<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%2B%2016x%20%2B%2010%20%3D%200" id="TexFormula1" title=" {x}^{2} + 16x

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Westkost [7]

2 years ago

+ 10 = 0" alt=" {x}^{2} + 16x + 10 = 0" align="absmiddle" class="latex-formula">Split the middle term.

Mathematics

1 answer:

Sergio039 [100]2 years ago

4 0

Answer :-0.65 , -15.34

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Need help! Find the interval estimates for those that want to get out earlier and those that want to get out later. Explain how

ivolga24 [154]

Answer:

a) The interval is for those that want to get out earlier is 43 < n < 47 students

b) The interval is for those that want to get out later is 48 < n < 50 students

c) The group that wants to get out of school earlier could win if those who have no opinion vote with them

Step-by-step explanation:

Given that:

sample size (n) =128

mean = np where p is the probability

a) Probability of those that want to get out earlier = 0.35.

The mean of those that want to get out earlier = n × probability = 0.35 × 128 = 45

Margin of error = 4% = 0.04 × 45 = 1.8 ≈ 2

Therefore the interval = mean ± Margin of error = 45 ± 2 = (43, 47)

The interval is for those that want to get out earlier is 43 < n < 47 students

b) Probability of those that want to get out later = 0.39.

The mean = n × probability = 0.39 × 128 = 50

Margin of error = 4% = 0.04 × 50 = 2

Therefore the interval = mean ± Margin of error = 50 ± 2 = (48, 52)

The interval is for those that want to get out later is 48 < n < 50 students

c) The group that wants to get out of school earlier could win if those who have no opinion vote with them

4 0

3 years ago

What is the sum of eight hundredths plus six?

Serggg [28]

If i am correct the answer should be 6.08

7 0

3 years ago

Read 2 more answers

Miss Kito’s car holds 18 gallons of gasoline. As she was driving, she noticed that the fuel gauge indicated that she had 1/5 of

jonny [76]

We will see that the cost of filling the tank is $38.88, and at the final of the trip she will have 4 gallons on the tank.

<h3>How much costs to fill the tank?</h3>

a) The car holds 18 gallons, and it has 1/5 of the tank remaining.

Then in the tank there are:

(1/5)*18 = 3.6 gallons.

Then we need 18 gal - 3.6 gal = 14.4 gal

And each gallon costs $2.70, then to fill the tank, Miss Kito needs:

(14.4)*$2.70 = $38.88

b) Now we know that the car travels 26 miles per gallon, and she needs to travel a total distance of 364 miles.

Then she needs:

$\frac{364mi}{26 mi/gal} = 14 gal$

To travel that distance, and the car holds 18 gallons, so at the end of the trip, she will have 4 gallons of gasoline in her car.

If you want to learn more about algebra, you can read:

brainly.com/question/4344214

7 0

2 years ago

19. At a boardroom meeting, the sales manager is happy to announce that sales have risen from $850,000 to $1,750,000 at a

klasskru [66]

The number of years it would take sales to reach $1,750,000 is 14.65 years.

<h3>What is the number of years?</h3>

The formula that can be used to determine the number of years it would take for the sales to reach $1,750,000 is:

Number of years : In (FV / PV) / r

Where:

FV = future level of sales - $1,750,000
PV = present level of sales = 850,000
r = rate of growth - 4.931998%

Number of years : In ($1,750,000 / 850,000) / 0.04931998

Number of years : In (2.06) / 0.04931998

Number of years : 14.65 years

To learn more about how to determine the number of years, please check: brainly.com/question/21841217

#SPJ1

3 0

1 year ago

6. A prism has bases that are equilateral triangles with sides lengths of 10 inches and a length of 30 inches.

eimsori [14]

Answer:

The volume of the prism is $1,299\ in^{3}$

Step-by-step explanation:

we know that

The volume of the prism is equal to

$V=BL$

where

B is the area of the triangular base

L is the length of the prism

we have

$L=30\ in$

The area of a equilateral triangle is equal to

$B=\frac{1}{2}(10)^{2} sin(60\°)$

$B=25\sqrt{3}\ in^{2}$

substitute

$V=(25\sqrt{3})(30)=1,299\ in^{3}$

8 0

2 years ago