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77julia77 [94]
3 years ago
10

determine the quadratic function f whose graph is given. the vertex is (2,-7) and the y-intercept is -3

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

learning math is boring

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the average adult horse needs 2/5 bale of hay each day to me dietary recommends. Oh horse farm has 44 bales of hay. How many hor
Ostrovityanka [42]
110 horses can be found in one day with 44 bales of hay.  If each horse needs 2/5 bales of hay each day, just convert 2/5 into a decimal (0.4) and divide 44 by 0.4 to get 110.  (That's a lot of horses!)
4 0
3 years ago
The width of a rectangle is 4n-8.5 feet and the length is 8.5n+9 feet. Find the perimeter of the rectangle
Eva8 [605]

Answer: P = 25n + 35

Step-by-step explanation:

The perimeter of a rectangle is twice the sum of length and width.

P = 2(l +w)

P = 2((8.5n+9) + (4n +8.5))

P = 2(12.5n +17.5)

P = 25n + 35

7 0
3 years ago
Read 2 more answers
A test preparation claims that more than​ 50% of the students who take their test prep course improve their scores by at least 1
satela [25.4K]

Answer:

Step-by-step explanation:

Corresponding scores before and after taking the course form matched pairs.

The data for the test are the differences between the scores before and after taking the course.

μd = scores before taking the course minus scores before taking the course.

a) For the null hypothesis

H0: μd ≥ 0

For the alternative hypothesis

H1: μd < 0

b) We would assume a significance level of 0.05. The​ P-value from the test is 0.65. The p value is high. It increases the possibility of accepting the null hypothesis.

Since alpha, 0.05 < than the p value, 0.65, then we would fail to reject the null hypothesis. Therefore, it does not provide enough evidence that scores after the course are greater than the scores before the course.

c) The mean difference for the sample scores is greater than or equal to zero

3 0
3 years ago
Eli sells refrigerators. His base salary is $250 per week, and his commission is $50 for each refrigerator (r) that he sells. He
Mekhanik [1.2K]

Answer:

C and e

Step-by-step explanation:

the 50r represents the commision he receives for each refrigerator he sells, and the 250 is the base salary and it’s bigger than, >, because he needs to earn MORE than 900 and you get D by solving the inequality,  50r >900, r>15

would be amazing if you marked this brainliest :)

5 0
3 years ago
-3(2d)+ (-5e +6) + (3d-8) I'm standard form
Sati [7]

Answer:

−3d−5e−2

Step-by-step explanation:

7 0
3 years ago
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