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3 years ago

Evaluate the expression when a b 14 15 and b

Mathematics

1 answer:

Virty [35]3 years ago

6 0

A=-15
b=-5
(b+14)/a=(-5+14) / -15=9/-15=-9/15=-3/5

answer: -3/5

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Slope of (-20,9) (14,9)

skelet666 [1.2K]

Y2-y1/x2-x1 is slope so

9-9/14-(-20) so you get 0/34 which means there is no slope since they have the same y (the equation would be y=0x+9 therefore y=9)
Which makes sense since the equation is a straight line

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3 years ago

You read 9.75 pages in your science book and 24.5 pages of a play for English class. It takes you 1.2 minutes to read each page

Sladkaya [172]

9.75 * 1.2 = 11.7
24.5 * .8 = 19.6

11.7+19.6= 31.3 minutes

hope this helped :)

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3 years ago

Academic tenure is when a teaching or research position is given to a professor indefinitely. By removing concerns about job sec

Anarel [89]

Answer:

The correct null hypothesis in words is:

D. The long-run proportion of private colleges in the US, that have tenure-track faculty is 0.5.

$H_0: \pi = 0.5$

Step-by-step explanation:

He wants to test the claim that the proportion of private schools that have avenues for professors to apply for tenure is significantly higher than 0.5, as happen with the public schools.

Then, the alternative hypothesis is:

$H_a: \pi >0.5$

The null hypothesis represents the opposite claim, where the proportion is not significantly higher than 0.5. Then, the null hypothesis is expressed as:

$H_0: \pi = 0.5$

The correct null hypothesis in words is:

D. The long-run proportion of private colleges in the US, that have tenure-track faculty is 0.5.

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3 years ago

The area of a triangle is 16 units square. The length is twice the height. Find the height

Norma-Jean [14]

The formula for area of a triangle is 1/2 x base x height.

Let the height = x

Then the base (length) = 2x ( twice the height)

You know have 16 = 1/2 * 2x * x

Multiply both sides by 2 to remove the 1/2:

32 = 2x * x

Simplify the right side:

32 = 2x^2

Divide both sides by 2:

16 = x^2

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The height is 4 units and the length is 8 Units

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3 years ago

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diamong [38]

Answer:

The situation is Multiplicative.

The equation will be $y=2x$

Step-by-step explanation:

We are given the table:

Input (x) 5 8 11

Output (y) 10 16 22

Looking at the table, we see that the value of x is doubled to get value of y

Looking at the trend: 5(2) = 10

8(2) = 16

11(2) = 22

The value of x is multiplies by 2 to get value of y.

So, The situation is Multiplicative.

Now, The equation will be $y=2x$

because we saw the trend, that every value of x is multiplied by 2 to get value of y.

3 0

3 years ago

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