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r-ruslan [8.4K]
2 years ago
15

2. Find the value of root4 (81)-2​

Mathematics
2 answers:
tangare [24]2 years ago
7 0
The answer of that is 1
arlik [135]2 years ago
6 0
<h2>Answer: <u><em>1</em></u></h2>

<u />

Step-by-step explanation:

\sqrt[4]{81} -2\\=3-2 \\=1

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Over the course of a year, the population of chipmunks in Boston increased from 300000 to 387000. What was the percent increase
Vesna [10]

Answer:

The percent increase of the population of chipmunks was 29%

Step-by-step explanation:

we know that

The population of 300,000 chipmunks represent the 100%

The increase of population is equal to

(387,000-300,000)=87,000 chipmunks

Using proportion find the percent increase

Let

x-----> the percent increase

300,000/100%=87,000/x

x=100*87,000/300,000

x=29%

8 0
3 years ago
From points A and B, the distance between which is 1020 mi, two trains left simultaneously towards each other. The speed of one
djverab [1.8K]

Complete question :

From points A and B, the distance between which is 1020 mi, two trains left simultaneously towards each other. The speed of one train was 10 mph greater than the speed of the other one. In 5 hours the trains had not met yet and were 170 mi apart. Find the speed of the trains.

Answer:

Train A = 80 miles per hour

Train B = 90 miles per hour

Step-by-step explanation:

Given that :

Distance between A and B = 1020

Let the speed of A = x

Speed of B = x + 10

Since they both left simultaneously;

Distance traveled after 5 hours will be :

Distance = speed * time

A = x * 5 = 5x

B = (x + 10) * 5 = 5x + 50

After the distance traveled by each of A and B, they are still 170 miles apart

Hence, distance covered after 5 hours ;

Total miles - miles left

1020 - 170 = 850 miles

Hence,

5x + 5x + 50 = 850

10x = 850 - 50

10x = 800

x = 80

Train A = 80 miles per hour

Train B = 80 + 10 = 90 miles per hour

5 0
2 years ago
Situation 1: Two students, Theo and Lance, each have some chocolates. They know that
vivado [14]

They each have two chocolates so those numbers of chocolates are the same.

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There is no information given, in the problem as you show it, that allows us to determine the number of chocolates in a tub.

Answers: chocolates in a bag: 18. chocolates in a tub: unknown.

4 0
3 years ago
Solve for x. enter your answer in interval notion using grouping symbols. x^2+2x&lt;15
bezimeni [28]

The inequality would be -5<x<3...

Hope this helps!

5 0
2 years ago
Select all of the ratios that are equivalent to 1/2
olganol [36]

See picture below. Being that you did not provide possible answers, I don't know what answer you can choose from.

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2 years ago
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