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lidiya [134]
3 years ago
7

Janelle got 19 problems out of 25 correct on her quiz. To find her quiz grade, she can divide the number she got correct out of

the total number of problems, then multiply by 100. What is her quiz grade?
Mathematics
2 answers:
Alexeev081 [22]3 years ago
5 0

Answer:

I think the answer is 131 I'm not really sure I have no brain.

Step-by-step explanation:

kompoz [17]3 years ago
3 0

Answer:

76%

Step-by-step explanation:

\frac{19}{25} × 100% = 76%

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if a > 0, b>0, show that f(x)= a(1-e^-bx) is everywhere increasing and everywhere concave down.
faltersainse [42]
If a > 0, b>0, show that f(x)= a(1-e^-bx)
4 0
3 years ago
A sphere has a radius of 4x + 1. Which polynomial in standard form best describes the total surface area of the sphere? Use the
vampirchik [111]
Answer:
area = pi * (64x² + 32x + 4)
Using pi = 3.14:
area = 200.96 x² + 100.48 x + 12.56

Explanation:
We are given that:
area of sphere = 4 * pi * r²
radius = 4x + 1

Substitute with the radius in the given formula to get the area as follows:
area = 4 * pi * (4x+1)²
area = 4 * pi * (16x² + 8x + 1)
area = pi * (64x² + 32x + 4)

Using pi = 3.14:
area = 200.96 x² + 100.48 x + 12.56

Hope this helps :)

7 0
3 years ago
Help? which one is it
Ierofanga [76]

Here's the solution,

The given figure is of a parallelogram,

and we know that opposite sides of a parallelogram are equal, so

=》

y + 19 = 2y

=》

19 = 2y - y

=》

y = 19

and,

=》

2x - 8 = x + 16

=》

2x - x = 16 + 8

=》

x = 24

hence, the values are :

x = 24

y = 19

7 0
3 years ago
Alfredo has different colored spiral notebooks in his backpack. Which of the following models could be used to simulate a 1 in 3
BartSMP [9]

Answer:

the fourth option

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

Probability of choosing a red spiral = number of red spiral / total sum of spirals in the bag

1st option = 2 / 4 = 1/2

2nd option = 4/8 = 1/2

3rd option = 2/3

4th option = 2/6 = 1/3

the fourth option is correct

4 0
2 years ago
If ∠1 and ∠2 are supplementary angles and m∠1=97.54°, what is m∠2?
Zigmanuir [339]
M2 is 180-97.54 which equals 102.46
4 0
3 years ago
Read 2 more answers
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