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Dafna11 [192]
3 years ago
15

PLEASE HELP ITS DUE IN 5 MINUTES

Mathematics
1 answer:
babunello [35]3 years ago
8 0
Y - 18 = -1.5(x - 12)

I hope this helped out! Have a nice day :)

(Good luck!)
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PLEASE HELP NEED THIS NOW.
katovenus [111]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Two Physics classes at Jefferson High School took the same quiz. Mr. Spears had 20 students in his class with a mean score of 80
andriy [413]

Answer:

The mean score for all students on the quiz was 86.

Step-by-step explanation:

This question is solved by a weighed average.

To find the weighed average, we add the values multiplied by their weight, and after that we divide by the sum of weights.

In this problem, we have that:

Mr. Spears had 20 students in his class with a mean score of 80.

So 80 has a weight of 20.

Mrs. Guyton's class of 30 students had a mean score of 90.

So 90 has a weight of 30.

Overall, what was the mean score for all students on the quiz

M = \frac{80*20 + 90*30}{20 + 30} = 86

The mean score for all students on the quiz was 86.

4 0
3 years ago
A class consists of 99 women and 64 men. If a student is randomly selected, what is the probability that the student is a woman
lukranit [14]

Answer:

\frac{99}{163}

Step-by-step explanation:

probability (P) is calculated as

P = (outcome desired ) ÷ ( total number of outcomes

total outcomes = 99 + 64 = 163

desired outcome = 99

P( a woman ) = \frac{99}{163}

8 0
2 years ago
Find the area.of the shape below
Marta_Voda [28]

Answer: 464 km²

Step-by-step explanation:

      We will break this shape up into two parts. You can do this in two different ways, see attached for how I did it.

      Area of a rectangle is A = L * W;

40 km * 9 km = 360 km²

13km * 8 km = 104 km²

     Now we will add them together for total area:

360 km² + 104 km² = 464 km²

6 0
2 years ago
Read 2 more answers
Use the net to find the surface area of the prism
arsen [322]

Answer

364 i think

Step-by-step explanation:

find the area of triangles + area of rectangles

area of triangles: b x h x 1/2

6 x 4 x 1/2

= 12

but two triangles, so . double it and then you get 24 for the two triangles areA

area of rectangles;

l x w

22 x 6

= 132

but two up and down rectangles, so double it = 264

now back rectangle:

l x w

22 x 4

= 88

Add it all up together and you have the surface area!

Surface Area - The area of the surface of the 3D object, NOT volume

pls mark brainliest unless someone else answered it or im wrong thank you! :D

7 0
2 years ago
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