what is –9 – (–13) and how do you solve

Answers

Answer 1
The answer is 4. you distribute the negative to make a positive sign and then add

Related Questions

Find the slope of the line that passes through the points (-4, 3) and (7, 5).

Answers

Answer:

2/11 is your slope

Step-by-step explanation:

If you use the point slope form: y2-y1/x2-x1, then you should be able to find your slope with two given coordinates

Answer:2/11

Step-by-step explanation: I am super good at math

Solve. x2 – 10x + 21 < 0

Answers

Answer:

(3,7)

Step-by-step explanation:

If tan 0 = 0.5, find the cot 0

Answers

Step-by-step explanation:

cot0=1/tan0

cot0=1/0.5=2

elaine rode her bike from her house to the library, to the park, and then back home. Elaine realized that her route made an isosceles triangle, and that the library was the exact same distance from both her house and the park. what is the measure of the angle at the park

Answers

Answer: I am fairly sure the answer is 56

Step-by-step explanation:

If the credentials to this question match with mine, your answer should be 56. I am sorry if this is wrong.

What is the result when 3x3−14x2+17x−63x 3 −14x 2+17x−6 is divided by 3x−23x−2?

Answers

2x-227 je pense,r éonse siplifié

Answer:

(12157)/(1000(-20x-2))

Step-by-step explanation:

What is the factorization of the trio mail below?

4x^2+28x+48

Answers

Answer:

Solution in photo

Step-by-step explanation:

Change the following equation from standard form to Slope-Intercept Form.


7x - 4y= 28

Answers

Answer:

y = [tex]\frac{7}{4}[/tex] x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

7x - 4y = 28 ( subtract 7x from both sides )

- 4y = - 7x + 28 ( divide all terms by - 4 )

y = [tex]\frac{7}{4}[/tex] x - 7 ← in slope- intercept form

share £747 in the ratio 2:7 between tom and ben

Answers

Answer:

Really hope this helps

Step-by-step explanation:

Tom= £149.40

Ben= £522.90

You and your brother are reading the same novel. You want to get ahead of him in the book, so you decide to read 30 minutes longer than your brother reads.
Write an equation for the number of minutes you read, y, when your brother reads x number of minutes.
How many minutes will you read if your brother reads for 15 minutes?
minutes

Answers

Answer: its 45 if i read it right.

Step-by-step explanation:

13) v2 - 110 + 18 = 0
14) 5x7 - 12x +7 = 0
Solve by factoring

Answers

Answer:

see explanation

Step-by-step explanation:

(13)

v² - 11v + 18 = 0 ← in standard form

(v - 2)(v - 9) = 0 ← in factored form

Equate each factor to zero and solve for v

v - 2 = 0 ⇒ v = 2

v - 9 = 0 ⇒ v = 9

solutions are v = 2, v = 9

(14)

5x² - 12x + 7 = 0

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 5 × 7 = 35 and sum = - 12

The factors are - 5 and - 7

Use these factors to split the x- term

5x² - 5x - 7x + 7 = 0 ( factor the first/second and third/fourth terms )

5x(x - 1) - 7(x - 1) = 0 ← factor out (x - 1) from each term

(x - 1)(5x - 7) = 0

Equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

5x - 7 = 0 ⇒ 5x = 7 ⇒ x = [tex]\frac{7}{5}[/tex]

solutions are x = 1, x = [tex]\frac{7}{5}[/tex]

What is an equation of the line that passes through the points (5,2) and (-5, -6)?

Answers

Answer:

y=4/5x+2

Hi! first things first, you want to find the slope. you do that by taking both y values, in this case they are 2 and -6.

then, you need to identify the two 2 x values, 5 and -5.

next, follow this formula: Y2-Y1/X2-X1. y value#2 is -6, and y value#1 is 2. subtract those numbers, to end up with -8. this will go on top of the fraction.  x value#2 is -5, x value#1 is 5. subtract (=-10) and put it on the bottom of the fraction.

now you have your slope! we now have y= -8/-10, or simplified is 4/5.

Now we find the y intercept. to do that, you want to pick a set of points. i'm going to be using (5, 2) because it will be the easiest.

lastly, set up the equation to find the y int: y- y1= m (x- x1)

y- 2= 4/5 (x- 5) = 2

In a survey of 1,700 people who owned a certain type of​ car, 425 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car?

Answers

Answer:

25%

Step-by-step explanation:

Given;

Total people surveyed = 1700 people

Total number of people that owned car = 425 people;

Percentage of people satisfied are those that owned car = 425/1700 * 100

Percentage of people satisfied = 42500/1700

Percentage of people satisfied = 25%

Hence 25% of the people surveyed were satisfied with the​ car

Bro could i get some help

Answers

Answer: wow that’s a lot of stuff

Step-by-step explanation:

Noice profile pic

Which Graph does NOT show a linear function?! HELP PLS

Answers

Answer:

The top right corner

Step-by-step explanation:

I hope you have a good day

Answer:

2nd One

Step-by-step explanation:

The answer is the 2nd one because it is not a line, and the rest are functions. This line is curved. Non-linear functions mean the graph is not a straight line, which would perfectly describe this one because it starts straight and curves up.

Samantha plays on the softball team for her school she strikes out twice after nine times she is at bat if she struck out 14 times this season how many times has she got back

Answers

Answer:

she got back 63 times

Step-by-step explanation:

Here, we want to know the number of times she is at bat

from the question, we are made to know that she strikes out twice after 9 times

So striking out 14 times, the number of times she has got back will be ;

14/2 * 9 = 63 times

please please please help me on this i'll give 14 points to whoever answers

Answers

Bro the answer is 600cm2
75% sure

6x - 12 y = 24
-х — 6у = 4


solve the system of equations.

Answers

Answer:

x = 2, y = -1

Step-by-step explanation:

Answer:

-6=4 no solutions

Step-by-step explanation:


Solve the equation.

5x>20

Answers

Answer:

x > 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Inequality

5x > 20

Step 2: Solve for x

Divide 5 on both sides:                   x > 4

Here we see that any value x greater than 4 would work as a solution to the inequality.

The coordinate grid below shows triangle ABC and its image after translation, triangle A'B'C': Triangles ABC and A prime B prime C prime are shown. A is at 3, 1. B is at 2, 6. C is at 6, 5. A prime is at negative 5, 4. B prime is at negative 6, 9. C prime is at negative 2, 8. Which of the following completes the rule for this translation, (x, y) → (x − 8, ___)? (5 points)

Answers

Answer:

y + 6

Step-by-step explanation:

you already got X so now you have to go up 6!

(took the Segment 1 exam its correct)

brainlyest plz

Answer:

y-3

Choose a point, any is fine. (I chose point c)

Count how many spaces it to get from point C to where point C' is on the x axis. (It already gave it to us. its 8)

Then count how many spaces it takes to get to C' on the y axis. (In this case you are counting down because A'B'C' is beneath ABC.)

I am extremely terrible at explaining things but hope this helps.

Step-by-step explanation:

2 questions

what are the odd numbers between 4 and 20?

what are the whole number less than 5?​

Answers

Answer:

odd numbers between 4 and 20 are:

5,7,9,11,13,15,17,19

whole numbers less than 5 are:

1,2,3,4

Hope this helps!:)

what is the coordinates of a?

Answers

Step-by-step explanation:

coordinate of A is -3,-1

Answer:

-3,-1 is answer hope you like

Suppose a mountain bike that sells for $419 is on sale for 33% off. If you purchase the discounted bike with 6% sales tax, what is the total amount you will pay?

Answers

You would pay $229. 419*.33 is 137. 6% of 137 is 82. 82 plus 137 is 229.

5. Identify the number that is the value of 600.

A. 6,000

B. 6

C. 60

D. 0.6

Answers

Answer:

I think it's 6 or 0.6

The correct answer is B


1. Find the area of each sector. Give your answer in two forms. 1) in terms of it and 2) using 3.14 for it.
Round all answers to the nearest tenth.

Answers

Answer:

1.

1) The area of the sector is 168.8π mi²

2) The area of the sector is 529.9 mi²

2.

1) The area of the sector is 42.3π in²

2) The area of the sector is 132.7 in²

Step-by-step explanation:

The formula of the area of a sector in a circle is A = [tex]\frac{x}{360}[/tex] × π r², where

x is the central angle subtended by the arc of the sectorr is the radius of the circle

1.

∵ The central angle subtended by the arc of the circle is 270°

x = 270°

∵ The radius of the circle is 15 mi.

r = 15

→ Substitute them in the formula of the area above

∵ A = [tex]\frac{270}{360}[/tex] × π (15)²

∴ A = 168.75π mi²

→ Round it to the nearest tenth

∴ A = 168.8π mi²

1) The area of the sector is 168.8π mi²

∵ π = 3.14

∴ A = 168.75 × 3.14

∴ A = 529.875 mi²

→ Round it to the nearest tenth

∴ A = 529.9 mi²

2) The area of the sector is 529.9 mi²

2.

∵ The central angle subtended by the arc of the circle is 90°

x = 90°

∵ The radius of the circle is 13 in

r = 13

→ Substitute them in the formula of the area above

∵ A = [tex]\frac{90}{360}[/tex] × π (13)²

∴ A = 42.25π in²

→ Round it to the nearest tenth

∴ A = 42.3π in²

1) The area of the sector is 42.3π in²

∵ π = 3.14

∴ A = 42.25 × 3.14

∴ A = 132.665 in²

→ Round it to the nearest tenth

∴ A = 132.7 in²

2) The area of the sector is 132.7 in²

A cookie factory uses 1 1/3 barrels of oatmeal in each batch of cookies. The factory used 2 2/3 barrels of oatmeal yesterday. How many batches of cookies did the factory make?

Answers

Answer:

2 batches

Step-by-step explanation:

A cookie factory uses 1 1/3 barrels of oatmeal in each batch of cookies

The factory used 2 2/3 barrels of oatmeal yesterday

Therefore the batches of cookies that were made yesterday can be calculated as follows

1 batch= 1 1/3 barrels

x = 2 2/3 barrels

Cross multiply

4/3 x = 8/3

x= 8/3 ÷ 4/3

x = 8/3 × 3/4

x= 2

Hence 2 batches will be produced

answer would be appreciated but you can just give me the formula instead !

Answers

Answer:

formula:

A=(A+B/2)H

Step-by-step explanation:

Hope I helped and good luck :)

OPEN ENDED QUESTION -8-7 ​

Answers

Answer:

-15

Step-by-step explanation:

Work out
a) 2/7+3/7
b)5/8+7/8
c) 2/3-1/2

Answers

Answer:

a)5/7

b)12/8 or 1 4/2 or 1/2

c)1/6

Step-by-step explanation:

Which expression is equivalent to the following complex fraction?

1 + StartFraction 1 Over y EndFraction divided by 1 minus StartFraction 1 Over y EndFraction

A,) StartFraction (y + 1) (y minus 1) Over y squared EndFraction
B.) StartFraction y + 1 Over y minus 1 EndFraction
C.) StartFraction y minus 1 Over y + 1 EndFraction
D.) StartFraction y squared Over (y + 1) (y minus 1) EndFraction

Answers

Answer:

umm...the wording is kinda confusing but im just gonna full send and say its c

Step-by-step explanation:

sry if its wrong lol (it probably is)

Answer:

Its actually B

Step-by-step explanation:

i AM THE edgEINGUITY GOD

Which expression is equivalent to 6a+5a?
WHOEVER ANSWERS FIRST WILL GET BRAINLIEST AND I NEED THE MATH TO IT

Answers

11a. There are 6A’s and if you add another 5a to it = 11a because 6+5=11

Answer:

11a

Step-by-step explanation:

You can combine like terms. Since they both have a after the number, you can just think of it as an addition problem. 6+5= 11. 6a+5a=11a.

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