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lys-0071 [83]
3 years ago
9

21 = m + 9; m= 11 solution

Mathematics
1 answer:
Korvikt [17]3 years ago
8 0
The solution is not 11 it should be 12.21-9=12
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PLLZZZ ANSWER
Nonamiya [84]

Answer:

B.

Step-by-step explanation:

Total coins = 11 ( 3 + 4 + 4 = 11).

The probability of picking a nickel first = 3/11 ( 4 nickels out of 11 total).

The probability of picking a dime second = 4/10 = 2/5 ( 3 dimes out of 10 coins left).

The probability of picking the third coin as a quarter = 4/9 ( 3 quarters out of 9 coins left).

The probability of picking all three in that order = 3/11 x 2/5 x 4/9 = 8/165

4 0
3 years ago
What is the slope of the line given (1,1) and (0,0)
yaroslaw [1]

The slope of the line passing the points (1, 1) and (0, 0) is 1

<h3>Slope of a line</h3>

The formula for calculating the slope of a line is expressed as

Slope = y2-y1/x2-x1

Given the coordinate points (1, 1) and (0, 0)

Substitute the given coordinate points

Slope = 0-1/0-1

Slope = -1/-1

Slope =1

Hence the slope of the line passing the points (1, 1) and (0, 0) is 1

Learn more on slope of a line here: brainly.com/question/3493733

#SPJ1

3 0
2 years ago
Please help me with these problems; geometry is really getting on my nerves. T-T
ivolga24 [154]
For #19 part A :

By vertical angles and then same side interior angles 3x + 2x = 180
5x = 180
x = 36

For #19 part B:

You are correct with the 35, but you missed the fact that the 105 angle is supplementary with the unknown angle inside the triangle. So:

180 - 105 = 75

Then:

180 = 35 + 75 + x
180 = 110 + x
x = 70

Last question:

Do you know what the symbol means? Text me and tell me and I can answer it for you. :)
7 0
3 years ago
Read 2 more answers
A. 2(x + 1) - 7 = 5<br> x=?
vovikov84 [41]

Answer:

x=5

Step-by-step explanation:

2x+2-7=5

2x-5=5

2x=10

x=5

8 0
3 years ago
Given: line hg is the perpendicular bisector of segment JK. Which conclusion is valid?
Varvara68 [4.7K]
JG = GK 
Angle JGH is a right angle 
Angle HGK is a right angle assuming it is drawn like this (sorry i did my best to draw it):

                 H
                  l
                  l
                  l
                  l
J--------------l--------------K
                 G

6 0
3 years ago
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