Ask question

Ask question

All categories

3 years ago

13

okay this makes 0 sense... Show how you can solve the equation 3x=9 by multiplying each side by the reciprocal of 3... need to b

e the full steps pls

1 answer:

Allisa [31]3 years ago

7 0

Answer:

x=3

Step-by-step explanation:

3x=9

Divide both sides by 3 and you get 1x=3 or basically x=3.

So the answer would be x=3.

You might be interested in

How do I solve this

Anettt [7]

For the first rectangle:
- Find the distance between (-4, 3) & (-2, 6) and (2, -1) & (-4, 3)
- Multiply the distances to get the area of the rectangle.

For the second rectangle:
- Find the distance between (-4, 4) & (-1, -5) and (2, -4) & (-4, 4)
- Multiply the distances to get the area of the rectangle.

Compare areas to see which one is larger.

6 0

3 years ago

What is the mean and standard deviation of the random variable Y (the number of females out of 40 who are color blind)? Answers

Debora [2.8K]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

Colorblindness is any abnormality of the color vision system that causes a person to see colors differently than most people, or to have difficulty distinguishing among certain colors Colorblindness is gender-based, while the majority of sufferers being males.

Roughly 8% of white males have some form of colorblindness, while the incidence among white females is only 1%. A random sample of 20 white males and 40 white females was chosen.

Let X be the number of males (out of the 20) who are colorblind.

Let Y be the number of females (out of the 40) who are colorblind.

What is the mean and standard deviation of the random variable Y (the number of females out of 40 who are color blind)? Answers may be rounded.

Given Information:

Female colorblindness proportion = 1%

Male colorblindness proportion = 8%

Female sample size = 40

Male sample size = 20

Required Information:

Mean = μ = ?

Standard deviation = σ = ?

Answer:

Mean = μ = 0.40

Standard deviation = σ = 0.015

Step-by-step explanation:

Let us check if the condition np ≥ 10 is satisfied or not

np

40*0.01

0.4 < 10

Since the condition np ≥ 10 is not satisfied the binomial random variable cannot be well approximated by a normal random variable. A larger sample size would be required to satisfy the condition np ≥ 10.

The mean is

μ = np

μ = 40*0.01 = 0.40

The standard deviation is

σ = √p(1 - p)/n

σ = √0.01(1 - 0.01)/40

σ = 0.015

6 0

3 years ago

Read 2 more answers

Please help ASAP Due very soon

MissTica

Answer:

y = -3/4 + 4

Step-by-step explanation:

use rise over run to find slope

6 0

3 years ago

Round to the nearest gram

Natali [406]

7.5 grams, 4 half lives so 120-60-30-15-7.5

4 0

3 years ago

Pls help fast i will mark brainlyiest

Leona [35]

The mean temperature of the orange juice is 5 °F <u>greater than</u> the mean temperature of the water

<h3>Calculating Average</h3>

From the question, we are to calculate how much greater the mean temperature of the orange juice is than the mean temperature of the water

From the given chart,

Mean temperature of orange juice = $\frac{59+65+72+78+85+81}{6}$

Mean temperature of orange juice = $\frac{440}{6}$

Mean temperature of orange juice = 73.33 °F

Mean temperature of water = $\frac{55+62+68+71+79+75}{6}$

Mean temperature of water = $\frac{410}{6}$

Mean temperature of water = 68.33 °F

Difference in temperature = 73.33 °F - 68.33 °F

Difference in temperature = 5 °F

Hence, the mean temperature of the orange juice is 5 °F <u>greater than</u> the mean temperature of the water

Learn more on Calculating average here: brainly.com/question/17102414

#SPJ1

5 0

2 years ago