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3 years ago

What is a in the quadratic eqation if the points are (3,-30), (5,0), (7,70), (9,180)

1 answer:

7 0

Very very simple so back in my day when people have been wondering on this app waddling and waddling they think they can do it when they go it is the easiest of the easiest way for me a duck rubber kind intact it is 15

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Write an equation parallel to the line y=3/2x-2 that goes through (5,1) in point slope form.

s344n2d4d5 [400]

Answer: y=3/2x-13/2

Step-by-step explanation:

concept to know: two parallel lines have the same slope

y=3/2x+b

in order to find b or the y-intercept, we plug the point in

y=3/2x+b

1=3/2(5)+b

1=15/2+b

b=-13/2

----------------------------

y=3/2x-13/2

Hope this helps!! :)

4 0

3 years ago

ASAP WHO EVER ANSWER THESE WILL BE MARKED BRANLIEST

valentinak56 [21]

Answer:

i dont know honestly

Step-by-step explanation:

3 0

3 years ago

Please help!!! Multiply. Write your answer in scientific notation. (5×10 – 8)(1×103)<br><br> 20 pts

PolarNik [594]

Answer:

4.326 x 10^ 3

Step-by-step explanation:

Correct me if wrong please :)

4 0

3 years ago

7. A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The T

Anit [1.1K]

Answer:

Modification has not reduced the number of accidents.

Step-by-step explanation:

$H_0: \mu\geq0\\H_a:\mu$

A B C D E F G H

Before modification 5 7 6 4 8 9 8 10

After modification 3 7 7 0 4 6 8 2

Difference -2 0 1 -4 -4 -3 0 -8

Mean of differences $M_d = \frac{sum}{8}=\frac{2+0-1+4+4+3-0+8}{8}=2.5$

Standard deviation of differences = $\sqrt{\frac{\sum(x-\bar{x})^2}{n}}=2.9277$

Formula of paired t test :

$t=\frac{M_d}{\frac{s}{\sqrt{n}}}\\t=\frac{2.5}{\frac{2.9277}{\sqrt{8}}}\\t = 2.4152$

Df = n-1 = 8-1 =7

$t critical = t_{(df, \alpha)}=t_{7,0.01}=2.998$

t critical> t calculated

So, We failed to reject null hypothesis

Hence modification has not reduced the number of accidents.

6 0

3 years ago

A pair of pants with a marked price of $35.00 has a discount of 20%. How much is the discount?

Rasek [7]

The answer is c.

The discount is 20% off, right? What's 20% of 35? To do that, you need to do the problem 35*.20, because .20 is equivalent to 20%. Remember how it is 20% off? That means subtract here. When you do 35*.20, you'll get 7. Now, subtract 7 from 35. 35-7=28, and your answer is in money; $28.00. :)

4 0

3 years ago

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