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3 years ago

Find the value of a²+b if... a=-2 and b=5

Mathematics

2 answers:

Nana76 [90]3 years ago

4 0

Answer:

Step-by-step explanation:

a²+b

Substituting values,

=> (-2)^2+5

=> 4 + 5

=> 9

otez555 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

a² + b

Where we have :- a = -2 & b = 5

plug the values

= ( -2)² + 5
= 4+ 5
= 9

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Explain when the median of a data set is a better measure of center than the mean.

Delvig [45]

Answer:

The median of a data set is better when you have a term or terms that are not close to the other terms

Step-by-step explanation:

For example:

Say you have the data set

1, 15, 17, 18, 22, 84

The median of these terms would be 17.5

(it is the exact center of the data group)

17 + 18 = 35

35/2 = 17.5

The mean of these terms would be 26.17

(this number is not close to the center because the numbers 1 and 84

are not close enough to the other terms)

1 + 15 + 17 + 18 + 22 + 84 = 157

157/6 = 26.17

7 0

3 years ago

Read 2 more answers

Answer all of these and I will give you 35 points!!!!!!!!!!!!!!!!!!!!!

aev [14]

9. LCM of 9, 12, and 15 is 180

12. LCM of 15, 18, and 30 is 90

15. LCM of 40 and 1 is 40

16: factors of 24 : 1,2,3,4,6,8,12, and 24

17: factors of 63 : 1, 2, 4, 8, 16, 32 and 64.

18: factors of 50 : 1, 2, 5, 10, 25, and 50

19: LCM of : 3 , 2 , 7 is 42

20: LCM of : 15 , 2 is 30

21: LCM of : 45, 30 is 90

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7 0

3 years ago

C/- 4 = 16 please help

Yuri [45]

Answer:

c = -64

Explanation:

c/(-4) = 16

multiply the equation by -4,

c/(-4) × (-4) = 16 × (-4)

c = 16 × (-4)

c = -64

7 0

3 years ago

Read 2 more answers

How do you convert 6.5 pounds to a fraction

fomenos

6.5 lbs/100lbs but what is it out of? 6.5 lbs out of what? 6.5/10 6.5/10000000lbs???

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3 years ago

It should take 5.22 minutes to clean a shower. You have 5 showers that need to be cleaned. How many minutes should it take for y

Pavlova-9 [17]

It will take 26.1 minutes because 5.22x5 is equal to 26.1

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3 years ago