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Troyanec [42]
3 years ago
10

Please please please help!!!!

Mathematics
2 answers:
Bogdan [553]3 years ago
8 0

Answer is 4:2 (choice B)

AB is 4 units while A'B' is 2 units. The ratio of the sides is simply gluing these two numbers together with a colon symbol in between to get 4:2. We can reduce this to get 2:1, but your teacher has decided not to do this.

rewona [7]3 years ago
6 0
I think the answer is choice B.

Hope it helps!
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A researcher surveys job satisfaction among laborers and​ white-collar workers.​ (Job satisfaction is rated on a scale from 1​ =
Free_Kalibri [48]

Answer:

Option A is the answer

Step-by-step explanation:

From the question we are told that

   The  mean of  laborers is  3

    The standard deviation is  1

     The mean of white collar workers is  7

      The standard deviation for white collar workers is  3.16

From this value given we can see that the white collar worker is more  dissatisfied than the laborers

 Also  the from the value of standard deviation of the laborers we see that the deviation from the mean is  1 which means that they are equally  dissatisfied

But in the case of white collar workers we see deviation from the mean is very high which implies that the dissatisfaction varies more with white collar workers

3 0
3 years ago
Jeff saved $500 from his summer job so he would have spending money during the school year. He withdraws $12 from his account ea
Alex Ar [27]
Jeff Lucy Goethe licky
4 0
3 years ago
Find the value of the following expression below 8(15-4)/4^2-5
Sonja [21]

Answer:

The correct answer is 1/2 or 0.5

Step-by-step explanation:


8(15-4)/4^2-5

8(11)/4^2-5

Now i'm going to multiply 8 by 11

88/4^2-5

Now solve 4^2

Which is 16.

Now we have 88/16-5

Divide 88 and 16 which is 5.5.

Now minus 5.5 - 5 which gets us our answer: 0.5


6 0
3 years ago
Tanya wants to find the height of the tree. She walks away from the base of the tree so the tip of her shadow coincides with the
Vikki [24]
<span><u>Answer </u>
18 feet and 4.5 inches

<u>Explanation </u>
You are going to use the concept of similar triangle.
∆CED≡∆CBA
This is because they share the angle at C and also they both have an angle of 90o.
Let EC = X, then BE = 2.5X. So, BE = (X + 2.5X) = 3.5X
The scale factor EC/BC=x/3.5x=2/7
EC/BC=ED/BA=2/7
BA=7/2×63 in
The height of the tree = 220.5 inches. This is equal 18 feet and 4.5 inches.  
</span>
3 0
3 years ago
The area of a circle is 28.26 square meters. What is the circle's diameter?
ikadub [295]

Answer: area for circle is  πr² so πr² =28.26 and we can sub 3.14 as pi

3.14*r²=28.26 we can divide by 3.14 to get r² on it's own

r²=28.26/3.14

then we root both sides to get r on it's own

28.26/3.14=9 √9=3

and the diameter is double the radius 3*2=6 so the diameter is 6

Step-by-step explanation:

7 0
3 years ago
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