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hoa [83]
3 years ago
6

A student thought she had 3 missing assignments, she actually had 5 missing assignments. What was her percent error?

Mathematics
1 answer:
Licemer1 [7]3 years ago
8 0

Answer:

0.6%

Step-by-step explanation:

You might be interested in
Which expression is equivalent to n^2 + 26n + 88 for all values of n?
sp2606 [1]
(B) (n + 4)(n +22)

When you expand this equation, we get:

n^2 + 4n + 22n + 88

n^2 + 26n + 88
7 0
3 years ago
5. For the data in the table below, find the sum of the absolute deviations for the predicted values
Kipish [7]

Based on the absolute deviations and the predicted values, the sum of absolute deviations will be <u>4.8.</u>

<h3>What would be the sum of absolute deviations from predicted values?</h3>

This can be found as:

= ∑ (Observed value - Predicted value)

The observed values are given in the table and the predicted values will be calculated using y = 3.6x - 0.4.

Solving gives:

=  [3 - (3.6 x 1 - 0.4)] + [7 - (3.6 x 2 - 0.4)] + [ 9 - (3.6 x 3 - 0.4)] + [14 - (3.6 x 4 - 0.4)] + [15 - (3.6 x 5 - 0.4)] + [21 - (3.6 x 6 - 0.4)] + [25 - (3.6 x 7 - 0.4)]

= 0.2 + 0.2 + 1.4 + 0 + 2.6 + 0.2 + 0.2

= 4.8

Find out more on absolute deviation at brainly.com/question/447169.

4 0
2 years ago
Members of the drama club held a car wash to raise funds for their spring musical. They
jenyasd209 [6]

Answer:

100 cars

25 trucks

Step-by-step explanation:

$3c + $5t = $425

c + t = 125 vehicles

($3 * 100) + ($5 * 25) = $425

100 + 25 = 125

Therefore, they washed 100 cars and 25 trucks

Hope this helps!

8 0
3 years ago
Gabriel is designing equally sized horse stalls that are each in the shape of a rectangular prism. Each stall must be 9 feet hig
Andrews [41]

Answer:

The equation is 9x(x+2)=1,080.

The solution of the equation is x=10.

Step-by-step explanation:

The volume of a rectangular prism is found using the formula V = l · w · h, where l is the length, w is the width, and h is the height.

Let x ft be the widht of the stall, then the length of the stall is x+2 ft. If each stall must be 9 ft high, then the volume of the stall is V=x\cdot (x+2)\cdot 9=9x(x+2)\ ft^3.

The volume of each stall is 1,080\ ft^3, then

9x(x+2)=1,080,\\ \\x(x+2)=120,\\ \\x^2+2x-120=0,\\ \\D=2^2-4\cdot (-120)=4+480=484=22^2,\\ \\x_{1,2}=\dfrac{-2\pm 22}{2}=-12,\ 10.

The width cannot be negative, thus, x=10.

5 0
3 years ago
How do you do this <br> I don’t get it
Ierofanga [76]

Answer:

x= 65 z= 38 y= 77

Step-by-step explanation:

x=65° (opposite angles are equal)

z= 180°-[71+71 (bc the other side is also equal to 71)]

z= 180°-142°=38°

y= 180 - [sum of angle x (65°) and angle z (38°)]

y= 180 - 103= 77°

to make sure ur answer is correct the sum of angle x, y and z MUST = 180

lets check:

65° + 38° + 77° = 180°

:)

6 0
3 years ago
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