What is the answer to 12-2u=9u+45

Using the concept of combination, the value of the expression 9C4 is 126

Recall the combination formula :

[tex]9C4 = \frac{9!} {(9-4)!4!} [/tex]

[tex]9C4 = \frac{9 \times 8 \times 7 \times 6} {4 \times 3 \times 2 \times 1} [/tex]

[tex]9C4 = \frac{3024} {24} = 126 [/tex]

Therefore, the value of the expression 9C4 is 126.

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Answer:

D.

Step-by-step explanation:

Answer:

Slope = -3

Step-by-step explanation:

The slope is the change in y over the change in x

The slope formula is m=y₂-y₁/x₂-x₁ (y over x)

So, plug in your coordinates (the subscript represents the order in which your points are going to be subtracted in)

So, you would get m=-2-4/1-(-1)

Simplify (first subtract the top, then subtract the bottom)

This would get you to -6/2 (remember your rules: a negative and a negative makes a positive)

-6/2 would get you to -3

Answer:

the die: 1/2, coin: 1/2

Step-by-step explanation:

There are 6 sides on a die and 6 numbers, 3 are even numbers which means 3/6. simplify it to get 1/2

there are 2 sides on a coin, one is heads. Therefore, the probability is 1/2

The fractional probability that the die lands on an even number and the coin is heads is [tex]\frac{1}{4}[/tex].

"Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty."

Given, a die is tossed and a coin is flipped.

Therefore, the number of outcomes in case of die is 6 and the number of favorable outcomes is 3.

Hence, in case of the die, probability of getting an even number is P(A) = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex].

Again, the number of outcomes in case of the coin is 2 and the number of favorable outcomes is 1.

Hence, in case of the coin, probability of getting head is P(B) = [tex]\frac{1}{2}[/tex].

Now, the fractional probability that the die lands on an even number and the coin is heads is = P(A) × P(B) = [tex]\frac{1}{2}[/tex] × [tex]\frac{1}{2}[/tex] = [tex]\frac{1}{4}[/tex].

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Answer:

25 cups of apple juice and 10 sparkling water 

Step-by-step explanation:

There are 7 cups of sparkling juice in each batch, since 5 + 2 = 7. То make 35 cups Elena will need 5 batches since 5 x 7 = 25. 5 batches mean 25 cups of apple juice and 10 cups of sparkling water

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Answer:

=1232cm^3

Step-by-step explanation:

Volume of a cylinder=πr^2h

Where r=radius=diameter/2=14/2=7 cm

h=height=8 cm given

π=22/7

Volume of cylinder=πr^2h

=22/7x7x7x8=154x8=1232cm^3

Answer:

1231.5

Step-by-step explanation: the other answer is wrong this is right

Answer:

The answer is B

Step-by-step explanation:

If I got it right on edg, you'll get it right on edg, unless we are talking about two different questions--- which we are not. Same question, right answer.

Answer:

b

Step-by-step explanation:

bc i said

Answer:

Step-by-step explanation:

I need the expressions, please.

Answer:

The population of a town grew from 20,000 to 28,000. The continuous growth rate is 15%. The equation represents the situation, where t is the number of years the population has been growing. About how many years has the population of the town been growing? Use a calculator and round your answer to the nearest whole number.

I found some info on a Quiz maybe this can help a bit

Have a Nice Day!

Answer:

y = -52x + 480

Step-by-step explanation:

Let us assume the number of pages left be x

And, the number of hours is x

According to the question

Data given is as follows

Number of hours 1.5 and 5

Total pages 480

Left pages 402

Based on the above information,

The computation is shown below;

Pages read by Shriya in 1.5 hours is

= Total pages in the book - left pages to read

= 480 pages - 402 pages

= 78 pages

And, there is 1.5 hours

So in one hour she read

= 78 pages ÷ 1.5 hours

= 52 pages per hour

So, the equation is

y = -52x + 480

Answer:

its a or y = -3/4x -3

Step-by-step explanation:

slope-intercept form is y = mx + b where m is the slope and b is the y-intercept. the line intercepts at the y at point -3 so the y-intercept is -3 the slope is -3/4 and you just plug them into the slope intercept form

Answer:

3/2

Step-by-step explanation:

Answer:

[tex] \frac{4x + 3}{x + 5} [/tex]

Step-by-step explanation:

add x and 3x

Answer:

The books can be arranged in 170,544 ways

Step-by-step explanation:

This is a combination question since we are arranging

We simply want to find the number of ways to select 15 books out of 22 for arrangement

Mathematically, that will be;

22 C 15 = 22!/(22-15)!15! = 170,544 ways

Answer:

35 students

Step-by-step explanation:

Find 25% of 500:

Find 18% of 500:

Find the difference:

So, 35 more students prefer video games to bike riding.

I hope this helps!

Answer:

you are the only person I can be of assistance to

Step-by-step explanation:

ok is the best friends to come in the medicine and the

Answer:

1, 148, 149.

your welcome

Answer:

E,B,F≥150

Step-by-step explanation:

150≥150

152≥150

151≥150

Answer:

d

Step-by-step explanation:

Answer:

The second one

Step-by-step explanation:

Hope this helps! Consider brainiest!

Answer:

the 4th imagen math box

Step-by-step explanation: trust me pleses

Answer:

y/x of point A=y/x of point B

Step-by-step explanation:

Answer:

a) $6x+$4y=36

b) 6 fries

Step-by-step explanation:

b)$6(2)=12

36-12=24

24/4=6 fries

Given:

Lee drew five rectangles as shown on this coordinate grid .

To find:

The correct statement.

Solution:

From the given diagram, it is clear that,

Dimensions of rectangle x are 6 by 3 units.

Dimensions of rectangle A are 7 by 3 units.

Dimensions of rectangle B are 6 by 3 units.

Dimensions of rectangle C are 3 by 6 units.

Dimensions of rectangle D are 6 by 4 units.

Dimensions of rectangle x and B are same and clearly it can be translation or rotation about the origin.

Dimensions of rectangle x and C are same but only rotation is not sufficient to get rectangle C from rectangle x.

Dimension of rectangle x, A and D are different, so they are not congruent and we cannot get rectangle A and D by rotation, reflection and translation.

Therefore, the correct option is B.

Answer:

y = - 2 - x

Step-by-step explanation:

Since x + y = - 2, In the other side, it would be...

y = - 2 - x

Hope this helps :)

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Answer:

The fraction of the book that Rena read every day is [tex]\frac{4}{27}[/tex]

Step-by-step explanation:

Rena spent 6 days reading her book completing the same fraction of the book every day and you want to know the fraction of the book she read each day. Knowing that Rena had a total of 8/9 of her book read after 6 days, then you simply divide the total amount of the book read during those days by 6, the number of days:  

[tex]\frac{8}{9}[/tex]÷6

To divide a fraction by a whole number, you must convert the whole number into a fraction, finding the reciprocal of that fraction, and multiply it by the first fraction. That is, you must find the reciprocal of the number that is after the division symbol; and then you multiply the first number (the one before the division symbol) by the reciprocal of the second number (the one after the division symbol). Remember that to find the reciprocal of a number, you simply have to change the numerator and denominator of the number.

Since 6 can be considered to be a fraction equal to [tex]\frac{6}{1}[/tex], by inverting the number, then you get [tex]\frac{1}{6}[/tex]

Then:

[tex]\frac{8}{9}[/tex]÷6= [tex]\frac{8}{9} *\frac{1}{6}[/tex]

Now you multiply the numerators and denominators of the fraction to get the new numerator and denominator of the final solution.

[tex]\frac{8}{9}[/tex]÷6= [tex]\frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}[/tex]

Finally, simplifying the fraction:

[tex]\frac{8}{9}[/tex]÷6= [tex]\frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}=\frac{4}{27}[/tex]

So:

[tex]\frac{8}{9}[/tex]÷6= [tex]\frac{4}{27}[/tex]

The fraction of the book that Rena read every day is [tex]\frac{4}{27}[/tex]

Answer:

[tex]x=-\frac{3}{4}[/tex]

Step-by-step explanation:

Answer:

22 including one at the end of the beach

Step-by-step explanation:

Total length of the beach = 13.2 kilometers

If lifeguards are stationed every 0.6 kilometers, INCLUDING one at the end of the beach

Number of lifeguards in the beach = Total length of the beach / distance interval of each lifeguards

= 13.2 kilometers / 0.6 kilometers

= 22

Number of lifeguards in the beach = 22 including one at the end of the beach

Answer:

(-4, -2)

Step-by-step explanation:

(x, y)

You plug in the number where x is, so that’s going to be -4.

You plug in the number where y is, so that’s going to be -2.

I hope this helps some!

Answer:

Step-by-step explanation:

-16 + 12s - 22t + 6u

Answer:

B=30,000

Y=The Plane's altitude

M= -2,000

X= Minutes

Equation: y=-2,000x+30,000

Slope= ?

Y-intercept= the point where you start at

what is the altitude after 10 minutes?=10,000

How Long does it take to get to 0 altitudes?=15 (Minutes)

Step-by-step explanation:

What are the choices for slope

In sixty days, assuming that Kevin shoots exactly fifty baskets everyday, he'd have shot 3,000 baskets. (multiply 60 x 50 = 3,000)

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