Mathematics High School

If f(x) = -2[x] + 8, what is f(-1.8)?
o 4
6
10
o 12

Answers

Answer 1

Answer:

12

Step-by-step explanation:

Related Questions

The indoor climbing gym is a popular field trip destination. This year the senior class at High
School A and the senior class at High School B both planned trips there. The senior class at High School A rented and filled 14 vans and 5 buses with 329 students. High School B rented and filled 11 vans and 5 buses with 281 students. Each van and each bus carried the same number of students. Find the number of students in each van and in each bus.

Answers

Answer:

Step-by-step explanation:

14 x + 5y = 329

11x + 5y = 281(vans is x and busses are y)

cancel out 'y' by making the '5y' in 11x + 5y = 281 negative

-1 (11x + 5y = 281) =

-11x -5y = -281

insert second equation

-11x -5y = -281

14x + 5y = 320

3x = 48

x = 16

substitute vans in one equation

11(16) + 5y = 281

5y = 105

y = 21

I need help with this question ASAP

Answers

It would be the first, third, fifth, and sixth one
.
Hope this helps :)

Nine times the input minus seven is equal to the output. If the input is -1, what is the output?

2
-2
-72
-16

Answers

Answer:

-16

Step-by-step explanation:

Answer:

-16

Step-by-step explanation:

-

Brainlest-Pls help me pls thank you sm In advance

Answers

Answer: 90 divided by 45 equals 2     45+45=90

Step-by-step explanation:

A 12- pack of 8- ounce juice boxes costs $5.90. How much would an 18- pack of the same 8- ounce juice boxes cost?

Answers

Answer:

$8.85

Step-by-step explanation:

This a question of direct variation, so we can make out a relationship between the two factors. 12 is 2/3 of 18, so the cost of 12 would also be 2/3 of the cost of 18. We can now make an equation to solve.

[tex]\frac{2}{3} x=5.9\\2x=17.7\\x=8.85[/tex]

Help me plzplzplzplz1

Answers

Answer:

The answer is 400 when you round it off to the nearest hundred.

carrue babysits her neighbor's children. Her earnings are giving by the equation y= 13.4x , where x represents the number of hours she worked and y represents the amount of money she earned. Heather earns $14.00 per hour mowing her neighbor's lawns. Who makes more money per hour? Find the difference of the two rates.​

Answers

Answer:

Heather makes 0.60 more money per hour than Carrue because Heather makes $14.00 per hour while Carrue makes $13.40 per hour.

Step-by-step explanation:

14.00-13.40=0.60

Need help fast!!!!!!

Answers

Answer:

45 i think

Step-by-step explanation:

Nathan spins 2 different spinners at the same time. There are a total of 10 possible outcomes. Which pair of spinners did Nathan spin? A B 1 2. AB E с 5 3 E с 1 2 D 4 D А B B 1 2 care 1 2 E с D с D 3​

Answers

Answer:

Since the spinners have been spun simultaneously, every side on each of the spinner carries equal probability of landing. In order for there to be only 10 possible outcomes, no more no less, the spinners cannot be identical. One of the spinner in two sided while the other spinner must then be a five sided spinner. Choosing this particular pair of spinners gives Nathan 10 possibilities of combinations.

Hope that answers the question, have a great day!

Step-by-step explanation:

I'M GIVING BRAINLIEST
I just need help with the equation, you don't have to solve it

Answers

Answer:

OOF

Step-by-step explanation:

Answer: i don't actually know, sorry but i need to get my points so i'm typing this.

Step-by-step explanation: none

How would you graph the inequality 5x+8y>=250? Pls help me...

Answers

Answer: hope this helps I guess?

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAINLIEST IF 2 PEOPLE ANSWER! Find the area of a square with side length x when x is equal to the given value. Are the area of a square and the length of its side directly proportional? Justify Your Answer.
x = 15 inches.
The area of the square is __ square inches.

Answers

Answer:

The area of the square is 15²

the area of a square and the length of its side are directly proportional because The area of the square is x²=> when its edge decreases, the area of ​​the figure decreases

Step-by-step explanation:

The slope of the graph shown below is

Answers

Answer:

1/ 2.5

Step-by-step explanation:

one way to do this is rise over run, so from one red dot to the other it went up one and over 2.5. the other way to do this is by using the (y2-y1)/(x2-x1) this will give you the same answer :)

It’s -2/3, you rise or go down 2 spaces then run 3 paces to the right the line is going negative.

what is
x/6+21=28
I need to know quick please help me

Answers

Answer:

x=42

Step-by-step explanation:

x/6+21=28

28-21=x/6

7=x/6

x=7*6

x=42

Answer:

42

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

PLEASE HELP LINEAR EQUATIONS!!
3(2x-5)=-15

Answers

Answer:

x=0

Step-by-step explanation:

Divide both sides by the numeric factor on the left side, then solve.

3(2x−5)=−15

Step 1: Simplify both sides of the equation.

3(2x−5)=−15

(3)(2x)+(3)(−5)=−15(Distribute)

6x+−15=−15

6x−15=−15

Step 2: Add 15 to both sides.

6x−15+15=−15+15

6x=0

Step 3: Divide both sides by 6.

6x/6 = 0/6

x=0

Hope this helps :)

Answer:

2x-5= -3x times(x) 3 is -9

Step-by-step explanation:

PEMDAS

Find the slope between (9,-2) and (-1,5)

Answers

Answer:

7/-10

Step-by-step explanation:

subtract

5-(-2) = 7

-1-9 = -10

Answer:

The slope is -0.7 or -7/10

Step-by-step explanation:

For 10 x values decreased, the y values go up 7 values. So the slope is -7/10 or -0.7

I hope that this helps! :)

Please answer this question
B=3V/h
Solve for V

Answers

Answer:

V = [tex]\frac{Bh}{3}[/tex]

Step-by-step explanation:

Given

B = [tex]\frac{3V}{h}[/tex] ( multiply both sides by h )

Bh = 3V ( isolate V by dividing both sides by 3 )

[tex]\frac{Bh}{3}[/tex] = V

So how are 1/2 and 4/8 Similar?

Answers

Answer:They both equal 1 half

Step-by-step explanation:To put it a lil more simply, 1/2 = 0.5 and 4/8 also = 0.5

Answer:

1/2 is 4/8. 1/2 is just 4/8 but simplified. So 12/36 simplified is 1/3, 24/48 is 1/2

best answer gets branliest

Answers

Answer:

A.26.5

Step-by-step explanation:

Pretty easy please answer. 50 points and brainliest. If you spam you dont get anything.

Answers

Step-by-step explanation:

The independent variable is m the number of minutes a hose runs.

The dependent variable is g the number of gallons the hose sprays.

The number of gallons a horse sprays depends on the minutes the hose runs. Lets say the hose sprays a gallon in a minute. And let us say the hose runs for 5 minutes. That would mean the hose would have sprayed 5 gallons of water.

The minutes a hose runs does not depend on the gallons the hose sprays.

0x + 8 = 5x - 3 What is X?

Answers

Answer:

x= 11/5 OR 2.2

Step-by-step explanation:

Answer: x= 2.2

Step-by-step explanation:

0x+8=5x-3

    +3     +3

0x+11=5x

5    5   5

x=2.2

THIS IS FOR 60PTS SO ANSWER Explain how you got your answer 4x-20+2x-12=10

Answers

Answer:

x = 0.333...(repeating or .34 if u round)

Step-by-step explanation:

add 4x and 2x= 6x

20- 12 = 8

6x + 8 = 10

  -8      -8

6x = 2

6      6

             

x = 0.333...(repeating or .34 if u round)

Noah says that to find 20% of a number he divides the number by 5. For example, 20% of 60 is 12, because 60÷5=12. Does Noah’s method always work? Explain why or why not.

Answers

Answer:

yes

Step-by-step explanation:

because if you divide what you said its will have a sum

Ashley started the year with 45 comic books. Each month, she adds 5 more comic books to her collection. Which table correctly represents y, the number of comic books in her collection, after x months? A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 1, 2, 3. Column 2 is labeled y with entries 5, 50, 95, 140. A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 1, 2, 3. Column 2 is labeled y with entries 45, 50, 55, 60. A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 5, 10, 15. Column 2 is labeled y with entries 45, 46, 47, 48. A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 5, 10, 15. Column 2 is labeled y with entries 45, 90, 135, 180.

Answers

Answer:

C

Step-by-step explanation:

Hope this helps

please mark as brainlist

Answer:

c

Step-by-step explanation:

use the slope-intercept form to graph y=3/5x-3

Answers

Answer:

Step-by-step explanation:

can someone answer this

Answers

Answer: It's obviously D.

Step-by-step explanation:

I think it’s C because there’s no value so it would be a variable

TIME REMAINING 24:59 Ten members of Balin's soccer team ran warm ups for practice. Each member ran the same distance. Their combined distance was StartFraction 5 Over 6 EndFraction of a mile. To find the distance that each member ran, Balin wrote the expression below. StartFraction 5 Over 6 EndFraction divided by 10 Which expression is equivalent to Balin's expression?

Answers

Answer:

The equivalent expression = 1/12 of a mile

Step-by-step explanation:

Total distance of 10 members of the Balin's soccer club =5/6 of a mile

To find the distance that each member ran, Balin wrote the expression:

5/6 ÷ 10

Which expression is equivalent to Balin's expression?

5/6 ÷ 10

= 5/6 × 1/10

= 5/60

= 1/12 of a mile

Each member of the Balin's soccer club ran 1/12 of a mile

The equivalent expression to 5/6 of a mile divided by 10 members of the Balin's soccer club is 1/12 of a mile

Answer:

brah

Step-by-step explanation:

Please help for brainliest.

Answers

Answer:

C

Step-by-step explanation:

The answer is c 57.29 so the problem would be (y=0.05x750+19.79) 0.05x750=37.5 then 37.5+19.79=57.29 so y= 57.29

How many vertices does this shape have?



Answers

Answer:

6 i think

Step-by-step explanation:

vertices are the points and there are 6 points

Which inequalities have the solution set graphed on the
number line? Check all that apply.
O x2 -1.5
Oxs -1.5
D -1.5 SX
D -1.5 2 x
Oxs -2.5
O x 25
25 2x

Answers

Answer:

B,C

Step-by-step explanation:

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