Mathematics High School

Select ALL expressions that simplify to 2x -1.

a. 8x - 6x - 3 - 2
b. 9 -7x + 3x -8
c. x + x - 1
d. 3x + 2 -x - 2
e. -5 + 10x - 8x + 4

Answers

Answer 1

Answer:

A,C, and E

Step-by-step explanation:

a. 8x - 6x - 3 - 2

=2x-1 YES

b. 9 -7x + 3x -8

=9-8-7x+3x NO

c. x + x - 1

2x-1 YES

d. 3x + 2 -x - 2

=3x-x+2-2

2x+0 NO

e. -5 + 10x - 8x + 4

=10x-8x-5+4

=2x-1 YES

Hope it helps!

Answer 2
Please give the person above me brainiest because they gave you all the answers ^^^^^^

Related Questions

3. What kind of angle is this?
Right Angle
Straight Angle
Obtuse Angle
Accute Anglw

Answers

Answer:

That's acute angle

Right angle is exactly 90 degrees

straight Angle is exactly 180

obtuse angle is greater than 90 degrees and less than 180 degrees

acute angle is less than 90 degrees

what is the mean price of $29 $58 $15 $129 $75 $22

Answers

55 is your answer
each number added together sums up to $330
there are 6 numbers
if you divide 330 by 6 you will get 55

pls help ! tysm!!!!!!!!!!

Answers

Answer:

332

Step-by-step explanation:

332

Answer is 332 hope this helps you have a great day

Factor this quadratic equation x^2-3x=0 showing all steps

Answers

Answer: x = 0; x = 3

Step-by-step explanation:

x^2 - 3x = 0

1. x is a common factor, so factor it out

x(x - 3) = 0

2. set both factors equal to zero

x = 0

x - 3 = 0

3. final answer

x = 0

x = 3

What would the simplified equivalent of (3^-3)^2 be?

Answers

Answer:

3

-----

2

Step-by-step explanation:

A truck is painting traffic lines along a highway the truck paints 8 miles of lines in 3 hours at the rate how many miles can a truck paint in 12 hours.

Answers

Answer:

The truck can paint 32 miles in 12 hours.

Which of the following has a value that is greater than 10,000 but less than 100,000?

Answers

Answer:

8.721 x 10^4

Step-by-step explanation:

hope this helps:)

Write a unit rate that compares 48 kids to 6 teams.
(Answer in the form of a:b)

Answers

a : b = 8 : 1

Answer:

kids : teams

a : b

48 : 6

( 48 : 6 ) ÷6

8 : 1

simply the expression 2(10)+2(x+4)

Answers

Step-by-step explanation:

2(10)+2(x+4)

20 + 2x + 8

20 +8 +2x

28+2x

Answer :

2x+28

Explanation

all of the following represents three multiplied by six except
3 × 6
3 . 6
3 (6)
3:6​

Answers

Answer:

the second one

Step-by-step explanation:

non

Identify A, B, and C

-6x2-5x+3=-8X2-4x

Answers

I’m not really good at maths and I also don’t understand the question but just check it out

hii please help i’ll give brainliest

Answers

-(-3) is the right answer

A bag contained 5 red, 8 blue, and 7 white marbles. Jose drew two marbles from the bag one at a time, without replacement. What is the probability that jose chose two blue marbles

Answers

Answer:

the probability that jose chose two blue marbles would be 8/20

Step-by-step explanation:

Duran is making party favors by placing a circular disk in the bottom of a plastic bag. Each disk has diameter of 6 centimeters. What is the area of the disk to nearest hundredth. ** Use 3.14

A. 18.84

B. 28.26

C. 91.06

D. 113.04

Answers

Answer:

B. 28.26

Step-by-step explanation:

What is the value of this expression when X=-1 and Y = 2?
4x3y2

Answers

Answer:

-16

Step-by-step explanation:

4x3y2

replace variables with numbers

4×-1×2×2

-4×4=

-16

Find the axis of symmetry of the following parabola algebraically Y=-x^2+14x-41 I only have one more attempt left to get this question right can someone please help and explain also? And can this be done ASAP Thank you:)(No links or I will report)

Answers

it’s i’m sure of it hope this helps


What is the value of x?
A. 25°
B. 50°
C. 55°
D. 75°
E. 80°

Answers

Answer:

Option Bx = 50°

Step-by-step explanation:

By the condition,

25° + 105° + x = 180° [Angle sum property of triangle]

=> 130 + x = 180

=> x = 180 - 130

=> x = 50° (Ans)

I am not 100% but I guess it’s B

The Hiking Club plans to go camping in a State park where the
probability of rain on any given day is 30%. What is the probability
that it will rain on exactly one of the five days they are there? Round
your answer to the nearest thousandth.

Answers

Answer:

0.013

Step-by-step explanation:

Use binomial probability:

P = nCr pʳ (1−p)ⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

and p is the probability of success.

Given n = 6, p = 0.69, and r = 0 or 1:

P = ₆C₀ (0.69)⁰ (1−0.69)⁶⁻⁰ + ₆C₁ (0.69)¹ (1−0.69)⁶⁻¹

P = (1) (1) (0.31)⁶ + (6) (0.69) (0.31)⁵

P = 0.013

I dont know what To Put here srry
There is a question here it pic

Answers

Answer:

31.4 OR 10π

Step-by-step explanation:

circumference of the circle: 2 × 3.14(π) × radius

the radius in the circle shown is 5

2 × 3.14 × 5 = 31.4

or

2 × π × 5 = 10π

5 x2 is 10 then times pi would be 31.4

answer but no links. quickly please

Answers

Answer:

1. 18

2.3 and 3/4

3.6 and 1/4

Step-by-step explanation:

3 by 6 equals 18 since 12 divided by 2 is 6

15 divided upon 4 is 3.75 or 3 3/4

50 divided by 8 equals 6.25 or 6 1/4

The box plot show the price of textbooks at a local high school. What range describe the middle 50% if the price (p) of the textbooks?

Answers

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the box plot is not attached.

However, the interpretation of the question is to determine the inter-quartile range (IQR) ; this represents the middle 50% of scores

To answer this question, I will make use of the attached box plot.

IQR is calculated as:

[tex]IQR = Q_3 - Q_1[/tex]

[tex]Q_1[/tex] and [tex]Q_3[/tex] are represented by the vertical edges of the rectangle in the box plot. [See attachment]

Reading [tex]Q_1[/tex] and [tex]Q_3[/tex], we have:

[tex]Q_1 = 37[/tex]

[tex]Q_3 = 50[/tex]

The IQR is:

[tex]IQR = 50 - 37[/tex]

[tex]IQR = 13[/tex]

Hence, the range that describes the middle 50% of the attached plot is 13

Name a pair of vertical angles

Answers

Answer:

Angle 2 and Angle 4 are vertical angles

Angle 2 and angle 4

Fifteen 7th graders were asked how many hours they spend doing homework each week and how many hours they spend watching television each week. the results are shown in the dot plots below

Answers

Answer:

A.

18 > 14, true

B.

12 - 16 = -4, true

C.

Mean:

Homework = (4 + 6*2+10*3+12*2+14*4+16*2+18)/15 = 11.73Television = (0 + 10*3+12*1+16*3+18*4+20*3)/15 = 14.8

The difference:

14.8 - 11.73 > 1, NOT true

D.

True

One more than the product of 17 and Matt's savings

Use the variable m to represent Matt's savings.

Answers

Answer:

17m=2

Step-by-step explanation:

hey plz pick mine as the brainliest?

how do i do this?....... ​

Answers

Order of operations (from high priority to low priority):

Parentheses

Exponents

Multiplications/Division

Addition/Subtraction

All in left to right.

2 ÷ (5 + 3)⁻¹ ÷ 4

2 ÷ (8)⁻¹ ÷ 4

2 ÷ 1/8 ÷ 4

16 ÷ 4

= 4

Answer is 4
2:1/8:4=2*8/4=16/4=1

Danielle earns a 7.5% commission on everything she sells at the electronics store where she works. How much commission did she earn last week if she sold $3,500 in electronics merchandise?

Answers

Answer:

$262.5

Step-by-step explanation:

Given data

Commission earned= 7.5%

Sales for last week=  $3,500

Let us find the amount of the commission

=7.5/100* 3500

=0.075*3500

=$262.5

Hence the commission earned last week is

$262.5


Matt's savings account earns 2% interest each year. He had $200.00 in his savings account
at the beginning of the first year. If he did not deposit or withdraw any money, what is the
value of Matt's savings account at the end of the second year?

Answers

Answer:

208.08

Step-by-step explanation:

math

Answer:

204

Step-by-step explanation:

2% of 200 is 2 so after second year it will be 200,+2+2 that is 204

ANSWER NUMBER 2 PLEASE

1. The following test scores were collected from a math class: 84, 72, 78, 80, 75, 88, 43, 90, 75. Determine the outlier.

The outlier is 43.

2. Based on the data set in #1, which measure would better describe the test scores?

A. Mean
B. Median​

Answers

It would be the mean I’m pretty sure

Answer:

B: Median

Step-by-step explanation:

If there is an outlier then the median is better.

If there isn't an outlier then the mean is better.

Geometry help please. What is J? What is G?

Answers

Answer:

j = 32

g = 78

Step-by-step explanation:

because they are similar you can use CPCTC corresponding parts of congruent triangles are congruent to determine f = j and h = g

Hello I need help with this question. Can you please explain how to got your answer?

Answers

Answer:

B) y = 4/3x - 2

Step-by-step explanation:

In pic below.

Answer:

The correct answer is B

Step-by-step explanation:

hope it will help you

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