Mathematics High School

dont understand it all
​

Dont Understand It All

Answers

Answer 1

Answer:

u > 10  or u < -10

Step-by-step explanation:

|u| +11 > 21

Subtract 11 from each side

|u| +11-11 > 21-11

|u| > 10

There are two solutions, one positive and one negative.  Remember to flip the inequality for the negative

u > 10  or u < -10

Answer 2

Answer:

[tex]u<-10\quad \mathrm{or}\quad \:u>10[/tex]

Step-by-step explanation:

[tex]\left|u\right|+11>21\\\\\mathrm{Subtract\:}11\mathrm{\:from\:both\:sides}\\\\\left|u\right|+11-11>21-11\\\\Simplify\\\\\left|u\right|>10\\\\\mathrm{Apply\:absolute\:rule}:\\\quad \mathrm{If}\:|u|\:>\:a,\:a>0\:\mathrm{then}\:u\:<\:-a\:\quad \mathrm{or}\quad \:u\:>\:a\\\\u<-10\quad \mathrm{or}\quad \:u>10[/tex]

Related Questions

What does it mean to multiply 4 into 9895

Answers

Answer:

39,580

Step-by-step explanation:

It means to multiply 9895 4 times.

Hope this helps.

4% of 9895 is: 395.8

write an equivalent expression by simplifying 8(5x)

Answers

Answer:

40x

Step-by-step explanation:

If you multiply 5x 8 times, or add 5x +5x+5x+5x+5x+5x+5x+5x, you will get 40x.

Andy rode his bicycle 2
3
miles on Monday and 1
10
miles on
Tuesday

Answers

He rode 33 miles your welcome

1. Ed Shapiro works as an office manager. His annual salary is $48,300. What is his monthly salary?

Answers

Answer:

The answer is $4025

Step-by-step explanation:

In this problem we are given his annual salary. meaning per year. to find how much he makes in a month, we must divide by how many months there are in a year.

there are 12 months in a year.

so, 48300/12= 4025

hope this helps!

Answer:

$4,025 is his monthly salary.

Step-by-step explanation:

Annual salary means yearly. Since there are 12 months in a year, you would just take his annual (yearly) salary and divide it by 12 in order to get his monthly salary. Thus it would be:

[tex]\frac{48300}{12} =4025[/tex]

If AC = 150, AB = 4x+34 and BC = 6x+6, what is the value of x?

Answers

Answer:

  x = 11

Step-by-step explanation:

If we assume that points A, B, and C are on the same line with B between A and C, then we have ...

  AB +BC = AC

  (4x +34) +(6x +6) = 150 . . . . use the given expressions

  10x +40 = 150 . . . . . . . . . . . . collect terms

  10x = 110 . . . . . . . . . . . . . . . .  subtract 40; next, divide by 10

  x = 11

Can someone help me pls? *BRAINLIEST AND 15 POINTS*

Answers

Answer: D

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

d) x = 4/3

Step-by-step explanation:

Given equation,

→ -x + (3/7) = 2x - (25/7)

Now the value of x will be,

→ -x + (3/7) = 2x - (25/7)

→ -x - 2x = -(25/7) - (3/7)

→ -3x = -28/7

→ -3x = -4

→ x = -4/-3

→ [ x = 4/3 ]

Hence, the value of x is 4/3.

Write in Slope Intercept form: x-3y=-15

Answers

Answer:  Slope = 0.667/2.000 = 0.333

 x-intercept = -15/1 = -15.00000

Step-by-step explanation: y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  x-3y+15  = 0 and calculate its properties

Notice that when x = 0 the value of y is 5/1 so this line "cuts" the y axis at y= 5.00000

 y-intercept = 15/3  =  5

When y = 0 the value of x is -15/1 Our line therefore "cuts" the x axis at x=-15.00000

 x-intercept = -15/1  = -15.00000

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 5.000 and for x=2.000, the value of y is 5.667. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 5.667 - 5.000 = 0.667 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     =  0.667/2.000 =  0.333

 Slope = 0.667/2.000 = 0.333

 x-intercept = -15/1 = -15.00000

PLZ HELP ME I WILL CALL YOU BRILLIANT Austin is comparing the prices of two car rental companies. Company A charges $24 per day and an additional $25 as service charges. Company B charges $22 per day and an additional $40 as service charges.

Part A: Write an equation to represent each company's total charges for renting a car for a certain number of days. For both equations (one for Company A and one for Company B), define the variable used.
Part B: Which company would charge less for renting a car for 4 days? Justify your answer.

Part C: How much money is saved by using the services of Company A instead of Company B to rent a car for 6 days?

Answers

Answer

Step-by-step explanation:

Its A

HI um yeaaaa so do u still need help and um this is taylor megan is at school and aaahhhhh umm yea so................... bye bye

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4.7 x 6.8. help pls​

Answers

Answer:

4.7 * 6.8 = 31.96

Step-by-step explanation:

Mae Ling earns a weekly salary of $310 plus a 6.5% commission on sales at a gift shop. How much would
she make in a work week if she sold $4,500 worth of merchandise?
She would make $ ?

Answers

Answer:

$325

Step-by-step explanation:

Mae Ling earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a work week if she sold $4,800 worth of merchandise?

Aurora has a cell phone plan that charges $65 for phone service plus $12 for each gigabyte of data used each month.If her bill for September is $113, how many gigabytes of data did she use in September?

Enter your answer as a number, like this: 42

Answers

Answer:

4

Step-by-step explanation:

65 + 12x=113

12x=113-65

12×=48

×=48/12

x=4

find the square root of 13²​

Answers

The answer to that would be “169”

Pleaseee helppppp 3-6

Answers

Step-by-step explanation:

Here is Slope-Intercept Form for a line: y=mx+b

m is the slope

b is the y intercept

The y intercept is basically the point on the y axis where the line touches.

I will do #3 for you.

Let's first look for the y intercept. We can see that the line touches the y axis at -4, so that's it.

Let's put it into our equation, plugging in -4 for b. This is what we have so far: y=mx-4

To complete this equation, we still need to find the slope, m.

To find it, look at the point where the y intercept is, and count how many units you need to go up or down the y axis, and then right or left the x axis to get to another point on the line. The slope is equal to the change in y ÷ the change in x.

So we see that there's another point on (-3, -2), so let's try to get there from the y intercept.

We need to move two units up and 3 to the left.

In terms of y, we went up +2, and in terms of x, we went down -3

So our slope is 2/-3 or -2/3.

Now that we have our slope (m) and y intercept (b), we can plug it into out Slope-Intercept Equation, plugging in -2/3 for m:

y=-2/3x-4.

We don't need to find x or y. This is our answer for 3. Using the same method, you should be able to find the equations for the rest of the graphs. Good luck.

urgently need help from whoever knows how to use keep me change me flip me!!

Answers

Your going to keep the first fraction then change the sign to multiplatation and flip the last fraction. -77/9 (mixed number into fraction) x -7/11

539/99 and then you can simplify that into 5 4/9

Answer:

ik you have a answer already I just really needed points so please don't repeat the answer

la longitud del lado de un cuadrado si su área es 81 pulgadas cuadradas​

Answers

Answer:

kgr5igv%6ovdr

Step-by-step explanation:

g7id24ohswegbj see ohsd

During the winter, you charge people $15 for going to their house to shovel, then $11 for every hour you shovel. If you shovel 3 driveways in one day and make $89 that day, how many hours did you spend shoveling?

Answers

Answer:

4

Step-by-step explanation:

15x3=45

89-45=44

11x4=44

Answer:

Spent 4 hours shoveling

Step-by-step explanation:

15 x 3 = 45

89 - 45 = 44

44 / 11 = 4

I hope this helps you :)

Please I really need help

Answers

Answer:

a: 130

b: 130

c: 50

Step-by-step explanation:

a straight line has an angle of 180, so those two angles are going to add up to 180. and opposite angles are equivalent

Answer:

A. is 130

B. is 130

C. is 50

hope it helped!

p.s it would be cool if you gave me brainliest

Which of the following numbers is written in scientific notation?
17 x 10°
5.23 x 10
17
5.23
Choose the correct answer below.
OA. 5.23 x 10°
OB. 17x10°
OC. 17
OD. 5.23
Click to select your answer.

Answers

Answer:

OD.5.23 hope this helps

In destroit at 10 am,the temperature was -6 degrees.By 2 pm,it had increased 20 degrees.what was the temperature at 11 am? (hint:draw a number line).
A)14 degrees.
B)-26 degrees.
C)-14 degrees.
D)26 degrees.​

Answers

Answer:

A

Step-by-step explanation:

I don’t understand this and I need help figuring it out, please.

Answers

Answer:

it would be C

Step-by-step explanation:

hope it helps

Answer:

C

Step-by-step explanation:

You can see that 14 turned into 28, which means multiplication.

Two coordinates a (-7, 7) and b (3, 4). find ab

Answers

Answer:

10.86

Step-by-step explanation:

once youve plotted the points a and b, use Pythagorean theorem to determin the distance between the two

again, im not the greatest at explanations so thats all i can say kfjskdfjd

Can someone please help me with these two problems

Answers

Answer:

no

yes

Step-by-step explanation:

y < 5x - 4

1 < 5(1) - 4

1 < 1

This is not a true statement. 1 cannot be less than 1 itself so the answer is no.

7x - 4 < 28

7(0) - 4 < 28

-4 < 28

This is a true statement so the answer is yes.


1. No
2. Yes
I hope this helps

Find the values of a and b​

Answers

Answer:

a = 14°

b = 36°

Step-by-step explanation:

4b - 12 + 48 = 180 (supplementary)

Rearrange

4b = 180 - 48 + 12

4b = 144

b = 36°

4a - 8 + 4b - 12 = 180 (supplementary)

sub b = 36 into equation

4a - 8 + 144 - 12 = 180

Rearrange

4a = 180 - 144 + 12 + 8

4a = 56

a = 14°

What is 153×694 pleas someone help me

Answers

The answer is 106,182

Answer:

106182

Step-by-step explanation:

The difference of two positive numbers is 13. The larger number is nine less than twice the smaller number. Find
the numbers.
The numbers are

Answers

This is solution.

Click on the photo to view full solution.

SUPER EASY YALL!
Solve for the unknown number (x)
34 + x = 42

Answers

Answer:

34 +x = 42

x = 42- 34

= 8

is the right answer

Answer:

8

For this problem, subtract 34 from 42.

42 - 34 = 8.

You get the number 8.

It will be your answer. Hope this helps!

a red candle is 8 inches tall and burns at a rate of 7/10 inches per house a blue candle is 6 inches tall and burns at the rate of 1/5 inches per hour after how many hours willl both candles be the same height? ~ASAP HELP PLS THIS IS DUE IN A FEW HOURS!!~

Answers

Answer:

it will take 6 hours, or at least im pretty sure it will

Step-by-step explanation:

can anybody help with any of these questions using percentage?

Answers

what do you take?
explanation:

(C) In the past 9 days, Lena has received the following numbers of email advertisements per day:
40, 41, 42, 43, 46, 48, 50, 52, 85.
Which measure should be used to summarize the data?
Mean
Median
Mode

Answers

median -46
mode-40,41,42,43,46,48,50,52,85
mean-49.666

someone please help!!

Answers

1) 0=3-8x
8x=3
X=3/8

2)3-8•0=3 g(x)=3

3)-5=3-8x
8x=3+5
8x=8
x=1

4)3-8•3=3-24=-19 g(x)=-19
Hope it helps

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