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3 years ago

Given that slope = -1 and a point (3,-1), write an equation in slope-

Mathematics

1 answer:

Luden [163]3 years ago

6 0

Answer:

slope= -1 = m

Step-by-step explanation:

y = mx + b

y = -1x + b

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A scientist claims that 4% of viruses are airborne. If the scientist is accurate, what is the probability that the proportion of

oksano4ka [1.4K]

Answer:

The probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%=0.00427

Step-by-step explanation:

We are given that

$\mu_{\hat{p}}=p=4%=0.04$

n=662

We have to find the probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%.

q=1-p=1-0.04=0.96

$\sigma_{\hat{p}}=\sqrt{p(1-p)/n}$

$\sigma_{\hat{p}}=\sqrt{\frac{0.04(1-0.04)}{662}}$

$\sigma_{\hat{p}}=0.0076$

Now,

$P(\hat{p}>0.06)=1-P(\hat{p}$

$=1-P(\frac{\hat{p}-\mu_{\hat{p}}}{\sigma_{\hat{p}}}$

$=1-P(Z$

$=1-0.99573$

$P(\hat{p}>0.06)=0.00427$

Hence, the probability that the proportion of airborne viruses in a sample of 662 viruses would be greater than 6%=0.00427

7 0

3 years ago

There are 88 seats in a theater. The seating in the theater is split into 4 identical sections. Each section has 14 red seats an

pogonyaev

Answer:

8 blue seats in each section

Step-by-step explanation:

88 seats in 4 identical sections

88÷4 = 22 seats in each section

red+blue = 22

14+blue = 22

blue = 22-14

8 blue seats each section

Equation:

No. of blue seats = (88/4) - 14

5 0

4 years ago

A teacher is giving an exam with 20 multiple-choice questions, each with four possible answers. The teacher's null hypothesis

frutty [35]

Answer:

That means that there´s a 0.01 of probability that the student is guessing.

Remember that the significance level is related to the strength of the evidence before rejecting the null hypothesis. The Significance level is the probability of rejecting the null hypothesis if it is true.

For example if the significance level is 0.03 it will indicate that there is a 3% of probability that students are guessing.

Lower significance levels indicate that you require stronger evidence before you will reject the null hypothesis.

So we can say that the teacher needs more evidence before rejecting the null hypothesis.

5 0

3 years ago

100 points will give brainly please help

Stels [109]

Answer:
1. Sum of the interior angles = 720°
2. (6x) + (5x + 26.5) + (7x - 8) + (4x + 21.5) + (5x + 19) + (10x + 13.5) = 720
3. Angle A = 6x = 6(17.5) = 105
Angle B = (5x + 26.5) = 114
Angle C = (7x - 8) = 114.5
Angle D = (4x + 21.5) = 91.5
Angle E = (5x + 19) = 106.5
Angle F = (10x + 13.5) = 188.5

Step-by-step explanation:
1. The sum of the interior angles = (The number of sides - 2) times 180
The sum of the angles of this polygon with 6 sides is 6 - 2) times 180 = 720°.
2. ∠A + ∠B + ∠C + ∠D + ∠E + ∠F = 720°
(6x) + (5x + 26.5) + (7x - 8) + (4x + 21.5) + (5x + 19) + (10x + 13.5) = 720
37x + 72.5 = 720 Simplify adding x terms and numbers)
37x = 647.5 Subtract 72.5 from both sides
x = 17.5 Dividing both sides by 37

Solve for each angle using x = 17.5
3. Angle A = 6x = 6(17.5) = 105
Angle B = (5x + 26.5) = 114
Angle C = (7x - 8) = 114.5
Angle D = (4x + 21.5) = 91.5
Angle E = (5x + 19) = 106.5
Angle F = (10x + 13.5) = 188.5

8 0

2 years ago

Three yellow balls, two red balls and five orange balls are placed in a bag. Mark draws a

Vera_Pavlovna [14]

i think this could be the answer

8 0

3 years ago