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3 years ago

Write an equation to solve:

Mathematics

1 answer:

iragen [17]3 years ago

8 0

1. 9 feet revelent to the surface

2. 19 points

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-28- (3x+4)=2(x+6)+x

Akimi4 [234]

Answer:

-28-3x-4=2x+12+x

-32-3x=3x+12

6x=44

x=44/6=22/3

Step-by-step explanation:

5 0

3 years ago

3. Due to leakage, 30% of the water was lost from a water tank. If

Anni [7]

Answer:

1133.3 liters of water after leakage.

Step-by-step explanation:

x*.30=340

x=340/.30

x=1133.33

7 0

3 years ago

What’s the domain and range of this graph look at the arrow.

viva [34]

Answer:

This is a acute angle in the digits 1,4,6 should help the answer is acute

4 0

3 years ago

Question is attached

TiliK225 [7]

Answer:

The relation passes the vertical line test.

Step-by-step explanation:

When you graph the points, a vertical line can be drawn through them without hitting another point.

If this answer is correct, please make me Brainliest!

6 0

3 years ago

In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0

uysha [10]

Answer:

a) A response of 8.9 represents the 92nd percentile.

b) A response of 6.6 represents the 62nd percentile.

c) A response of 4.4 represents the first quartile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5.9

Standard Deviation, σ = 2.2

We assume that the distribution of response is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) We have to find the value of x such that the probability is 0.92

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.92$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = 1.405\\x = 8.991 \approx 8.9$

A response of 8.9 represents the 92nd percentile.

b) We have to find the value of x such that the probability is 0.62

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.62$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = 0.305\\x = 6.571 \approx 6.6$

A response of 6.6 represents the 62nd percentile.

c) We have to find the value of x such that the probability is 0.25

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.25$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = -0.674\\x = 4.4172 \approx 4.4$

A response of 4.4 represents the first quartile.

4 0

3 years ago