Mathematics High School

All of the following are equivalent, except _____.

3x
2x 2
x(2 + 1)
2x + x

Answers

Answer 1
2x 2 is the answer your looking for,

When there are two variables (letters) you combine them by adding

Related Questions

Find the distance between the points (

–

9.5,4.1) and (2.7,4.1).

Answers

Answer:

Step-by-step explanation:

Distance formula: [tex]d=\sqrt{(y_{2}-y_{1})^{2}+(x_{2}-x_{1})^{2}}[/tex]

[tex]d=\sqrt{(4.1-4.1)^{2}+(2.7-9.5)^{2}}=\sqrt{(-6.8)^{2}} = 6.8[/tex]  

Note that distance is always positive

If £2000 is placed into a bank account that pays 3% compound interest per year,
how much will be in the account after 2 years?

Answers

£3880 is the answer after two years the amount will be 4000£ because 2000 x 2 =4000 and if it pays compound interest you would have to take 120 out of 4000 because 3% of 2000 is 60 so 60x2=120 4000-120=3880

what could be the value of x in the equation x/2+ 15 =64

Answers

Answer:

x = 98

Step-by-step explanation:

[tex]\frac{x}{2}[/tex] + 15 = 64 ( subtract 15 from both sides )

[tex]\frac{x}{2}[/tex] = 49 ( multiply both sides by 2 to clear the fraction )

x = 98

Find the measure of angle A.
4x
135°
5x
A

Answers

Using this equation:

[tex]4 \times + 5 \times + 135 = 180[/tex]

We can solve for X:

[tex]9 \times + 135 = 180 \\ 9 \times = 45 \\ \times = 45[/tex]

Multiply this value of x to 4 and 5 to get the other two angels.

A diver descended 21.83 feet in 5.9 minutes. What was the diver's average change in eleration per minute?​

Answers

3.7 feet per minute

Last month, a carpenter made 2 tables. This month, he made 50% fewer tables. How many tables did the carpenter make this month?

Answers

Answer:

1

Step-by-step explanation:

2 divided by 2

Answer:

1 table

Step-by-step explanation:

2 x 0.5 = 1

Hope this helps!

How do you find function f for piecewise function.

Answers

Answer:

The f(x) is equal to whatever is on the right side of the piecewise functions, as long as the conditions for x are met.

Step-by-step explanation:

An example has been attached

-- Gage Millar, Algebra 1/2 tutor

Write an equation of the line that passes through (-6,0) and $(0,-24)

Answers

Answer:

-4

Step-by-step explanation:

Y2 = -24 and Y1 = 0

X2 = 0 and X1 = -6

Y2-Y1/ X2- X1= -24 - 0/ 0 - (-6) = -4

y= -4x + c

y + 4x= c

Find the length of side xx in simplest radical form with a rational denominator.

Answers

Answer:

[tex]x = \frac{3}{ \sqrt{2} } [/tex]

Step-by-step explanation:

[tex] {x}^{2} + {x}^{2} = {3}^{2} \\ 2 {x}^{2} = 9 \\ {x}^{2} = \frac{9}{2} \\ x = \frac{3}{ \sqrt{2} } \\ x = 2.121[/tex]

help i don’t get it

Answers

Answer:

$75.3

Step-by-step explanation:

(7.80x7)+(6.90x3)

=54.6+20.7

=$75.3

I need help on two questions here’s the first one!



Antawn wrote a decimal. The value of the 8 in Antawn’s decimal is equal to 8 x 1/10. Which of the following numbers could be Antawn’s decimal?

A. 86.05
B. 68.05
C. 60.85
D. 60.58

Here’s the second question!

Brooklyn rode her bike a total of 75.8 miles in 3 days. She rode 25.2 miles on Friday and 16.9 miles on Saturday. How many miles does she ride her bike on Sunday?

A. 33.7
B. 34.7
C. 42.1
D. 117.9

Answers

Answer:

these are what I ythink the answers are

1) C

2)A

For 1. the answer is B

5p + 3 = 15
please convert this into a WORD PROBLEM​

Answers

Answer:

What is the value of p if 5p+3=15

Answer:

When the product of 5 number and a number is added to 3 result is 15. Find the number.

If Rebecca Picked 20 apples and gave away 10 and got 30 more back. How many does she have now?

Answers

40

If she picked 20 apples and gave away 10, she would have 10 apples. But if she got 30 more apples, she would have 40 apples

Hope this helps!!! If so please give brainliest

Maki~

Answer:

40 apples

Step-by-step explanation:

20 apples-10 apples+30 apples=

10 apples+30 apples=40 apples

help me please with my math

Answers

Answer:

P = 47.1 units

Step-by-step explanation:

the perimeter of the pair of straight opposite sides is 11+11, or 22

now you have 2 semi-circles, which equals 1 full circle which, if we find the circumference to then we just add it to 22 to get the entire answer

Circumference of circle with diameter of 8:

C = 2πr

C = 2π(4)

C = 8π

C = 25.13

now add 22 + 25.13 to get 47.1 rounded to nearest tenths place

Find the distance between the points (13, 20) and (18, 8).
13
7
11

Answers

Answer:  13

Step-by-step explanation:

See attached graph.

A third point (18,20) may be added to the two given points to form a right triangle with sides 5 and 12.  The distance, x, between the original two points is given by x^2 = 5^2 + 12^2

x^2 = 25 + 144

X^2 = 169

x = 13

16.3 divided 90

pls answer...

Answers

Answer:

Calculator

Step-by-step explanation:

Fraction: 163/900

Decimal: 0.1811111

help please
denominator only

Answers

Answer:

2+3=5 3-5=2

Step-by-step explanation:

that's the answer

7. What are the slope and y-intercept of y=3x-5?

Answers

Answer:

slope = 3

y-intercept = -5

Step-by-step explanation:

y = mx + b

m = slope; b = y-intercept

y = 3x - 5

y = 3x + (-5)

m = 3 = slope

b = -5 = y-intercept

Answer:

The slope is 3 and the y-intercept is negative 5.

The slope is defined in the equation by the number before the x and the y-intercept is defined in the equation by the number that follows. If there is no number then the y-intercept is zero.

Step-by-step explanation:

hope this helps. . . <3

good luck!     UwU

solve |8y+4|=2|y-1|
please show the work!

Answers

8y+4 = 2(y-1)
8y+4 = 2y-2
8y-2y+4 = -2
6y+4 = -2
6y = -2-4
6y = -6
y = -1

Devon's father is installing new wood flooring. He bought boards that are 10 ft long, 3/4 in. thick, and 11/24 in. wide. Determine the number of boards Devon's father will need for a 10 ft by 16 1/2 ft room. Plz plz help and the way to solve it plz!!!

Answers

Answer:

36 boards

Step-by-step explanation:

The boards are as long as the room, so I only had to worry about the width. If the boards were 1/2 ft wide, I would need 2 boards for every foot of width. For 16 ft, I would need 32 boards.

Instead of dividing, I wrote the equivalent multiplication by multiplying by the reciprocal of 11/24 (the reciprocal of 11/24 is 24/11)

I simplified by dividing both 2 and 24 by 2, and both 11 and 33 by 11.

Therefore he needs 36 boards

A researcher is interested in understanding whether the number of people in a room affects how much a person eats. During the experiment, the researcher varies the number of people in the room and records how much each participant eats. This is an example of:

Answers

Answer:

quantitative manipulation of the independent variable

can anyone help me solve this?

Answers

Step-by-step explanation:

a triangle,=180

so 68+35-180=77

then 77+68=145

24+18a=
help i can not get the answer

Answers

That is the simplest version. Unless you meant 24+18a=0. I assume you meant = 0. So, let’s subtract 24 on both sides. 18a = -24. Then let’s divide by 18 on both sides to get the answer, b = 3/4. Unless you didn’t mean the 0 there, the sneers is in simplest form then.

What equation is graphed in this figure?

· y-4= -1/3(x+2)

· y-3= -1/3(x+1)

· y+2= -3(x-1)

· y-5=3(x-1)​

Answers

Answer:

y-5=3(x-1)

Step-by-step explanation:

I hope it helped

Is this graph proportional or non-proportional? How do you know?

Answers

Answer:

It is a proportional graph.

Step-by-step explanation:

By definition, a proportional graph is a graph which goes through the origin (O), in this picture the graph appears to indeed go through the origin, and is thus proportional.

Solve the slope for this table.

Answers

Answer:

-1/3

Step-by-step explanation:

as x increases by 3, y decreases by 1, so the slope is y/x= -1/3

mr johnson borrowed $750 for 1 year. he has to pay 6% simple interest. how much interest will he pay?

Answers

Answer:

795$

Step-by-step explanation:

750 x 0.06 = 45

750 + 45 = 795

Can someone help me with this I’m confused?

Answers

the answer is 2/6, but you can reduce it by 1/2 which is 1/3

help for brainliest plz help i am stuck at thing

Answers

Answer:

= cot²A

Step-by-step explanation:

ito na po step by step explanation

[tex](1-sin^{2}A)(1+cot^{2}A) = cos^{2}A .\frac{1}{sin^{2}A } = \frac{cos^{2}A }{sin^{2}A } = (\frac{cosA}{sinA} )^{2} =cot^{2}A[/tex]

ok done. Thank to me :>

Gabriella made 5% of her free throws over the season. If she shot 180 free throws, how many did she make?

Answers

Answer:

9

Step-by-step explanation:

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