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Neko [114]
3 years ago
15

A group of 84 people were given an iq test. Suppose the average iq group was 113. The 36 male had an average iq of 114 find the

average iq of the female
Mathematics
1 answer:
icang [17]3 years ago
6 0

Answer:

  112.25

Step-by-step explanation:

The total of IQ points for all people in the group was ...

  84 × 113 = 9492

Of those points, 36 × 114 = 4104 came from the males. Then the female IQ points were ...

  9492 -4104 = 5388

and the female average was ...

  5388/(84-36) = 5388/48 = 112.25

The average IQ of the females in this group was 112.25.

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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B36%7D%7B4%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \frac{36}{4}
iris [78.8K]

Step-by-step explanation:

\sqrt{36/4} =\sqrt{36} /\sqrt{4}

\sqrt{36}=6

\sqrt{4} =2

6/2=3

Hope that helps :)

7 0
3 years ago
#14 Please answer the question
Ivenika [448]

Answer:

D is the right answer

Step-by-step explanation:

8 0
2 years ago
A dairy cow can produce up to 2000 gallons of milk every 365 days. At this rate, a cow can produce x gallons of milk in 500 days
Mariulka [41]

First I cant understand the choices, because on how you type so I will jus provide the answer for you. First the amount of milk produce is proportional to the number of days so

2000 = k(365)

K = 2000 / 365

So to solve for x

X = ( 2000/365) 500

<span>X = 2740</span>

5 0
3 years ago
Is (x+7) a factor of f(x)= x^3-3x^2+2x-8
nikklg [1K]

Answer:

Step-by-step explanation:

Use synthetic division to answer this.  If the remainder is zero, then we can safely assume the divisor (x + 7) is a factor of the polynomial f(x)= x^3-3x^2+2x-8.

We use -7 as the divisor in synth. div.  This comes from the factor (x + 7):

-7   /    1    3     2     -8

               -7   28  -210

     -------------------------

         1      -4   30   -218

Here, the remainder is -218, not zero, so no, (x+7) is not a factor of f(x)= x^3-3x^2+2x-8.

6 0
3 years ago
How to solve 2+(3-2×2)×1
UkoKoshka [18]

Answer:

Step-by-step explanation: First figure what’s in the parentheses. (3-2*2) wanna do 2*2 That’s 4 then (3-4) = -1. 2+(-1)*1. Then multiply -1 by 1 which is -1. Then 2+(-1)= 1

4 0
3 years ago
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