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kotegsom [21]
2 years ago
12

Karen is recording the percentages she earned on each quiz in her math class. Here are her results for the last 7 quizzes.

Mathematics
2 answers:
tresset_1 [31]2 years ago
8 0

87.57

If I'm remembering correctly, range is the sum of the numbers divided by how many numbers there are.

79+91+76+87+93+79+94=599

599/7= 87.571

Round your answer to the nearest tenth

87.57

Hope this helps

matrenka [14]2 years ago
6 0
85.8571. add all of the numbers together , then divide by how many numbers there are.
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The function h(t)=-4.92t^2+17.69t+575 is used to model an object being tossed from a tall building, where h(t) is the height in
nikklg [1K]
We have the following equation:
<span> h(t)=-4.92t^2+17.69t+575

</span> For the domain we have:
<span> </span>We match zero:
 -4.92t ^ 2 + 17.69t + 575 = 0
 We look for the roots:
 t1 = -9.16
 t2 = 12.76
 We are left with the positive root, so the domain is:
 [0, 12.76]

 For the range we have:
 We derive the function:
 h '(t) = - 9.84t + 17.69
 We equal zero and clear t:
 -9.84t + 17.69 = 0
 t = 17.69 / 9.84
 t = 1.80
 We evaluate the time in which it reaches the maximum height in the function:
 h (1.80) = - 4.92 * (1.80) ^ 2 + 17.69 * (1.80) +575
 h (1.80) = 590.90
 Therefore, the range is given by:
 [0, 590.9]

 Answer:
 the domain and range are:
 
domain: [0, 12.76] range: [0, 590.9]
5 0
3 years ago
Read 2 more answers
Solve----------------------------------------------------
kifflom [539]
Surface area = 6 x 10^2
6 x 10^2
6 x 100
600m^2
6 0
3 years ago
A beach ball has a radius of 3 inches calculate volume
nordsb [41]

Answer:

113.1 in.³

Step-by-step explanation:

V = (4/3)πr³

V = (4/3) × 3.14159 × (3 in.)³

V = 113.1 in.³

6 0
2 years ago
Dan bought a truck for $29,800. The value of the truck depreciated at a constant rate per year. The table shows the value of the
leonid [27]

Answer:

A) f(t) = 29,800(0.89)^t

Step-by-step explanation:The truck value decreases by 11% each year.

The present value of the truck was $29,800.

29,800 x 0.11 = 3,728 dollars lost from value.

29,800 - 3,728 = 26,522, the value of the truck after one year.

26,522 x 0.11 = 2,917.42 cash lost from value.

26,522 - 3,728 = 23,604.58, the value of the truck after two years.

Therefore, the answer is A) f(t) = 29,800(0.89)^t.

7 0
2 years ago
Can someone help me asap thx
Rufina [12.5K]

Answer:

1st = 18

2nd = -29

3rd = -6

4th= 8

Step-by-step explanation:

hope it helps

7 0
2 years ago
Read 2 more answers
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