PLEASE HELP with these math questions (Please don't answer if you don't know all of them)

Answers

Answer 1

Answer: sqrt (53) = 10 * sqrt (0.53)

0.53 = 64/121
sqrt (0.53) = sqrt (64)/ sqrt (121) = 8/11 = 0.7273
Therefore sqrt (53) = 10 * 0.7273 = 7.27

sqrt (108) = 10 * sqrt (1.08)
sqrt (1.08) = sqrt (676/625) = 26/25 = 1.04
Therefore sqrt (108) = 10 * 1.04 = 10.4

sqrt (128) = 10 * sqrt (1.28)
sqrt (1.28) = sqrt (289/225) = 17/15 = 1.133
Therefore sqrt (108) = 10 * 1.133 = 11.33

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2(5x-7)=2x+10 what Is the distributive property

Answers

2(5x)2(-7)=2x+10

2(5x)= 10x
2(-7)=-14

10x-14=2x+10

Solve:
10x-2x=8x

8x-14=10

14+10=24

8x=24

24/8=3

X=3

100 textbooks increased by 99%

Answers

100 textbooks increased by 99%

Do this:

First, make 99% a decimal, to do this, you must divide 99 by 100

you get 0.99

multiply 0.99 by 100

you get 99

then, add 99 to 100 and you get 199

so the total sum is 199!!

Hope this helped!

Answer:

199

Step-by-step explanation:

Ur welcome

!!! I got this from a test

A spinner number 1-10 is spun. Each number is equally likely to be spun. What is the probability of spinning: 1. an odd number OR a power of three?2. a number less than 8 OR a divisor of 15?

Answers

Answer:

B) Probability of number less than 8 OR a divisor of 15 = 1

Step-by-step explanation:

Given that the spinner number 1-10, therefore sample space = 10.

Each number is equally likely to be spun = 1/10 for each number.

A) probability of having an odd number OR a power of three?

Probability of odd number = number of odd number from 1-10 / sample space

Number of odd number = 5 {1,3,5,7,9}

Probability of odd number = 5/10 = 1/2

Probability of power of three = number of power of three from 1-10 / sample space

power of three from 1-10 = 1 (1x1x1) and 8 (2x2x2)

number of power of three from 1-10 = 2 {1,8}

Probability of power of three = 2/10

probability of having an odd number OR a power of three = probability of having an odd number + a power of three

probability of having an odd number OR a power of three = 5/10 + 2/10 = 7/10

B) probability of number less than 8 OR a divisor of 15

Number less than 8 = 7 {1,2,3,4,5,6,7}

Probability of number less than 8 = 7/10

Divisor of 15 from 1-10 = 3 {1,3,5}

Probability of divisor of 15 = 3/10

Probability of number less than 8 OR a divisor of 15 = probability of number less than 8 + a divisor of 15

Probability of number less than 8 OR a divisor of 15 = 7/10 + 3/10 = 10/10 = 1

The Probability of having an odd number OR a power of three is 7/10

The probability of a number less than 8 OR a divisor of 15 is 1.

What is the probability?

Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.

The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.

P(E) = Number of favorableoutcomes / total number of outcomes

It is given that the spinner number 1-10, So sample space = 10.

Each number is equally likely to be spun

A) probability of having an odd number OR a power of three

Probability of odd number = number of odd numbers / sample space

Number of odd number = {1,3,5,7,9}

Probability of odd number = 5/10

= 1/2

Probability of power of three = number of power of three / sample space

power of three from 1-10 = 1 and 8

number of power of three = 2

Probability of power of three = 2/10

Probability of having an odd number OR a power of three = probability of having an odd number + a power of three

= 5/10 + 2/10

= 7/10

Therefore, the probability of having an odd number OR a power of three is 7/10

B) Probability of number less than 8 OR a divisor of 15

Number less than 8 = {1,2,3,4,5,6,7}

Probability of number less than 8 = 7/10

Divisor of 15 from 1-10 = {1,3,5}

Probability of divisor of 15 = 3/10

Probability of number less than 8 OR a divisor of 15 = probability of number less than 8 + a divisor of 15

= 7/10 + 3/10

= 10/10

= 1

Therefore, the Probability of a number less than 8 OR a divisor of 15 is 1.

Learn more about probability :

brainly.com/question/795909

The student union at school has MP3 players pre-loaded with audio and digital books to check out. When the student starts downloading new books at 9:00 am, there are 15 already loaded. When he checks at noon, there are 30 books completely loaded. Assuming that the computer downloads books at a consistent rate, how many complete books will have downloaded at 3:00 pm?Write a function of books downloaded, y, based on time passed, x (in hours), as well as the total number of books that will be completed by 3:00 pm.

A
y = 10x + 5; 45 complete books

B
y = 15x + 15; 65 complete books

C
y = 5x + 15; 45 complete books

D
y = 15x + 10; 100 complete books

Answers

The correct option is C. The function should be:

y = 5x + 15

This function gives the correct number of books downloaded after 3 hours, and the slope is also 5 books per hour.

The other options are incorrect.

Option A: y = 10x + 5. This function does not give the correct number of books downloaded after 3 hours.

Option B: y = 15x + 15. This function gives the correct number of books downloaded after 3 hours, but the slope is not 5 books per hour.

Option D: y = 15x + 10. This function does not give the correct number of books downloaded after 3 hours.

The answer is b because over time the 5x will turn into 65 books

One zero of f(x)=x^3-2x^2-5x+6 is 1 what are other zeros of the function

Answers

Answer:

The other zeros are -2 and 3.

Step-by-step explanation:

As 1 is a zero then (x - 1) is a factor so we divide:

x - 1 )x^3-2x^2-5x+6(x^2-x-6

x^3-x^2

-x^2-5x

-x^2+x

-6x+6

...........

x^2 - x - 6 = 0

(x - 3)(x + 2)

x = -2, 3.

Answer:

-2 and 3

Step-by-step explanation:

Given one zero of f(x)=x^3-2x^2-5x+6 to be 1 this means that x-1 is a factor of the polynomial x³-2x²-5x+6

Before we can get the other two factors. We need to divide the polynomial function by x-1 and factorize the resulting quotient as shown in the attachment.

Quotient Q(x) = x²-x-6

Factorizing this function

x²-3x+2x-6 = 0

x(x-3)+2(x-3) = 0

(x+2)(x-3) = 0

x+2 = 0 and x-3 = 0

x = -2 and x= 3

Therefore the other zeros of the function are -2 and 3

The box plot shows ages of randomly sampled attendees at two different movies. Check all statements that apply to Movie A.A) The range of the ages are greater
B) The ages are more consistent
C) The interquartile range is 15
D) The median ages of attendees are greater

Answers

Option B. is correct. Using box plot, the statement that apply to movie A is the ages are more consistent.

What is box plot?

A box plot is "a special type of diagrams that shows quartiles in a box and the lines extending from the lowest to the highest value".

According to the question,

The box plot shows ages of randomly sampled attendees at two different movies.

The statement A. The range of the ages are greater. This statement is false because in the box plot movies A is range is 35 (subtract highest value from lowest value) that is not greater. Thus, this statement is false.

Statement B. The ages are more consistent. This statement is true. To find consistency in box plot using hypotheses test we get consistency. Thus, the ages are more consistent.
Statement C: Using value in box plot the interquartile range is Q₃ - Q₁. Where Q₃ - Q₁ = 42.5 - 17.5 = 25. Thus statement is false.
Statement D: In box plot the median ages of attendees are greater. This statement is false.

Hence, the ages are more consistent in box plot shows age of randomly sampled attendees at two different movies.

Learn more about box plot here

brainly.com/question/1523909

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Answer:

Step-by-step explanation: