Mathematics High School

c.)
18-2x² when x = -3

Answers

Answer 1

Answer:

0

Step-by-step explanation:

First, we plug in the -3 into the equation:

18 - 2(-3)^2

0

Related Questions

2.3.4 - What two numbers multiply to -40 and add up to -3?
Your answer
Is it 120

Answers

Answer:

-8 and 5

Step-by-step explanation:

(64-42
wich model showes

Answers

Answer:

3√64 is 4

The answer is in the bottom left under the biggest one

Step-by-step explanation:

To find the volume you need to multiply the height, width, and length which represents the 3 to square it to 4 means 4 unit length on each side to have a total of 64 volume.

Hope this helps!

6) In a true experimental design, the manipulated variable, or grouping variable is
and assignment to groups is
(choose the option in which both are correct)
called the
a) dependent variable; random
b) dependent variable; based on preexisting differences
c) independent variable; based on preexisting difference
d) independent variable; random

Answers

In a true experimental design, the manipulated variable, or grouping variable is  independent variable; based on pre-existing difference.

What is the independent variable?

The independent variable is the variable in an experiment that is manipulated by the researcher. It is assumed that the independent variable has a direct effect on the dependent variable. The dependent variable is the variable whose value is being determined  in the experiment.

For example, you want to carry out an experiment to determine the effect of the hours spent reading for a test on the grade gotten on the grade. In this research, the independent variable is the hours spent reading and the dependent variable is the grade gotten. Different data on the hours studied would be collected.

To learn more about independent variables, please check: https://brainly.com/question/26287880

#SPJ1

Roy weighs 150 pounds and plans to lose 1.5 pounds a week. Luis weighs 200 pounds and plans to lose 2.5 pounds a week. Which equation shows when Roy and Luis will weigh the same? Use x for the number of weeks

150 −1.5x=200−2.5x150 −1.5x=200−2.5x

150 +1.5x=200−2.5x150 +1.5x=200−2.5x

150 +1.5x=200+2.5x150 +1.5x=200+2.5x

Answers

Answer:

A

Step-by-step explanation:

If im wrong im sorry bc the other ones are addition and they said looseing weight i jus picked da 1 dat made sense to meh.

Which of the following expressions are undefined? CHOOSE ALL THAT APPLY

A. 6/0
B. 5/0
C. 6/5-5

Answers

Answer:

6/0, 5/0, 6/5-5

Step-by-step explanation:

You cannot divide a number by 0:

6/0 is dividing by 05/0 is dividing by 06/5-5=6/0 which is dividing by 0

how do you solve 6x+104=16x+114

Answers

Answer:

x = -1

Step-by-step explanation:

6x + 104 = 16x + 114

First subtract 104 from both sides

Now you have:

6x = 16x + 10

Subtract 16x from both sides

-10x = 10

Divide by -10 on both sides and you get your answer

x = -1

Answer:

x = - 1

Step-by-step explanation:

First you wanna subtract 104 from both sides

6x + 104 - 104 = 16x + 114 - 104

you should get 0 on the left and 10 on the right

next you subtract 16x from both sides  

6x - 16x = 16x - 16x + 10

you should get -10x on the left side and get 0 on your right

next you divide both side by -10

-10x ÷ -10 = 10 ÷ -10

the left should be 0 and the right should be -1

that's how i got the answer and I hope it helped !

(-8,7) and (x,9) given m=1/2

Answers

Answer:

x = -4

Step-by-step explanation:

put the quardinates in the slope formula and set it to 1/2 and solve by cross multiplying

9-7/x+8 = 1/2

2/x+8 = 1/2

4 = x+8

x = -4

PLZZPLZZ ANSWERALL THE QUESTIONS I CANT CELEBRATE CHRISTMAS IF I DONT FINISH PLZ HELP PLZZ LOOK AT THE PIC plzz

Answers

Answer:

17: Slope = -5

18: = 1/3

19: = -1/5

20: = Does not exist

21: = 1/4

22: =-2/3

Step-by-step explanation:

Please follow and mark me braibliest

happy Christmas

Which is a unit rate?

1 Cookie/ 1/3 bag

1 Cookie/ 9 bags

2/3 cookies

3 cookies/bag

Answers

3 cookies/bag


Explanation: A unit rate is something that has 1 on the bottom for example 5 cookies for a dollar that is a unit rate hoped I helped have a nice day and god speed to you (:

I will give you brainlist!

Answers

the answer is 4.8

to solve start by dividing 4 by 2.5 to find the scale factor. then multiply 3 by the scale factor.

4/2.5= 1.6
3x1.6= 4.8

Solve equation 6x+5=35

Answers

Answer:x=5

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

6x + 5 = 35

subtract 5 from both sides

6x = 30

divide by 6

x = 5

If both lines had been dotted lines instead, how might that have affected the possible solutions?

Answers

Answer:

Step-by-step explanation:

You will have less possible solution y is less than or y is greater than so everything touching the line will not be a solution just everything else.

SIMPLE MATH MONOMIAL PROBLEM, WILL MARK BRAINLIEST, 20 POINTS WORTH!!!
ATTATCHED BELOW

Answers

Answer:

That’s RSM!!!

Step-by-step explanation:

Use math-way, it helps that’s what I use for those problems.

Answer:

See picture explanation

Step-by-step explanation:

Find the value of x.
130°
(3x + 5)º

Answers

Answer:

15 = X . hope this helped

Use the scatter plot to fill in the missing coordinate of the ordered pair.

Answers

it looks like it would be (2,17) but could b wrong

Write the measurements for the angles.

Answers

Answer:

1: 45

2: 135

3: 45

4: 135

5: 60

6: 120

7: 60

8: 120

9: 75

10: 105

11: 75

12: 105

Step-by-step explanation:

1, 2, 3, and 4 and 9, 10, 11, and 12 can be solved using the vertical angle and supplementary angle rules. Vertical angles are always the same and supplementary angles always add up to 180. But to find 5, 6, 7, and 8, you need to find 5 using the rule where all the angles in a triangle add up to 180. Since we know the angles for 9 and 3, we can find the angle 5 and then we can finish finding the rest of the angles.

I hope this helps!

Mrs. Haley had 5/7 of a liter of salt water. She used 1/2 of a liter for an experiment. How much salt water does Mrs. Haley have left?

Mrs. Haley had
liters of salt water left

PLEASE HELP SOON!! :))

Answers

Answer:

Mrs. Haley had  [tex]\mathbf{\frac{3}{14}}[/tex] liters of salt water left.

Step-by-step explanation:

Mrs Haley has salt = [tex]\frac{5}{7}\:liter[/tex]

Mrs Haley used salt = [tex]\frac{1}{2}\:liter[/tex]

We need to find how much salt is left?

[tex]Salt\: left = Total\: Salt - Salt\: used\\Salt\: left = \frac{5}{7}-\frac{1}{2}\\Salt\: left =\frac{5*2-1*7}{14} \\Salt\: left =\frac{10-7}{14} \\Salt\: left =\frac{3}{14}[/tex]

So, Mrs. Haley had  [tex]\mathbf{\frac{3}{14}}[/tex] liters of salt water left.

find the value of B in the following equation if you know it goes through (-7,2). -7x+By=31

Answers

Hello!

[tex]\large\boxed{B = -9}[/tex]

Find "B" by plugging in the x and y values into the equation given:

-7x + By = 31

-7(-7) + B(2) = 31

49 + 2B = 31

Subtract 49 from both sides:

2B = -18

Divide both sides by 2:

2B / 2 = -18/2

B = -9

i need help with questions 12 and 13 please i dont understand this at all

Answers

Answer:

3rd and 4th options

Step-by-step explanation:

(12)

(f + g)(x)

= f(x) + g(x)

= x - 2 + 5x - 1 ← collect like terms

= 6x - 3

(13)

(g • f)(x)

= g(x) × f(x)

= - 3x(6x² - 3x) ← multiply each term in the parenthesis by - 3x

= - 18x³ + 9x²

ligth travels about 186,00 mi/s. the function d(t) = 186,000 gives the distance d(t), in mile, that ligth travels in t seconds. how far does ligth travel in 26s?​

Answers

Answer: The correct answer is 4,836,000 miles.

Step-by-step explanation: Multiply 186,000 the Miles per second, by 26 and it gets your answer.

8.4×10 to the power of 7-6.2×10 to the power of six in scientific notation

Answers

Answer:

84000000 and −6200000

HELPPP ASAP PLZZZ!!!!!

Answers

Answer:

its c

Step-by-step explanation:

why do I need to explain

the jayden family eats at a restaurant and their meal costs them 78.65. They have to pay a 6% sales tax, and they also want to leave a 20% tip. What is the total price of their meal?

Answers

Answer:

total price should be 100.04

Step-by-step explanation:

good luck!!

Como se resolvería este ejercicio paso a paso?
{x − 1 ≤ x ≤ 15}​

Answers

Answer:

which language it is ?i can't understand it

Step-by-step explanation:

please ask in english language

x - 1 less than equal to x less than equal to 15

x greater than equal to x - 1
x less than equal to 15

x less than equal to 15

the solution is (negative infinity sign, positive 15]

the answer in alternative form is x less than equal to 15

Help me out please asp

Answers

plug in the answers to see which has an equal scale factor between mp and mt, and po and tr

if tr = 6, then the scale factor between po and tr is 1.5

that means, that in order to equal 9 mt would have to be 3

if mt = 3, then the scale factor between mp and mt would also be 1.5

therefore, since they both have an equal scale factor, the answer is

4) TR = 6

hope this helps!!

Answer:

Option 4: 6

Have a wonderful day

Justify Step 3 of this Proof

Answers

Segment AC is equal to CA by Reflexive Property.

Fill in the blank to make the two fractions equivalent.​

Answers

Answer:

1/2 = 2/4

Step-by-step explanation:

The box plot below represents the number of hours Judy takes to complete a quilt.
++
22
24
26
28
34
36
38
40
30
32
Hours per Quilt
Which data set could be represented by this box plot?
O A. 39.32, 29, 22, 33, 29, 25, 37, 34
ОВ.
22, 27, 38, 34, 24, 32, 33, 30, 39
OC. 32, 36, 27, 30, 22, 35, 39, 28, 34
w
OD. 25, 36, 30, 32, 34, 39, 22, 29, 36

Answers

B. I think it’s b but I’m not sure

Franklin saw 12 blue, 18 red and 30 white cars drive by his house in 1 hour. What percent of the cars were blue?
A. 12%
B. 18%
C. 20%
D. 30%​

Answers

Answer:

C

Step-by-step explanation:

If UX=34 and VX=37, what is WX? Write your answer as a whole number or as a decimal rounded to the nearest hundredth. *

Answers

I believe the answer would be WX=39
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