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Akimi4 [234]
3 years ago
15

What is the average mean of these scores 90 80 60 and 50

Mathematics
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

70

Step-by-step explanation:

You add all the numbers together and then divided by the number of numbers so

90+80+60+50=

280 divided by 4 is 70

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<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%20%2B%2036x%20%2B%20324%20%3D%20%28x%20%2B%20m%29%5E%7B2%7D%20" id="TexFormula1
nasty-shy [4]

Answer:

B. 18

Step-by-step explanation:

x^{2} + 36x + 324 = (x + m)^{2}

(x+18)^{2}= (x + m)^{2}

\cancel x+18= \cancel x + m

18= m

5 0
2 years ago
Read 2 more answers
A cylinder has a radius of 3.2 meters its volume is 190 Cubic meters find its height to the nearest 10th of a meter
Stels [109]

Answer:

volume = pi r^2 h

or, 190 = pi (3.2)^2 h

or, 190/10.24 = pi h

or, 18.56 = 22/7 h

or, 18.56×7/22 = h

thus , h = 5.9037

5 0
3 years ago
A square has a side length of 3x inches and an area of 324 in? What is the value of x​
Firdavs [7]

So its a square with a side length of 3x so all sides are 3x so 3x x 3x is 9x 9x = 324 so 924/9 is your answer ;D

8 0
3 years ago
Dr. Washington is interested in studying the relationship between test scores, coded from zero percent to 100 percent, and the n
aleksklad [387]

Answer:

independent quantitative.

Step-by-step explanation:

An indepentent variable in an investigation, is the variable that will be changed in order to know how its variation affects the dependent variable.

In this case, the dependent variable is the test scores since Dr Washington will study there is the numeber of hours of study affects the grade the students obtain.

Therefore, the hours of study are the independent variable.

It is also a quantitative variable since it can be counted.

6 0
3 years ago
Write the ratio<br> 2/3 /5<br> in simplest form
Ierofanga [76]

Answer:

A) 2/15

Step-by-step explanation:

So just divide it normally, do keep change flip

2/3*1/5

2/3 keep

divison change

Denomeinator, flip it, 5 to 1/5

now multiply

2/15

5 0
2 years ago
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