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3 years ago

X squared + 3x-6 = -8

Mathematics

1 answer:

Lana71 [14]3 years ago

4 0

Answer:

so it queals 8

Step-by-step explanation:

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61 meters = _____ feet <br><br> I'LL GIVE BRAINLIEST!

lilavasa [31]

Answer:

200.131234

Step-by-step explanation:

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3 years ago

ANSWER AND SHOW WORK!!!! PLS AND IT'S GRADED

mote1985 [20]

Answer:

the answer is a hope this helps you 4/5 because a proportional relationship. two quantities and it represented by a graph

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3 years ago

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A 16 foot ladder is leaning up against the wall. If the bottom of the latter is 6 feet from the base of the wall, how far up the

PSYCHO15rus [73]

For this question, you must use the Pythagorean theorem.
a^2 + b^2 = c^2

In this situation c=16 and a=6
First do 16^2. This equals 256
Second do 6^2. This equals 36

Now, subtract 36 from 256 and fond the square root.

Your answer should be 14.8

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3 years ago

A sea bird is 28 meters above the surface of the ocean. What is its elevation

Margaret [11]

Answer:

I think 28 meters

Step-by-step explanation:

it is 28 meters above so it's elevation is 28 meters???? im not sure

3 0

3 years ago

In 1990, 23.8% of 18-24 year-olds in Biddeford, Maine were attending college. About 10 years later, a random sample of 610 18-24

Vlada [557]

Answer:

There is enough evidence to support the claim that the percentage of residents attending college in that age-group is greater than 23.8%

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 610

p = 23.8% = 0.238

Alpha, α = 0.01

Number of 18-24 year-old attending college , x = 178

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.238\\H_A: p > 0.238$

This is a one-tailed(right) test.

Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{178}{610} = 0.2918$

$z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Putting the values, we get,

$z = \displaystyle\frac{0.2918-0.238}{\sqrt{\frac{0.238(1-0.238)}{610}}} = 3.1201$

Now, we calculate the p-value from the table.

P-value = 0.0009

Since the p-value is lower than the significance level, we fail to accept the null hypothesis and reject the null hypothesis.

Conclusion:

Thus there is enough evidence to support the claim that the percentage of residents attending college in that age-group is greater than 23.8%

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4 years ago

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