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lina2011 [118]
3 years ago
15

What is the average rate of change for this quadratic function for the interval

Mathematics
2 answers:
Taya2010 [7]3 years ago
6 0

Answer:

8

Step-by-step explanation:

f(x2) -f(x1)

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

x2-x1

x2 = -3  and x1 = -5

Novay_Z [31]3 years ago
5 0

Answer:

4

Step-by-step explanation:

average = mean of the data

(3 +5)/2

=8/2

=4

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There are 72 boys and 90 girls on the math team for the next math competition Mr. Johnson would like to arrange all the students
yawa3891 [41]

Answer:

Mr. Johnson can arrange 18 students in each row, that is 4 rows of boys and 5 rows of girls.

Step-by-step explanation:

Given:

Number of boys = 72

number of girls = 90

We need to arrange students in rows with equal number of only boys and only girls.

To find the maximum number (x) of boys or girls in each row, we will find the GCF (Greatest Common Factor) of the numbers 72 and 90, such that 'x' divides both numbers evenly without a remainder.

Now to find GCF we will factorize both numbers.

72 = 2\times2\times2\times3\times3

90= 2\times 3\times 3\times 5

from above we can say that;

GCF = 2\times 3\times 3 = 18

Hence Mr. Johnson can arrange 18 students in each row, that is 4 rows of boys and 5 rows of girls.

5 0
3 years ago
Sammy served food to a group at a restaurant. The total cost of the food was $62.00. The sales tax is 6% of the cost of food. Th
alex41 [277]
Total cost = 62 + (6% of 62) + (20% of 62)

-  Find 6% of 62:
1% = 62 / 100 = 0.62
0.62 x 6 = 3.72

-  Find 20% of 62:
10% = 6.2
6.2 x 2 = 12.4

Add everything together:
62 + 12.4 + 3.72 = 78.12

The total cost was $78.12

5 0
4 years ago
Read 2 more answers
What is 278 minus 149
Basile [38]

Answer:

129

Step-by-step explanation:

278 - 149 = 129

5 0
3 years ago
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If point (4, 5) is on the graph of a function, which equation must be true?
Doss [256]

Answer:

f(4) = 5

Step-by-step explanation:

functions are represented by f(x), so x should be the value in parenthesis and the y value should be what it equals

5 0
3 years ago
What number is 65% of 620?​
alina1380 [7]

Answer:

403

Step-by-step explanation:

Simply multiply 0.65 and 620 together to get 403 as your answer.

7 0
4 years ago
Read 2 more answers
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