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BaLLatris [955]

3 years ago

13

How many different committees can be formed from 9 teachers and 30 students if the committee consists of 4 teachers and 2 stude

nts?

1 answer:

lora16 [44]3 years ago

8 0

Answer:

Step-by-step explanation:

number of committees=9C4×30C2

=(9×8×7×6)/(4×3×2×1)×(30×29)/(2×1)

=63×30×29

=54810

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Write the ratio 9:4.5 in the form n:1

pickupchik [31]

Answer:

2:1

Step-by-step explanation:

9 is double 4.5

6 0

3 years ago

What is the slope of the line that passes through the points (-10, 8) and

vlada-n [284]

Answer:

$slope=3$

Step-by-step explanation:

Use the following equation the find the slope:

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}} =\frac{rise}{run}$

Rise over run is the change in the y-axis over the change in the x-axis from one point to the other. This is also known as the "slope". Insert the known values:

$(-10_{x1},8_{y1})\\\\(-15_{x2},-7_{y2})\\\\\\\frac{-7-8}{-15-(-10)}\\\\\frac{-7-8}{-15+10}$

Solve:

$\frac{-7-8}{-15+10}=\frac{-15}{-5}$

Simplify. Two negatives make a positive:

$\frac{-15}{-5}=\frac{15}{5}$

Simplify fraction by dividing top and bottom by 5:

$\frac{15}{5}=\frac{3}{1} =3$

The slope is 3.

:Done

8 0

3 years ago

Write the expression 12(-2) in simplest form

wariber [46]

Answer:

-24

Step-by-step explanation:

For this question, all you have to do is multiply the number outside the bracket by the number inside the bracket.

12 x -2

The law of negatives says that when you multiply a positive number by a negative number, the answer will be negative

∴ the answer will be negative

all that's left now is to multiply 12 by 2

12 x 2 = 24 (remember the answer will be negative)

answer: -24

I HOPE THIS WAS HELPFUL :-)

3 0

4 years ago

What is the answer ??

FromTheMoon [43]

Answer: 9 i think

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10

Law Incorporation [45]

I think the answer to y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10 is B. Y=1/2. Y•15; 12/4.

3 0

3 years ago