MATHEMATICS HIGH SCHOOL

Which expression represents the product of an unknown number and 19?A.

19 ÷ n


B.

n + 19

C.

n – 19

D.

19 • n

Answers

Answer 1
Answer: a product is the result of multiplying
D

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Need help pleaseeeee:)
Square root of x to the 6th power over y to the 4th power
If f(x)=x^2-5 and g(x)=6x then g(f(x)) is equal to
A cereal company packs its oatmeal into cylindrical containers. The height of each container is 10 inches, and the radius of the bottom is 4 inches. What is the volume of the container to the nearest cubic inch?

What adds to get 12 and multiply to 45

Answers

the answer is 3 and 15
3! Because: 

3 + 3 + 3 + 3 = 12 
and 
3 x 15 = 45

34% of what number is 51

Answers

150%
You would get 150 and multiply it by (34/100). 
In other words, do this: 150 x 0.34 (The 0.34 represents 34%. 0.76 would be 76%, etc) 
This gives you: 51 

Hope I helped!:)

Which statement is true about every rectangular pyramid?Each lateral face has an area less than the area of the base.
At least two of the lateral faces are congruent.
Each lateral face has the same height.
At least one of the faces has a whole number base or height.

Answers

Answer:

At least two of the lateral faces are congruent.

Step-by-step explanation:

Because the words "at least" are used this means that at a minimum 2 of the faces are congruent. Because the base is in the shape of a triangle, this will definitely be true.

hope this helps:)

Answer:

At least two of the lateral faces are congruent.

Step-by-step explanation:

Because the words "at least" are used this means that at a minimum 2 of the faces are congruent. Because the base is in the shape of a triangle, this will definitely be true.

hope this helps:)

Find the probability of each event. Answer IN FRACTION form.A jar contains eight black buttons and five brown buttons. If eight buttons are picked at random, what is the probability that all of them are black?

Answers

Answer:

= 8/6435

Step-by-step explanation:

Number of black balls = 8

Number of Brown balls = 5

Total number of balls = 8+5 = 13

Pr (8 balls picked at random are black ) =

Number of black balls / Total number of balls.

1st Pr ( 8 balls picked are black) = 8/13

Pr (2nd random pick) = 7/12

Pr (3rd random pick) = 6/ 11

Pr (4th random pick) = 5/10

Pr (5th random pick) = 4/9

Pr (6th random pick) = 3/7

Pr (7th random pick) = 2/6

Pr (8th random pick) = 1/5

Pr (8 balls picked at random are black ) = 8/13 * 7/12 * 6/11 * 5/10 * 4/9 * 3/7 * 2/6 * 1/5

= 8/13 * 7/12 * 6/11 * 1/2 * 4/9 * 3/7 * 1/3 * 1/5

= 8/6435

But pls note, I solved it such that there wasn't a replacement after each pick.

Math is fun

Round each number to the nearest hundredth. what is the best estimate for the answer to 434.657 102.494?

Answers

434.657,  hundredth digit is 5, after the 5 is 7, since the 7 is more than 5, we add 1 to the hundredth digit 5, to make it become 6.

434.657 ≈ 434.66   to the nearest hundreth.

102.494,  hundredth digit is 9, after the 9 is 4, since the 4 is less than 5, we the hundredth digit remains as 9.

102.494  ≈ 102.49  to the nearest hundreth.

Hope this helps.

Answer:

102.49 hope helps!!

Step-by-step explanation:

The area of a rectangle is 21 m squared, and the length of the rectangle is 1 m less than twice the width. Find the dimensions of the rectangle. Help?

Answers

This should be right because I checked it afterwards
Width=W
Length=2W-1
The equation is as follows
W(2W-1)=21
2W^(2)-W=21
Subtract 21 from each side
2W^(2)-W-21
Group them/put them in parentheses..can't think of the right word right now
(2W-7)(W+3)
-7=I7I
You only do this for the first parenthese, 7÷2W=3.5
W=3.5
If W=3.5 then 2W-1⇒2×3.5-1⇒7-1⇒6
Length=6
If W=3.5 and L=6, then W(2W-1)=21
3.5(2×3.5-1)=21
Solve in parentheses first
3.5(7-1)=21
3.5(6)=21
3.5×6=21
The width is 3.5
The length is 6
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