Mathematics College

please answer, i don't know how to solve them. please and thank you

Answers

Answer 1

Answer:

C or 260.48

Step-by-step explanation:

Find area of both triangles:

20*16/2/2*2=160

Find area of circle;

pi*r*r/2= area of circle

d/2=r

16/2=8

pi*8*8/2 is about 100.53

160+100.53=260.53

Related Questions

If you randomly select a card from a well-shuffled standard deck of 52 cards, what is the probability that the card you select is a 3 or 5?

Answers

Answer:

Step-by-step explanation:

you should divide 52 by a number to get 3

13.333...% as a fraction

Answers

Answer:

[tex]13 \frac{333}{1000}[/tex]

Step-by-step explanation:

The amount of numbers after the decimal point tell you the amount of zeros to put after the 1 in the denominator.

Just rewrite the whole number infront of the decimal point into the fraction

Answer:

[tex]\frac{2}{15}[/tex]

Step-by-step explanation:

[tex]13.333...\%=\frac{13.333...}{100}=\frac{10+3.333...}{100}=\frac{10}{100}+\frac{3.333...}{100}[/tex]

[tex]=\frac{1}{10}+\frac{\frac{10}{3}}{100}=\frac{1}{10}+\frac{1}{30}=\frac{4}{30}=\frac{2}{15}[/tex]

Help bell math math math

Answers

Hint :

y = ax + b

The coefficient of x is the slope of the line in this form of the linear equations.

=====================================

The perpendicular line have negative and inverse slope which means the product of their slope must equals to - 1 .

Thus if we suppose that the line we want to find it's equation has a slope of m ; we have :

4 × m = - 1

Divide both sides by 4

4m ÷ 4 = - 1 ÷ 4

m = - 1/4

Thus we know the coefficient of x now :

y = - 1/4 x + b

======================================To find the value of b we need one of the point that the line passed through it which is the point ( 4 , - 11 ) .

All we have to is put the coordinates in the equation and find the value of b.

Let's gooo....

y = - 1/4 x + b

put the coordinates in the equation

- 11 = (- 1/4)×4 + b

- 11 = - 1 + b

Add both sides 1

- 11 + 1 = -1 + 1 + b

b = - 10

======================================

Thus :

[tex]y = - \frac{1}{4} x + ( - 10) \\ [/tex]

[tex]y = - \frac{1}{4} x - 10 \\ [/tex]

Answer:

y = ax + b

Step-by-step explanation:

Do this problem 3 2/3x-4/5(x-3 3/4)

Answers

3 2/3x-4/5(x-3 3/4) = 148r/15 + 33/5

Answer if X is in denominator with 3:
-4x^2+15x+10/ 5x

Answer if the X is next to the 2/3 (multiplying 2/3):
(43/15) x +3

y+2=-3(x-1)in slope intercept form

Answers

y= -3x+1

First you distribute the -3. So -3 times x which is -3x and -3 times -1 which is positive 3. Therefore you get y+2=-3x+3.

Then you subtract the 2 from both sides. 2-2=0, so you have just y. Now subtract 2 from the 3 on the right and you get 1. Therefore you get y=-3x+1.

Y=-3+ 1 you have to use distributive property on the right side

Brainliest if correct

Answers

Answer:

y = 3

Step-by-step explanation:

Since x = 4

4 + y = 7

Subtract 4 from both sides of the equation

y + 4-4 = 7 -4

Simplify

y =3

[RevyBreeze]

Which of the following numbers is the smallest

Answers

The smallest number from the folowing option is A . 0.0082.

What is the number pattern?

A number pattern is a pattern in a series of numbers that represents the common relationship between the numbers.

The given numbers are;

0.0082

1/3

0.048

0.36

1/9

thus, The smallest number from the folowing option is A . 0.0082.

Learn more about a number pattern:

brainly.com/question/14471389

#SPJ2

i’ll give brainliest!

Answers

Answer:

-6

Step-by-step explanation:

just keep the same slope and just pretend to move the line up 8 which would decrease the x value by 14 equaling -6

Rewrite the quadratic function below in standard form. y = 3(x+9)(x+1)

Answers

Answer:

y = 3x² + 30x + 27

Step-by-step explanation:

Formula: Ax + By = C

y = 3 (x + 9) (x + 1)

y = 3x + 27x + 3x + 7

y = 3x² + 30x + 27

The value of q is:

A. 42.
B. 39.
C. 40.

Answers

Answer:

Step-by-step explanation:

Its pretty easy i did that on a test and got a 100

The supplement of a 60∘ angle is an angle that measures how many degrees?

Answers

Answer:

120 Degrees

Step-by-step explanation:

Supplementary means angles that add up to 180 Degrees, so 180 - 60

120 degrees
Hope it helps

Find the circumference of the circle below:

15.7 cm

31.4 cm

100 cm

314 cm
help me

Answers

Answer:

31.4 cm

Step-by-step explanation:

[tex]C=2\pi r[/tex]

[tex]=2*\pi *5[/tex]

[tex]\neq 31.41593[/tex]

≈ 31.4

3. Over the next two days, Job.net Employment Agency is interviewing clients who wish to find jobs. On the first day, the agency plans to interview clients in groups of 2. On the second day, the agency will interview clients in groups of 4. If the employment agency will interview the same number of clients on each day, what is the smallest number of clients that could be interviewed each day?

Answers

Here is my answer. Good luck.

Area of a circle D=10
a.62.80
b.78.50
c.314
d.15.70
e.31.40

Answers

B
Area of circle= 5*5*3.14
Area of circle= 78.54

What is the length of ONE side in a square if the perimeter is 4x + 25

Answers

Answer:

Hi, you already asked this question, the answer is 6...

Step-by-step explanation:

The answer is 6 I believe

Which of the following is true about the line that passes through the points (-5, 8) and (1,8

Answers

Answer: there is a horizontal line on the bottom side to each point.

Step-by-step explanation: -5 x 8y, 1x 8y so from each position they are on the bottom. negative on the right, positive on the left (x axis)

Homework Pls Help Me

Answers

Answer:

Just if you need help im a straight A student

Step-by-step explanation:

A new movie theater opens at the local mall. During the first month, the owner collected information
on how many customers they had throughout each day. The owner concluded that the number of
customers the theater has at any given moment can be represented by C(x) = -x2 + 11x where x
represents the number of hours that the movie theater has been open on a given day. The theater
opens at 12:00 PM.
At what time does the theater have no customers?
a.
11:00 PM
b. 5:30 PM
c. 2:00 PM
d. 8:30 PM

Answers

The time at which the theatre does not have any customers is; Choice A: 11:00 PM

Functions and variable

From the task content;

The function which represents the number of customers the theater has at each point in time is;

C(x) = -x² + 11x

Hence, when C(x) = 0, the theater has no customers.

0 = -x² +11x

Divide through by x;

0 = -x +11

x = 11.

Read more on functions and variables;

https://brainly.com/question/24253401

a song has 540 beats. if the song is 3 minutes long, how many beats per minute does the song have? ( PLEASE AWNSER UNTIL 10 MINUTES AND I WILL DELETE)

Answers

Answer:

180

Step-by-step explanation:

Divide 540 by 3 to get 180 which is your answer!

Have a good day!

Please mark brainliest!

Solution:

Note that:

540 beats = 3 min.

Simplify the equation to know how much beats in 1 minute.

540 beats = 3 min.=> 1 minute = 540/3 beats=> 1 minute = 180 beats

The beats per minute in this song is 180 beats per minute.

help needed brainliest will be given for attempt

What is an example of how public conduct, even outside of the office itself, can affect one’s job?

Answers

Answer:

What is an example of how public conduct, even outside of the office itself, can affect one’s job?

Step-by-step explanation:

Are the following fractions equivalent? Explain.

15/60 = 3/4

Answers

Yes it is because, 3/4 x 3 = 9/12 which 9/12 is simplified to 3/4 so which makes it equivalent, hope it helps and sorry if it doesn’t!

Answer:

Step-by-step explanation:

is 15/60 = 3/4?

Find the lowest term of 15/60.

The LCD of 15 and 60 is 15 so......

15 ÷ 15

— —

60 ÷ 15

= 1/4 (the lowest term of 15/60)

Since 1/4 is not equal to 3/4

Then 15/60 is not equivalent to 3/4.

Hope it helps.

A bag contains sixty marbles. Adam takes 18 of them. The rest are shared equally between Oscar, Priya and Daisy. How many marbles does Daisy get?

Answers

Answer:

Step-by-step explanation:

Take away the marbles that adam has

60-18 = 42

There are 42 marbles to divide between Oscar, Priya and Daisy.

Divide 42 by 3

42/3 = 14

Daisy gets 14 marbles

Daisy gets 14 marbles

How to determine the amount Daisy got?

The number of marbles in the bag is:

Marbles = 60

When Adam took 18 marbles, the remaining number of marble is:

Marbles = 60 - 18

Marbles = 42

When the remaining marbles are shared by Oscar, Priya and Daisy.

The amount by Daisy is:

Daisy = 42/3

Daisy = 14

Hence, Daisy gets 14 marbles

Answers

Answer:

your is.... 2212

Step-by-step explanation:

7 days in a week, right?

7 * 4 = 28

75 x 28 + the additional 112

The average size of a human cell is one-ten-thousandths (0.0001) of a meter. Write it in scientific notation. ( Follow this format without spaces: _.___x10^__ )

Answers

Answer:

The average size of a human cell is one-ten-thousandths (0.0001) of a meter. Write it in scientific notation. ( Follow this format without spaces: 1769 ma 20

. A jeweler has 100 necklaces and bracelets to sell at a flea market. Bracelets are selling for $5.75 each, and necklaces are $8.50 each. If the jeweler makes $685.00 after selling all of the items, how many of each type of jewelry did the jeweler sell?

Answers

Answer:

there are total 60 bracelets and 40 necklaces.

Explanation:

let necklaces be x

let bracelets be y

make two equations from the given values:

x + y → 1005.75y + 8.50x → $685

solving steps:

x + y → 100

x → 100 - y

using substitution method:

5.75y + 8.5x → 685

5.75y + 8.5(100 - y) → 685

5.75y - 8.5y + 850 → 685

-2.75y → 685 - 850

-2.75y → -165

y → 60

Find x:

x + y → 100

x → 100 - 60

x → 40

Answer:

60 bracelets

40 necklaces

Step-by-step explanation:

Let n = number of necklaces sold

Let b = number of bracelets sold

Given:

Total number of items sold = 100

⇒ n + b = 100

Given:

Sale price of bracelet = $5.75Sale price of necklace = $8.50Total sales = $685

⇒ 5.75b + 8.5n = 685

Rewrite n + b = 100 to make b the subject, substitute into 5.75b + 8.5n = 685 and solve for n:

⇒ b = 100 - n

⇒ 5.75(100 - n) + 8.5n = 685

⇒ 575 - 5.75n + 8.5n = 685

⇒ 575 + 2.75n = 685

⇒ 2.75n = 110

⇒ n = 40

Substitute found value for n into n + b = 100 and solve for b:

⇒ 40 + b = 100

⇒ b = 60

Equations of the form cosθ=k where -1 ≤ k ≤ 1 has/have ______________ solution(s).

A. two
B. infinitely many
C. one
D. none

Answers

I think it is A which is two

14 students have volunteered for a committee. Eight of them are seniors and six of them are juniors. (a) How many ways are there to select a committee of 5 students

Answers

Answer: 2002

======================================================

Explanation:

We have five slots to fill, which I'll label A through E.

There are,

14 choices for slot A13 choices for slot B12 choices for slot C11 choices for slot D10 choices for slot E

Each time we fill up a slot, we count down by 1.

This gives 14*13*12*11*10 = 240,240 different permutations. If order mattered, then this would be the answer.

However, order doesn't matter on a committee without rankings. Each member has the same rank as any other.

Within any group of 5 people, there are 5! = 5*4*3*2*1 = 120 ways to arrange them. This means we divide that 240,240 figure by 120 to find the number of combinations.

There are (240,240)/(120) = 2002 different combinations.

---------------------------------------

Here's how we could have done the problem using the nCr combination formula.

Plug in n = 14 and r = 5.

n C r = (n!)/(r!(n-r)!)

14 C 5 = (14!)/(5!*(14-5)!)

14 C 5 = (14!)/(5!*9!)

14 C 5 = (14*13*12*11*10*9!)/(5!*9!)

14 C 5 = (14*13*12*11*10)/(5!)

14 C 5 = (14*13*12*11*10)/(5*4*3*2*1)

14 C 5 = (240240)/(120)

14 C 5 = 2002

Simplify the expression.
2.4 - 4.3n - 3n + 6

Answers

Answer:

-7.3n+8.4

Step-by-step explanation:

combine like terms

Hope this helps! Have a great day!!

Answer:

8.4 - 7.3n

Step-by-step explanation:

1. Rearrange

2.4 - 4.3n - 3n + 6 = 2.4 + 6 - 4.3n - 3n

2. Combine like terms

2.4 + 6 - 4.3n - 3n = 8.4 - 7.3n

The answer is 8.4 - 7.3n

Hope this helps :)

Have a great day!

(2x-3)(3x+4) expand and simplify?

Answers

Answer:

6x2-x-12

Step-by-step explanation:

The given expression:

(

−

)

(

)

Simplify by using the FOIL method:

(

−

)

(

)

⋅

−

⋅

−

⋅

−

Therefore, the simplest form of the given expression is

−

Despite booming new car sales with their cha-ching
sounds, the average age of vehicles on roads is not
going down. The bar graph shows the average price of
new cars in Country A and the average age of cars o
roads for two selected years. In 2014, the average price
of a new car was $37,600. For the period shown, new-
car prices increased by approximately $1250 per year.
If this trend continues, how many years after 2014 will
the price of a new car average $47,600? In which year
will this occur?
How many Years after 2014 will the average price of new cars average $47,00?
I provided a Picture for the graph! Thanks a ton!

Answers

Answer to the 1st question: 8 years

Answer to the 2nd question: The year 2022

=======================================================

Further explanation:

x = number of years after 2008

y = average price of a new car

The prices are going up by $1250 per year on average. This is the slope because the slope is the rate of change. So m = 1250.

The y intercept is b = 30100 as this is the price in 2008.

This leads us to go from y = mx+b to y = 1250x+30100

Plug in x = 0 and you should get y = 30100.

Also, plugging x = 6 into the equation leads to y = 37600 to help confirm things.

-----------------

Next, we plug in y = 47600 and solve for x.

y = 1250x+30100

47600 = 1250x+30100

47600-30100 = 1250x

17500 = 1250x

1250x = 17500

x = 17500/1250

x = 14

This means 14 years after the year 2008 is when the average new car price will be $47,600.

2008+14 = 2022

2022-2014 = 8

Therefore, 8 years after 2014 (aka the the year 2022) is when the new car average price will be $47,600.

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