times 4 which is 16. But this isn't our answer because we have the extra half hour. We multiply the half hours times 4, and we have and extra 2 hours on our hands. So this means she Practiced 18 hours each month.

#46 First, You convert everything to inches. 

2' 8'=24+8=32 inches.

Divide that 32 in half, and you get 16. 16 inches=16 times 12 =192.

192 over 32 =6.

So in total, 6 boards is your answer :)
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The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female consume
AfilCa [17]

Answer:

Yes. The male and female consumers differ in the amounts they spend.

Step-by-step explanation:

We can express the null and alternative hypothesis as:

H_0: \mu_m=\mu_w\\\\H_1:  \mu_m\neq\mu_w

It is assumed a significance level of 0.05.

The standard deviation of the difference of means is calculated as:

s=\sqrt{\frac{s_m^2}{n_m} +\frac{s_w^2}{n_w} } =\sqrt{\frac{35^2}{40} +\frac{20^2}{30} } =\sqrt{30.625+13.333} =\sqrt{43.958} =6.63

The test statistic is

t=\frac{(M_m-M_w)-0}{s}=\frac{135.67-68.64}{6.63}=10.11

The degrees of freedom are:

df=n_1+n_2-2=40+30-2=68

The P-value for t=10.11 is P=0, so it is smaller than the significance level. The null hypothesis is rejected.

We can conclude that male and female consumers differ in the amounts they spend.

5 0
4 years ago
BRAINIEST ANSWER PLEASE HELP OFFERING 30 POINTS!!!!
Anastasy [175]

Answer:

The answer is 14 quarters and six dimes

Step-by-step explanation:

-.1(D+Q=20)

.10D+.25Q=4.10    -.1D-.1Q=-2

                             .1D+.25Q=4.10

------------------------------------------------------

                            .15Q=2.10/.15(both sides)

Q=14 which leaves you needing 60 more cents so 6 dimes

3 0
3 years ago
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Rudik [331]

Answer

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Step-by-step explanation:

6 0
3 years ago
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Hi! So I have the foil method, but can I have help solving this equation using the distribution method? Also, explain the differ
g100num [7]

Answer:interesting question

Step-by-step explanation:

well actually the FOIL method came from And is the distbutive property. So I think you are fine if you use foil as you “distributing” iyk what i mean.

remember Foil is only used in multiplying binomials like your example.

3 0
4 years ago
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What is the image of (1,0) after a counterclockwise rotation of 60 degrees?
Anestetic [448]

Answer:

\vec s = \left(\frac{1}{2},\frac{\sqrt{3}}{2}  \right)

Step-by-step explanation:

The coordinate has the following polar form:

\vec r = (1, 0^{\circ})

The image of the coordinate rotated counterclockwise 60° is:

\vec s = (1, 60^{\circ})

Its equivalent form in rectangular coordinates is:

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\vec s = \left(\frac{1}{2},\frac{\sqrt{3}}{2}  \right)

3 0
3 years ago
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