Mathematics High School

Find the area of the circle to the nearest hundredth. 4 inches

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Answer 1

Answer:

i hope this is right A=50.27

Step-by-step explanation:

Related Questions

I need help cand someone help me find this answer

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Answer:

725.7 m²

Step-by-step explanation:

A=2πrh

r=16 1/2 ÷ 2 = 8 1/4

A= 2π(8.25)(14)=725.7

Solve.
a-5/a+4=5/4

a=0
a=-1
a=-9
a=-40

Answers

Answer:

-1

Step-by-step explanation:

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What is the
range of the function on the graph?

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All real numbers.....

2
A pack of 5 of board games costs $75.
If there is a direct proportion between the price (y) and number of board games (2), which equation represents the
situation?
y = 75.2
By = 52
C y = 2
Dy = 152

Answers

Answer:

one board game cost 15 dollars

75/5=15

15y

y = number of board games and 15= the price of each board game

so to calculate any number of board games bought just input the number of board games bought for y in the expression 15y and you will get the price.

Step-by-step explanation:

Helppp pleaseeee I really need help

Answers

Answer:

Step-by-step explanation:

[tex] = \frac{(2c {}^{2} + c - 2) }{(c + 1)} \\ rationalise \: the \: denominator \\ = \frac{(2 {c}^{2} + c - 2)(c - 1)}{(c + 1)(c - 1)} \\ = \frac{(2 {c}^{3} - 2 {c}^{2} + {c}^{2} - c - 2c + 2) }{( {c}^{2} - {1}^{2} )} \\ = \frac{(2 {c}^{3} - {c}^{2} - 3c + 2 )}{( {c}^{2} - 1) } [/tex]

A computer program randomly selects a month of the year. What is the sample space for this experiment?

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Answer:

The sample space of a random experiment is the collection of all possible outcomes. An event associated with a random experiment is a subset of the sample space. The probability of any outcome is a number between 0 and 1.

Step-by-step explanation:

The scatter plot shows the first-year income for 15 people, based on the number of years of school they each had after high school. A line of best fit
was drawn through the data. The equation for the line is y = 8x + 15.
Which statement describes the meaning of the y-intercept for the line of best fit?

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Answer:

Step-by-step explanation:

the answer is C. because if you notice how on the scattered graph the numbers go from 0-9 and 0-90. on C. it says 0years which will have an income of 8,000 dollars. divide and multiply and then switch flip.

Answer:

Step-by-step explanation:

PLEAASE HEELP! Will mark brainly!!!

Answers

Please repost... picture is all black

Triangle ABC has vertices A(-2,0), B(2,5), C(3, 1). The reflection of the image of triangle ABC is triangle A'B'C' with vertices A(-2,0), B12, -5), C73.
-1). What is a rule that describes the reflection?

Answers

Answer: Reflection about x-axis

Step-by-step explanation:

Given

Initially, vertices are [tex]A(-2,0), B(2,5),C(3,1)[/tex]

After reflection they become [tex]A(-2,0),B(2,-5),C(3,-1)[/tex]

It is clear that the x coordinate remains unchanged and the y coordinate changes its sign. It occurs when reflection is done about the x-axis.

For example, when (a,b) is reflected about the x-axis, it becomes (a,-b).

So, here reflection is being done about the x-axis.

My brainy brother and sister added their ages together and got 15. When they multiplied their ages together, they got 54. How old is the older one between the two of them?

Answers

Given:

Sum of ages of brother and sister = 15

Product of their ages = 54

To find:

How old is the older one between the two of them?

Solution:

Let x be the age of brother and y be the age of sister.

Sum of ages of brother and sister = 15

[tex]x+y=15[/tex]

[tex]x=15-y[/tex] ...(i)

Product of their ages = 54

[tex]xy=54[/tex]

[tex](15-y)y=54[/tex] [Using (i)]

[tex]15y-y^2=54[/tex]

[tex]0=54-15y+y^2[/tex]

Splitting the middle term, we get

[tex]54-15y+y^2=0[/tex]

[tex]54-9y-6y+y^2=0[/tex]

[tex]9(6-y)-y(6-y)=0[/tex]

[tex](6-y)(9-y)=0[/tex]

Using zero product property, we get

[tex](6-y)=0\text{ and }(9-y)=0[/tex]

[tex]y=6\text{ and }y=9[/tex]

If [tex]y=6[/tex], then using (i), we get

[tex]x=15-6[/tex]

[tex]x=9[/tex]

If [tex]y=9[/tex], then using (i), we get

[tex]x=15-9[/tex]

[tex]x=6[/tex]

Therefore, the age of older one is 9, the age of younger one is 6 and the difference between their ages is 3.

the mean of 5 numbers is 8.
one more number is added to the group.
the mean of the numbers is 9.
what number was added to the group

Answers

Answer:

Step-by-step explanation:

Sum of the first five numbers = 40

The sum of the six numbers should equal 9 x 6 = 54

So, you would do 54 - 40 = 14

Hope that helps! :)

-Aphrodite

Find the mean, median, and interquartile for the data set below.
17, 23, 8,5,9,16, 22, 11, 13, 15, 17, 18

Answers

Answer:

The Mean 14.5 and the Median is 15

Step-by-step explanation:

For the Mean you just add all the numbers up and divide on how many you have. And the Median the middle

Answer:

Below in bold.

Step-by-step explanation:

First arrange in ascending order:

5 8 9 11 13 15 16 17 17 18 22 23

Median = mean of the middle 2 values = (15+16)/2 = 15.5.

Mean = Sum of all the values / 12 = 174/12 = 14.5.

Interquartile range = upper quartile - lower quartile = 17 - 11 = 6.

To add the fractions 3/4 and 7/12 what must be done first?

A. reduce the fractions to lowest terms
B. change to improper fractions
C. make the numerators the same
D. find a common denominator

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Answer is. D Find a common denominator

you have three sides and three angles what am i

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The answer is You are a triangle

PLSS HELP: Find the value of w

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Answer:

[tex] \frac{9}{w} = \frac{15}{5} \\ w = 45 \div 15 = 3[/tex]

Help please please help me I really really need help

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Answer:

(-3, -2)

Step-by-step explanation:

To find the solution of two functions, you need to know at which x and y value they are equal. So solve for x and y when 1/3x - 1 = 2x + 4

1/3x - 1 = 2x + 4

First, subtract 2x from both sides.

-5/3x - 1 = 4

Add one to both sides.

-5/3x = 5

Multiply both sides by the reciprocal of -5/3 (3/-5)

x = -3

Then, substitute x into one of the equations to get y.

1/3(-3) - 1

-1 - 1 = -2

So drag the dot to the point (-3, -2)

Toby and Ahmed are eating pizza. Toby eats 1/2 of the pizza and Ahmed eats 1/4 of the pizza. How much of the total pizza have they eaten? 1 point

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Answer:they have eaten 3/4 of the total pizza

Step-by-step explanation:

Let the whole pizza =1whole

Amount eaten by Toby =1/2

Amount eaten by Ahmed =1/4

Total Amount eaten by both of them =1/2 +1/4 = 2+1/ 4=3/4

Therefore, they have eaten 3/4 of the total pizza

I need help on this ASAP

Answers

Answer:

That other person was such a troll but it by 43! Could you please mark me branllest? Only if you want to :)

Step-by-step explanation:

How would you solve y=3/4x+9

Answers

Answer: i took a screen shot of the answer hope this helped

plz make brainly

Step-by-step explanation:

A triangle has sides of lengths 12, 14, and 19. Is it a right triangle? Explain.
yes; 122 + 142 192
O no; 122 + 142
192
O no: 122 + 142 + 192
O yes: 122 + 142 =
+ 142 = 192

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Answer:

It is C

Step-by-step explanation:

this is easy math for me

In trapezoid ABCD, the measure of

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Answer:

Step-by-step explanation:

According to this diagram, what is tan 62°?

A 17/15
B 8/17
C 15/17
D 8/15
E 17/8
F 15/8

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I believe it would 15/8.

Tangent is Opposite/Adjacent so 15/8
Hope this helps! :)

Solve the Simultaneous Equations: a - b = 3

Answers

Answer:

it could be 4-1=3 but i would do 10-7=3

Step-by-step explanation:

HELP PLS!!!

Consider the function f(x). Select all of the following that include a horizontal compression of f(x).
A) 2f(x)
B) f(3x)
C) -f(x)+1
D) f(0.4x) - 1
E) f(6x) +9
F) -f(0.12x)

Answers

Answer: B, E

Step-by-step explanation:

A piece of string is 325 centimeters long. You need the string to be 1 and 1 and 4 meters long. How many centimeters should you cut off?

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Here's link[tex]^{}[/tex] to the answer:

bit.[tex]^{}[/tex]ly/3gVQKw3

Find the median and mean of the data set below:
9,10,38,0,26,35,8

Answers

Answer:

Median = 10

Mean = 18

Step-by-step explanation:

1) Median equals the middle number of a set.

To find median, place the numbers from least to greatest. So that’ll turn to be:

0, 8, 9, 10, 26, 35, 38

The middle number is 10.

2) Mean is the average of all the numbers.

To find mean, add all the numbers together. So 0+8+9+10+26+35+38 = 126

Then, divide the sum by the amount of numbers you added. We added a total of 7 numbers to get 126. 126/7 = 18. The average is 18.

Answer:

The median is 10 and the mean is 18 . Hope it help

Step-by-step explanation:

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest

PLZ HELP What is the mode interval for the histogram? Science Test Scores Frequency No Бел о об - 1 50-59 60-69 70-79 80-89 90-100 Scores (out of 100) 0 80 - 89 O 50 - 59 O 10 90 - 100

Answers

Answer: You are correct. The mode is between 90 and 100

This is because the tallest bar corresponds to this interval. The mode is the most frequent value.

Step-by-step explanation:

i am not sure but i hope this can help you

You are at a bookstore and you are allowed to buy 9 books. You have already selected 3 books. Find the possible amount of books you can still select.

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Answer:

Step-by-step explanation:

9 - 3 = 6

Why is 3 x 1/10 less than 3 x 10?

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Answer:

The value of 1 tenth is less than the value of 1 ten.

Step-by-step explanation:

Answer:

Because 3 x 1/10 = 3/10

whereas 3 x 10 = 30

and 3/10 < 30

Also b/c 1/10 < 10 and they are multiplied by the same value (3)

Step-by-step explanation:

A man bought some story books for 5 Ghana Cedis each from a bookshop
15 of the books got missing. He then sold the rest at 8 Ghana cedis each and made a profit of 90 Ghana cedis. How many books did he buy?

Answers

Answer:

Step-by-step explanation:

Let the no of books bought be x

The cost price of 1 book is 5x

No of the missing book is 15

The remaining book is x-15

The selling price of 1 book is 87

Selling price of (x-15) book is 87

Hence the number of books can be calculated as follows

8(x-15)-5x= 90

8x-120-5x= 90

8x-5x= 90+120

3x= 210

x= 210/3

= 70

Hence the number of books bought is 70

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