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ozzi
4 years ago
14

Please help me will mark brain list for correct answers

Mathematics
1 answer:
melisa1 [442]4 years ago
4 0

Answer:

D

Step-by-step explanation:

Total frequency: 3+5+8+6+2+1 = 25

P(8to11) = 8/25

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8 - 2x < 18 Which number line best represents the solution set for the inqeuality below
brilliants [131]

solution

here,8-2x < 18

- 2x < 18-8

- 2x <10

x <10÷ -2

x< -5

4 0
3 years ago
Select the correct answer from each drop-down menu. A system of equations and its solution are given system A x-y=7 -3x+9y=-39 s
galina1969 [7]

Answer:

Step-by-step explanation:

x-y=7

-3x+9y=-39

Divide the second equation by 3

-x +3y = -13

Add this to the first equation

x-y=7

-x +3y = -13

----------------------

0x +2y = -6

Divide by 2

2y/2 = -6/2

y = -3

Now find x

x-y = 7

x -(-3) = 7

x+3 = 7

Subtract 3 from each side

x = 4

(4,-3)

Or by substitution

x-y=7  

solve for x

x = 7+y

-3x+9y=-39

Substitute y+7 in for x

-3(7+y) +9y = -39

Distribute

-21 -3y +9y = -39

Combine like terms

-21 +6y = -39

Add 21 to each side

6y = -18

4 0
3 years ago
Hint: If Angle XYZ (Exterior Angle Y) is 115, then Angle XYW (Interior Angle Y) must be 65 since they are supplementary angles.
RUDIKE [14]
Since all angles in a triangle are equal to 180 and you already have two angles you just have to subtract.
So, 180-(65 + 45)
Simplify = 180- 110
Equals = 70
4 0
3 years ago
What are the measures of angle A,B,C and D?
Law Incorporation [45]
A) 35 B) 50. C) 85. D) 30

Do want me to explain it too?
5 0
3 years ago
Read 2 more answers
Which of the following transformations represents an isometry?
Wewaii [24]

Answer:

C

Step-by-step explanation:

Isometry only includes, rotation, translation, and reflection.

3 0
3 years ago
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