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Vlad [161]
2 years ago
14

Write a quadratic function f whose zeros are 13 and 2.

Mathematics
1 answer:
Katena32 [7]2 years ago
6 0

Answer:

(x-13)(x+3)  = f(x) = x^2 -10x -39

Step-by-step explanation:

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Problem in the picture
STatiana [176]

Answer:

B)

Step-by-step explanation:

65 x 2.5 = 162.5

70 x 1.5 = 105

162.5+105=267.5

7 0
3 years ago
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a class with 30 students had an average score of 80 on a test. A class with 20 students had an average score of 90 on the same t
snow_tiger [21]

The average score of all the students in both classes is 84.

<h3>How to calculate the average?</h3>

The class with 30 students had an average score of 80 on a test. The total score will be:

= 30 × 80

= 2400

A class with 20 students had an average score of 90 on the same test. The total score will be:

= 20 × 90

= 1800

Total scores = 2400 + 1800 = 4200

Number of students = 20 + 30 = 50

The average score will be:

= Total score / Total students

= 4200 / 50

= 84

Learn more about average on:

brainly.com/question/24313700

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8 0
1 year ago
What is the value of h when the function is converted to vertex form?
elena-s [515]

Answer: h=7

Step-by-step explanation:

By definition the function in vertex form is:

 f(x)=a(x-h)^{2}+k

Where (h,k) is the vertex of the parabola.

You must group the terms that contain the same variable in the function:

f(x)=(x^{2}-14x)+29

Complete the square as following:

f(x)=(x^{2}-14x+49)+29-49

Now you must rewrite it as following:

 f(x)=(x-7)^{2}-20

Then:

h=7

4 0
3 years ago
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Write an equation to represent the following situation. Justin wants to earn 500 minutes on Khan Academy He currently has 120 mi
Alisiya [41]

Answer:

500=120+60

Variable would either be M or D For 60

Step-by-step explanation:


5 0
3 years ago
Please help for number 2 :/
hoa [83]

Answer:

25.4

Step-by-step explanation:

the answer is 25.4

7 0
3 years ago
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