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blsea [12.9K]
3 years ago
12

4(x+7)-9 (x+6)-5+9 7a+21 5a+30

Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0
35 but dubble check to be sure
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Hannah has a bag containing 2 Red, 4 purple, 4 Blue and 2 Green
juin [17]

Answer:

1/18

Step-by-step explanation:

there are 12 marbles in the bag

P(choose red) = 2/12 = 1/6

P(choose blue after replacement) = 4/12 = 1/3

P(choose red, then blue with replacement) = (1/6)(1/3) = 1/18

7 0
3 years ago
there are 103 students eating lunch in the cafeteria. each table seats 4 students. all the tables are full except for 1 table. h
natta225 [31]
4*25= 100. There are 26 tables. At each of the 25 tables 4 people are sitting. Which means 100 people are sitting in complete tables of 4 people. That means that at the 26th table 3 people are sitting. 103-100= 3. Hope that helps. :) 
6 0
3 years ago
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If a questiong does not tell you to answer in terms of pi do you round
Wittaler [7]
Yes, most likely. You may also find it helpful to plug the pi symbol along with your answer into your (scientific) calculator as it will give you a more accurate response.
8 0
3 years ago
A mountain bike has a diameter of 26 inches. To the nearest foot how far does the tire travel when it makes 32 revolutions?
Tcecarenko [31]
Hello!

You have to find the circumference

You use the equation

2 \pi r

r is radius which is half the diameter

This gives us 81.68

Multiply this by 32

81.68 * 32 = 2613.76

This is 217.8133333 feet

The answer is 217.8133 feet

Hope this helps!
8 0
3 years ago
Write the point-slope form of the equation of the line that passes through the point (-1, 5) and has a slope of -1. Include your
ivolga24 [154]

Answer:

y = -x + 4

Step-by-step explanation:

The point-slope formula for a straight line is

y – y₁ = m(x – x₁)

x₁ = -1; y₁ = 5; m = -1     Substitute the values

  y – 5 = -1(x + 1)          Remove parentheses

  y – 5 = -x - 1              Add 5 to each side

       y = -x + 4

The graph is a straight line with a y-intercept at y = +4 and a slope = -10/10

= -1.

8 0
3 years ago
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