Mathematics High School

HELPPP
Simplify 2x + 1 - x+ 2.
A) 3x + 3
B) x-3
C) 3x-1
D) X+3.

Answers

Answer 1

Answer:

x + 3

Step-by-step explanation:

Add the numbers

Add the numbers

2x + 1 - x + 2

2x + 3 - x

Combine like terms

2x + 3 - x

1x + 3

Multiply by 1

BAM

Related Questions

Write each number in scientific notation. 1. 14,700
2. 0.00083
3. 760,000,000
4. 0.038
5. 0.38
6. 3.8
7. 3,800,000,000,000
8. 0.0000000009​

Answers

1.) 1.47 x 10^4 is the correct answer

i neeeddddd helpppppppp plllllzzzz

Answers

Step-by-step explanation:

-3x + 7y = 5x + 2y (you subtract the 2y from both sides)

-3× + 5y = 5x (then add 3x to both sides)

5y = 8x (use x = - 5)

5y = 8x - 5 = -40 (both sides are divided by 5)

y = -8

answer is (-5, -8)

100 points pls help
State the inverse for: Square root
A. Linear
B. Quadratic
C. Square root
D. Cube
E. Cube root
pls help thx

Answers

Cube ........ good luck Black Lives Matter.

Step-by-step explanation:

is this a multi choice???

Can you figure out the number riddle for 100 Points


I am an even number.
I am less than 100.
The sum of my digits is 15.
I am a multiple of 12.
What number am​ I?

Answers

Answer:

The number of the size of the cup is determined by ____________ diameter of the cup.

Step-by-step explanation:

Answer:

I may be wrong but the answer is 96 if it is not you can delete my answer.

I'm sorry if i'm not much help.

Apply the algebra tiles to find (5x^2+x+7)+(6x+4)

Answers

Answer:

=5x2+7x+11

Step-by-step explanation:

g= 7
h=5
Work out the value of 3g + 2h

Answers

Step-by-step explanation:

3*7+2*5

21+10

31

than k

3g+2h
3*7+2*5
21+10
->31

Triangle ABC has the following characteristics. Angle A is right angle. AB=8. AC= 15. Find BC

A. 12
B. √161
C. 17
D. 23​

Answers

answer is c
use pythagorean
a^2 + b^2 = c^2

8^2+15^2= c^2
289=c^2

sqrt both sides

c=17

BC=17

Lori is running in a marathon, which is 26.2 miles long. So far, she has run one-tenth of the marathon. How far has Lori run

Answers

Answer:

lori has run 2.62 miles

Step-by-step explanation:

Do 26.2/10

Can you solve this problem ​

Answers

Answer: YES!!!!

Step-by-step explanation:

PLEASE HELP ME ALSO- GO TO MY PROFILE AND ANSWER THE LAST Question.

Answer:

Step-by-step explanation:

-9e - 4 > 41
show u work plz

Answers

Answer:

e = -5

Step-by-step explanation:

-9e - 4 > 41

     +4    +4

-9e > 45

divide by -9 on both sides

e = -5

Hope dis helped!

Kayla buys a video game for $19 plus a 6% tax. Michael buys a volleyball for $18 plus a 6% tax Enter the diference in the
amount Kayla and Michael paid, including tax. Round your answer to the nearest cent.

Answers

Answer:

$1.06

Step-by-step explanation:

Kayla: 19 increase 6% =

19 × (1 + 6%) = 19 × (1 + 0.06) = 20.14

Michael: 18 increase 6% =

18 × (1 + 6%) = 18 × (1 + 0.06) = 19.08

Difference: 20.14 - 19.08 = 1.06

Given a circle with radius of 18 m, what is the diameter?

Answers

Answer:

d=36m

Step-by-step explanation:

d=2r=2·18=36m

Answer:

Your in luck! I'm actually learning this right now!

Step-by-step explanation:

d = 2r so basically your diameter is your radius times 2! So 18 x 2 = 36 so the answer should be 36 hope this helps!

A Mars rover descended from the rim of a crater at a constant rate. After 2 days, the rover's elevation was 106 meters. After 6 days, its elevation was 48 meters. What elevation did the rover start at? ____meters Complete the equation that describes the relationship between the rover's elevation in meters, E, and the elapsed time in days, t. Write your answer using whole numbers or decimals rounded to the nearest tenth. E= ___ t+____

Answers

Answer:

135

E = - 14.5t + 135

Step-by-step explanation:

Given that, descent rate is constant ;

Elevation after 2 days = 106 m

Elevation after 6 days = 48 m

Let

Rate of elevation per day= x

Initial elevation = a

Hence,

a - 2x = 106 - - - (1)

a - 6x = 48 ___(2)

-2x + 6x = 106 - 48

4x = 58

x = 58/4

x = 14.5 meters per day

Hence, initial elevation :

a - 2(14.5) = 106

a - 29 = 106

a = 106 + 29

a = 135

Relationship between Rover's elevation, E and elapsed time, t

E = - 14.5t + 135

-14.5 = rate per day

Which is the x coordinate of the point on the graph ?

Answers

Answer:

-5

Step-by-step explanation:

Cuz it lines up to -5 on x-axis

X= -5
Y=- 7
You just have to follow the line

What are the roots of 2x² – 5x + 2 = 0?

Answers

The root is 10 because 2x5 is 10 so that’s ur answer

For* 15-16 find the number of sides if a polygon has the given measure for each interior angle,
170
15 n=a) 21 b) 24 c) 30 4) 36 )42
162
16. n = a) 16 D) 20 c)24 d) 28 ) 32
60
For #17 - 24. determine the sum of the interior angles then find the missing angle.
17. sum = a) 120 b) 140 c) 160
d) 180 e) 200
18 x= a) 40 b) 50 c)60
d) 70 e) 80
X
70
120
19 Sum = a) 300 b) 330 C) 360 d) 380 e) 410
20 X a) 50 b) 60 с) 75 d) 80 e) 85
90
90
-
-
-
-
-
-
-
-
-
1
-
1
1

Answers

Answer:

15. d) 36

16. b) 20

17. d) 180

18. b) 50

19. c) 360

20. b) 60

Step-by-step explanation:

To find the number of sides a polygon has giving an interior angle, use the equation:

(number of sides - 2)*180/(number of sides) = measure of interior angle

15. (n = number of sides)

((n-2)*180)/n = 170

180n-360 = 170n

10n = 360

n = 36 (d)

16. (n = number of sides)

((n-2)*180)/n = 162

180n-360 = 162n

18n = 360

n = 20 (b)

17. The sum of the interior angles of a triangle is always 180 (d)

18. 180-60-70 = 50 (b)

19. The sum of the interior angles of a quadrilateral is always 360 (c)

20. 360-120-90-90 = 60 (b)

PLEASE HELP ME ILL MARK U BRAINLIEST :)

Answers

Answer:

c. 23 packages

what quadrant is 0,-3

Answers

Answer:

it would be quadrant 4.

Step-by-step explanation:

you have to go down and it would be right there

What is the final amount if 700 is decreased by 6% followed by a 7% increase Rounded to 2 decimal places

Answers

Answer:

816.67

Step-by-step explanation:

Decease by 6%:

700 * 0.94 = 658

Increase by 7%

658 * 1.07 = 704.06

Final answer: 704.06

Hope this helps!

-2 (z + 11) = 6

Please help. You have to use distributive property.

Answers

Answer:

-14

Step-by-step explanation:

-2(z+11)=6

-2z-22=6

-2z=28

z=-14

cual es la raíz cuadrada de 8​

Answers

Answer:

2.8284

Step-by-step explanation:

9, 14, 7, 9, 3, 12, 5,4
Find the mean and median travel times for these students.
If necessary, round your answers to the nearest tenth
Mean: _ minutes

Median: __ minutes

Answers

Answer:

mean: 65

median: 9

Step-by-step explanation:

You take all the numbers you have and add them up. Make it simple by adding smaller numbers together. Then once you have the total which is 65 you divide it by the total of numbers you have and then round because after dividing you get 8.125 and the safest way to round is to 9.

can someone pls help me

Answers

The m in y=mx+b stands for the Slope of the equation

Answer:

The slope

Step-by-step explanation:

Y= y intercept

hope this helps :)

Can somebody help me with this question. Will mark brainliest.

Answers

Answer: I think it's 29.4

Step-by-step explanation:

13.4 is the ansers baby

A linear equation is shown on the graph. Which equation best represents the
relationship between x and y?
SOMEONE PLEASE HELP ASAP

Answers

Answer:

y=2x+1

Step-by-step explanation:

A school club sold 300 shirts. 31% were sold to fifth-graders, 52% were sold to sixth graders, and the rest were sold to teachers. How many shirts were sold to each group -- fifth graders, sixth graders, and teachers? Explain or show your reasoning.

Answers

Answer:

Fifth graders= 93 shirts

Sixth graders= 156 shirts

Teachers= 51 shirts

Step-by-step explanation:

31% of 300 is 93

52% of 300 is 156

The total number of shirts sold to fifth graders and sixth graders is:

156+93= 249

The number of shirts sold to teachers is:

300-249= 51

solve the equation for the value of x. 1/6 (18-x) = 0

Answers

Answer:

x=18

Step-by-step explanation:

Simplify 12/3 + 6•2.
O A.
dot
B. 20
C. 16
D.
9

Answers

12/3 is 4 and 6•2 is 12 4+12 is 16 so C
C or 16 that’s all yeah Yw

Question Progress
Homework Progress
16/32 Marics
Toby goes on holiday to Geneva, Switzerland.
In Geneva, Toby sees a watch costing 193.75 CHF (Swiss Francs).
In Manchester, an identical watch costs £145.
Given that £1 = 1.55 CHF
a) In which city is the watch cheaper?
b) By how much is it cheaper (in £)?​

Answers

193.75 divided by 1.55 = £125
So I was cheaper in Switzerland

-10(-3m-10)-3(-8m+3)

Answers

-10(-3m-10)-3(-8m+3). -10*-3m-10*-10-3*-8m-3*3. 30m+100+24m-9. 30m+24m+100-9. = 54m+91
Other Questions
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