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2 years ago

Pls help me ‍♀️‍♀️‍♀️

Mathematics

2 answers:

garri49 [273]2 years ago

7 0

The answer is 4 uwu hope it helps

Sergio039 [100]2 years ago

4 0

Answer:

x=-4 :D yw

Step-by-step explanation:

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Solve for x. 7x−9<12 or 14x+8>11

Vitek1552 [10]

Answer:

For 7x-9<12, the answer is x<3

For 14x+8>11, the answer is x>3/14

Step-by-step explanation: Isolate the variables by dividing each side by factors that do not contain the variable.

I hope this helps you out! :)

4 0

2 years ago

In circle M with m<LMN = 150 and LM = 5 units find area of sector LMN. Round to the nearest hundredth.

Jobisdone [24]

Answer:

Im not sure if this is correct

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2 years ago

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.

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3 years ago

What is the answer to /4= 28; = 116

exis [7]

Answer:

x = 116?

Step-by-step explanation:

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2 years ago

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2 years ago