MATHEMATICS HIGH SCHOOL

Please help and answer

Answers

Answer 1

Answer:

Answer: choice C

Step-by-step explanation:

sorry if wrong

Answer 2

Answer:

Answer:

Step-by-step explanation:

because its c but its c

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(NEED HELP)Your friend made $324 babysitting last year.This year she made 296% of what she made last year.How much more did your friend make this year?

Answers

The percentage is calculated by dividing the required value by the totalvalue and multiplying by 100.

Requiredpercentage value = a

total value = b

Percentage = a/b x 100

The moreamount made this year is $635.04

What is a percentage?

The percentage is calculated by dividing the required value by the totalvalue and multiplying by 100.

Example:

Requiredpercentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Your friend made $324 babysitting lastyear.

This year she made 296% of what she made lastyear.

This means,

The amount this year.

= 296/100 x 324

= $959.04

The difference in the amount.

= $959.04 - $324

= $635.04

The difference in the amount can also be calculated as,

= 296% - 100%

= 196% more this year.

So,

196% of $324

= 196/100 x 324

= $635.04

Thus,

The moreamount made this year is $635.04

Learn more about percentages here:

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Answer:

$635

Step-by-step explanation:

She made a total of $959 anad last year she made $324 so you then subtract the ammounts because the problem wants to know how much MORE she made.

If √6 is the geometric mean between 4 and another number, then the number is

Answers

If you have two numbers x, y. The geometric mean is: √xy

For 4 and x. Geometric Mean = √4x and this is equal to √6

   √4x = √6 Square both sides. The square root disappears.

   4x = 6
   x = 6/4 = 3/2 = 1.5

The other number is 1.5.

the area of the rectangle is 85 cm. express the perimeter of the rectangle is function of the width x.

Answers

$the \ width : \ x \n the \ length : \ y \n The area : \ A=85 \n \nA=xy \n \n85=xy\n \ny= (85)/(x)$

f(x)=85-2(y) I think it is so .

Given: △ABC, m∠B=90° AB=12, BC=16, BK ⊥ AC . Find: AC and BK. DESPERATE! Please help! I know that AC is 20 if that helps. I have NO idea how to find BK. I will be so thankful for any help you can give. If you get the right answer I'll give max points and BRAINLIEST!!!! Thank you so much :)

Answers

hey there!

I think i might be able to help.

AC:20, BK:9.6

try it out!

i think so. it 6.63

In how many ways can 50 cards be chosen from a standard deck of 52 cards using permutations

Answers

In 26*51! ways we can pick 50 cards from a deck of 52 cards using permutation.

What is Permutation?

Permutation is mathematical technique to get possibiltiy in arrangement with replacement.

We can choose or pick r objects from n objects using permutation in $^nP_r$ ways.

$^nP_r=(n!)/((n-r)!)$

n! = n*(m-1)*......*3*2*1

We can write n! = n(n-1)!

Total number of matters or cards = 52

We have to pick 50 cards using permutation or replacement.

The required number of ways $=^(52)P_(50)=(52!)/((52-50)!)=(52*51!)/(2!)=26*51!$

Hence we can choose 50 cards from deck of 52 cards in 6*51! ways.

Learn more about Permutation here -

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Permutation of 50 is 50! or 50*49*48*47*46.... and so on. I doubt they actually want you to find out what 50*49*48... is, so I'd just put 50!

A game spinner has regions that are numbered 1 through 8. if the spinner is used twice, what is the probability that the first number is a 3 and the second is a 6? a. 116 b. 164 c. 964 d. 23

Answers

The probability that the first number is a 3 and the second is a 6 is 1/64

What is probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Given:

spinner had region numbered from 1 to 8

So, the probability on the spinner has an equally likely chance of being selected = 1/8.

P(3) = 1/8

P(6) = 1/8

Thus, probability that the first number is a 3 and the second is a 6

= (1/8) × (1/8)

= 1/64