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pychu [463]
3 years ago
5

1. Nicole usually scores between 89%

Mathematics
1 answer:
REY [17]3 years ago
8 0

Answer:

The Answer is: B. 79% and 89%

Step-by-step explanation:

Subtract 11% from 89 and 100 to get the range:

89 - (89*.11) =

89 - 9.79 = 79.21

100 - (100*.11) =

100 - 11 = 89

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How many revolutions must be made by a wheel of diameter 2.8m in order to cover a distance of 484km?
arlik [135]
<h2>Answer :</h2>

A wheel is a circle.

Given diameter of wheel = 2.8 m

Then radius of the wheel = 2.8/2 = 1.4 m

Now we know that , circumference of circle =2\pi r

<h3>Then, </h3>

Circumference of wheel = 2 × 22/7 × 1.4

Circumference of wheel = 8.8 m

<u>From the above we can conclude that ;</u>

1 revolution = 8.8 m

x revolution = 484 km = 484000 m

<h3>Thus, </h3>

x =  \frac{1}{8.8}  \times 484000 \\  \\ x = 55000

<h3>Therefore, total of 55,000 revolutions are made by the wheel.</h3>
5 0
4 years ago
Say something so mean to me idc just say whats on your mind broskis
vodomira [7]

Answer:

Can grape juice be made into grapes?

Your so UGLY you turned medusa into stone.

Step-by-step explanation:

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4 0
3 years ago
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A country's population in 1991 was 136 million. In 2000 it was 141 million. Estimate the population in 2016 using the exponentia
xeze [42]
Answer: The population will be about 150 million in the year 2016.

First, let's start by using the given equation. Fill in the values that you know and solve for the missing piece.

Our equation is:

141 = 136e^(9k)    I used 9 because 2000 is 9 years past 1991.

(141/136) = e^9k   Divide both sides by 136

ln (141/138) = 9k    Take the natural log of both sides, the e is removed.

0.004 = k    Find the natural log of 141/136 and divide it by 9.

Now, we have a new equation. Just plug in 25 for x and you will get 150. We used 26 because 2016 is 25 years past the starting year of 1991.
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3 years ago
A projectile is launched at a height of h feet above the ground at an angle of θ with the horizontal. The initial velocity is v0
Nataliya [291]

Answer:

Simple

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8 0
3 years ago
Short cut method to mulitply 12 by 50
liberstina [14]

Answer:

12 * 50 = 600

Step-by-step explanation:

We have to multiply 12 by 50

<u>Short cut method for multiplying a number by 50</u>

Step 1: Take the half of the given number

Step 2: Multiply the result by 100

<u>To find the short cut method to multiply 12 by 50</u>

Here the number is 12

Step 1: divide the number by 2

12/2 = 6

Step 2: Multiply 6 by 100 we get 600

Therefore 12 * 50 = 600

4 0
4 years ago
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