Mathematics High School

Help please 43 points

Help Please 43 Points

Answers

Answer 1
The mean you would all up all the total and divided it by the amount of numbers so it would be.

$0+$10+ $20+$30+40+$50+$60+$70+$80 divide by 9 =

360/9=40
Answer 2

Answer:

Get the data from the table:

40, 45, 50, 55, 75, 80, 85

Median is the middle number:

55

Mean is the average:

(40+ 45+ 50+ 55+ 75+ 80+ 85)/7 =  61.42

Rachel and Sarah spent:

80 + 85 = 165

Related Questions

I need help, can somebody plz help

Answers

Answer:

c

Step-by-step explanation:

what is an equation of the line that passes through the points (1,2) and (2,-1) 

Answers

Answer:

[tex]y = - 3x + 5[/tex]

You should also try solving it yourself to make sure I did not make any mistake.

Step-by-step explanation:

Equation

[tex]y = mx + b[/tex]

First we need to know the slope

[tex]slope = \frac{y1 - y2}{x1 - x2} [/tex]

[tex]slope = \frac{2 - ( - 1)}{1 - 2} = \frac{3}{ - 1} = - 3[/tex]

So far the equation will look like this

[tex]y = - 3x + b[/tex]

To get the b you insert a point into the equation like this. I picked point (1,2)

[tex]2 = - 3 \times 1 + b[/tex]

[tex]b = 5[/tex]

We could also check it with the other point and see if we get the same answer.

[tex] - 1 = - 3 \times 2 + b[/tex]

[tex]b = 5[/tex]

So the equation is

[tex]y = - 3x + 5[/tex]

For f(x) = 5x and g(x)= x + 9, find
(fog)(x); b. (gof)(x); (fog)(3)
a.
C.
a.
(fog)(x)=
(Simplify your answer.)

Answers

Answer:

(fog)(x)  = 5x+45(gof)(x)   = 5x+9(fog)(3) = f(g(3)) = f(12) = 60    

Step-by-step explanation:

Given

f(x) = 5xg(x) = x + 9

Finding (fog)(x)

(fog)(x)  = f(g(x))

(fog)(x)  = f(x+9)

(fog)(x)  = 5(x+9)             ∵ substitute x as x+9 in the f(x)

(fog)(x)  = 5x+45

Finding (gof)(x)

(gof)(x) = g(f(x))

(gof)(x)  = g(5x)

(gof)(x)   = 5x+9                 ∵ substitute x as 5x in the g(x)

Finding (fog)(3)

(fog)(3) = f(g(3))

substitute x = 3 in the g(x)=x+9

g(x) = x+9

g(3) = 3+9

g(3) = 12

so

(fog)(3) = f(g(3)) = f(12)

now substitute x = 12 in  f(x) = 5x

f(x) = 5x

f(12) = 5(12)

f(12) = 60

Thus,

(fog)(3) = f(g(3)) = f(12) = 60

The menu for a restaurant lists 3 types of soup, 5 types of sandwiches,
and 4 types of chips. If a meal is one soup, one sandwich, & one bag of
chips, how many meals can you make? * pls help

1. 12
2.15
3.20
4.60

Answers

The answer is 20 good job

*please be serious*
*solve for y*

Answers

Answer:

i cant answer it without x or at least some more stuff in the question, the only thing i can rlly say is 9x+2 maybe

Step-by-step explanation:

I need help any help is appreciated please

Answers

Answer:

third option both cost the same after 2 months

How many 1 fourths are in 3 fourths?

Answers

Answer:

12

Step-by-step explanation:

This question means 3/(1/4). The rule for division of fractions is invert the denominator and multiply. 3/(1/4) = 3 * 4 = 12. Another way to think of it is to imagine you have 3 pies each divided into quarters.

which describes the correlation shown in the scatter plot ?

A.there is a positive correlation in the data set
B.there is a negative correlation in the data set
C.there is no correlation in the data set
D.more points are needed to determine the correlation ​

Answers

I’m pretty the answer is b but I might be wrong

Answer:

It is B because it is negative correlation.

Step-by-step explanation:

Everyone keeps saying it's A, but how would it be A if the trend is going down? Make it make sense.

It is B.



100 POINTS PLS HELP
2 5.2.3 Quiz: Canceling Units
Question 2 of 15
In converting 105 seconds to minutes, what unit (omit the number) would you
place in the denominator of your ratio? Use the plural form in your answer.
Remember that there are 60 seconds in 1 minute.
Answer here

Answers

Do you still need help in this?

Write the slope-intercept form of the equation of the line described.

Answers

it’s a! hoped this helped you!!!!
Slope: -1/2
Y = -1/2x + b
-3 = -1/2(-2) + b
-3 = 1 + b, b = -4
Y = -1/2x - 4
I believe A is the correct equation

HELP PLS IDK WHAT TO DO

Answers

Answer: hmmm i think u should multiply

Step-by-step explanation:

Answer:

gfbngfjhbfgnbfhbnng

Step-by-step explanation:

Which of the following lines is perpendicular to a line with a slope of 5?
y= 1/5x +5
y= 5x +5
y= -1/5x +5
y= -5x +5

Answers

Answer:

Y=-5x+5

Step-by-step explanation:

you just change it negative and if it was a fraction you'd change the sign the opposite still but.... flip the fraction :))

Writing equation of the line that passes through the given points (16, -4) ; m= -3/4

Answers

Answer:

y = -3/4 - 12

Step-by-step explanation:

I think it’s m= -1/16

least common multiple of 12 and 3

Answers

Answer:

Answer is 12

12x1=12

3x4=12

Step-by-step explanation:

Its the least number.

Answer:

It is exactly 12

Step-by-step explanation:

I hope this helped you

Can i get branliest and heart please

Thanks!

PLEASE HELP WILL MARK BRAINLIEST
WHICH OF THESE IS EQUIVALENT TO 4^-3 ?
(-4)(-4)(-4)
3^4
(-1/4)(-1/4)(-1/4)
1/4^3

Answers

First one pretty obvious

how to write k/3 + 16 in words

Answers

Answer:

k divided by three plus sixteen

pls help me fast like asap

Answers

D is your answer because you gave 20 and they are subtracting the cost of 3x lbs of apples

Answer:

Im pretty sure its D

Step-by-step explanation:

Danielle is making a quilt with triangles and squares. There are 4 colored triangles inside each square. The base and height of each triangle is x + 4 inches as shown. Which polynomial represents the area of the colored triangles in square inches?

Answers

Answer:

[tex](2x^2+16x+32)\ \text{sq. inches}[/tex]

Step-by-step explanation:

b = h = Base = Height of triangle = [tex](x+4)\ \text{inches}[/tex]

Area of one triangle

[tex]A=\dfrac{1}{2}bh=\dfrac{1}{2}(x+4)(x+4)[/tex]

There are 4 colored triangles so total area of the triangles is

[tex]4A=4\times \dfrac{1}{2}(x+4)(x+4)\\\Rightarrow 4A=2(x+4)^2\\\Rightarrow 4A=2(x^2+8x+16)\\\Rightarrow 4A=2x^2+16x+32[/tex]

The area of the colored triangles is [tex](2x^2+16x+32)\ \text{sq. inches}[/tex]

Percent equations I need help plzzz here is the question blank % of 6,000 = 4,800

Answers

80 percent of 6,000 is 4,800

Answer:

20%

Step-by-step explanation:

20% of 6000 = 4800

If I helped you, can you mark me brainliest please?

Write the equation in Standard Form.

y=3/2x - 6

Answers

Answer:

3x - 2y = 12

Step-by-step explanation:

3x-2y=12 is the standard form of equation y=3/2x - 6

What is slope intercept form of line?

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The equation is y=3/2x - 6

y equal to three by two times of x minus six

y=3/2x - 6

LCM of 1 and 2 is 2

y=(3x-12)/2

Now apply cross multiplication

2y=3x-12

Two times of y equal to three times of x minus twelve

Now take 2y to RHS side

3x-2y-12=0

3x-2y=12

Hence 3x-2y=12 is the standard Form of equation y=3/2x - 6.

To learn more on slope intercept form click:

https://brainly.com/question/9682526

#SPJ2

MARKING PEOPLE AS BRAINLIST ALL DAY ONCE U ANSWER AND IS CORRECT :)

Answers

Answer: Hi there! your answer is A

Step-by-step explanation:

hope this helped smile and have a great day! stay positive!!! brainliest?

The area of the triangle is

square inches.
fill in the blanks

Answers

Answer:

8

Step-by-step explanation:

You could make any amount but 8 dos work if the triangle is a 2 by 8

The answer is 8 I am pretty sure

What is the solution for the equation 4x – 10 = 2x?

Answers

Answer:

5x

Step-by-step explanation:

subtract 4x fromboth sides

4x-10=2x

-4x     -4x

divide both sides by -2

-10=-2x

-10/-2=-2x/-2

5=x

5x is the correct answer


Tell me if I’m correct or incorrect






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A
A

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We
We
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Das

S
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2) How old am I if 300 reduced by 4 times my age is 44?

Answers

Answer:

64

Step-by-step explanation:

300 -4x = 44

(300 - 44)/4= 64

check

64 x 4 =256

300 - 256 = 44

Paula has a new beaded necklace. 70% of the 100 beads on Paula's necklace are blue. How many blue beads are there on Paula's necklace?​

Answers

Answer:

70

Step-by-step explanation:

70% of 100 is 70 meaning there would be 70 blue beads

How do you not know it is 70?

Hurry please (ignore this part hdhdjsfjenejfixhebrfisj)

Answers

Answer:

(-3/8) (-5/7) (-1/4) is the answer

Step-by-step explanation:

please mark me as brainliest please

a school is purchasing graphing calculators for use in math classrooms. the graph shows a relationship between the number of graphing calculators purchased and the total cost​

Answers

Answer:

there is no picture

Step-by-step explanation:

In 2/3 divided by 4/5 the____ is 2/3 .

Answers

Answer:

Numerator

Step-by-step explanation:

2/3 / 4/5. 2/3 is the numerator of the compound fraction.

Please, Solve for Y

3x - y = -13

(Correct answer gets brainliest)

Answers

Answer:

y = 13 +3x

i answered in the comments, bc it wasnt lettin me actually answer

Step-by-step explanation:

3x - y = - 13

-3x -3x

-y = -13 - 3x

divide everything by -1

y = 13 + 3x

hope this helpsss!!!

please help i dont want to fail

Answers

Answer: -2.2

Step-by-step explanation:

Answer:

-3/5 which is the third line between 0 and -1 if you're going back from 0.

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