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anygoal [31]
2 years ago
12

Mr. Adams has 14 boys and 8 girls in his mathematics class. If he chooses two students at random to work on the board, what is t

he probability that both students chosen are boys? Show your work. (DO NOT GIVE LINKS)
Mathematics
2 answers:
Gwar [14]2 years ago
7 0

Answer:

\frac{13}{33}

Step-by-step explanation:

14 + 8 = 22

14/22

22 - 1 = 21

14 - 1 = 13

The next time there are 21 students and 13 boys.

13/21

14/22 × 13/21

13/33

olga55 [171]2 years ago
4 0

Answer:

7/11

Step-by-step explanation:

Total students (14+8) = 22

Boys = 14

Probability for boys,

= 14/22

= 7/11

I'm not sure. Hope, this is correct.

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Cerrena [4.2K]
The 4C matrix is obtained when all elements of matrix C are multiplied by 4. It <span>has all the same elements as C, only multiplied by 4.
Let's analyze all matrices
A. Not all elements of A can be divided by 4 (3 can not be divided by 4, the solution is not a whole number).
B. All elements of matrix B can be divided by 4, which means that B is a $C matrix (there is a matrix C which multiplied by 4 gives the matrix B).
C. Not all elements of C can be divided by 4.
D. Not all elements of D can be divided by 4.

Solution: B
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4 0
3 years ago
Two triangles in a triangle measure 65 degrees what is the measure of the third angle in the triangle
natulia [17]

Answer:

115 degrees is the third angle measure.

Step-by-step explanation:

All the angle measures of a triangle are supposed to add up to 180 degrees, so 180-65=115.

3 0
3 years ago
What is the area of a triangle with 11 1/2 height and 14ft base
bezimeni [28]

Answer:

80.5 feet

Step-by-step explanation:

The formula for a triangle is 1/2 base times height. So it is 1/2 of 14 times 11 1/2. Which is also equal to 7 times 11 1/2. That equals 80.5. I hope this helps! Please mark me brainliest!

8 0
3 years ago
Write an equation in point-slope form and in slope-intercept form.
SpyIntel [72]

The point-slope form:

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We have the points (1, -5) and (-3, 7). Substitute:

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The slope-intercept form:

y=mx+b

y+5=-3(x-1)           <em>use distributive property</em>

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\boxed{y=-3x-2}

8 0
3 years ago
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Vilka [71]

Answer:

-52

Step-by-step explanation:

This is because withdrawl means that they are taking money out meaning that they are losing money in their bank account.

8 0
2 years ago
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