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3 years ago

Who has 4 projects due Friday and hasn't started but you should be

Mathematics

1 answer:

Lina20 [59]3 years ago

4 0

Answer:

Oof not me but thanks for the free points lol

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Please Help! Brainliest Answer!

Alla [95]

Answer:

Step-by-step explanation:

Using sine rule

a/sin A ＝b/sin B

8/sin90° ＝ x/sin60°

8 * sin60° ＝ x

x ＝

$4 \sqrt{3}$

6 0

3 years ago

(1 pt) In a study of red/green color blindness, 950 men and 2050 women are randomly selected and tested. Among the men, 89 have

Ivahew [28]

Answer: (0.066,0.116)

Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

The proportion of women have red/green color blindness = $p_2=\dfrac{6}{2050}\approx0.003$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

Now, the 99% confidence interval for the difference between the color blindness rates of men and women will be:-

$(0.094-0.003)\pm (2.576)\sqrt{\dfrac{0.094(1-0.094)}{950}+\dfrac{0.003(1-0.003)}{2050}}\approx0.091\pm 0.025\\\\=(0.09-0.025,0.09+0.025)=(0.066,\ 0.116)$

Hence, the 99% confidence interval for the difference between the color blindness rates of men and women= (0.066,0.116)

4 0

4 years ago

Find the complement of the angle shown

Archy [21]

Supplementary = 180°
Complementary = 90°

180° - 52° = 128°
90° - 52° = 38°

Hope this Helps!!

6 0

3 years ago

Find the slope of the line that passes through the pair of points.

d1i1m1o1n [39]

Answer:

-7/5

Step-by-step explanation:

8 0

3 years ago

What value of a makes the equation true 30/45=6/a

rusak2 [61]

As you know 30/45 = 6/9
So a = 9 makes the equation true

5 0

3 years ago