Which value of makes this equation true?

12 − 9 + = 12

Answers

Answer 1

Answer:

+9

Step-by-step explanation:

12-9+x=12

3+x=12

x=12-3

x=9


Related Questions

If STU is reflected over a horizontal line, what is the length of side S'U'?

Answers

What is the original angle? You didn't provide us with enough information. If the angle is reflected, it'll be the same number of units as the original shape.

Hope this helped.

Subtract: (-5x + 8) - (3x + 5)​

Answers

Answer:

Solution: -8x + 3

Step-by-step explanation:

KHAN ACADEMY

(p.s. can u give me brainliest?)

Convert the following sentence into an algebraic expression: a number increased by 5

Answers

Answer:

x + 5

Step-by-step explanation:

Let x be the unknown number. Increased means adding, so you add 5 to the unknown number.

Resulting in x + 5

Unit 2 Mid-Unit Assessment

Answers

Answer:

users are not supposed to help you on test, quiz's or assessments. according to the T.O.S of brainly aka the honor code

Step-by-step explanation:

What are the zeros of f?
A graph of f(x) = 6x2 - 11x + 3 is shown on the grid.
A 3
A
B
2 and 9
C
1 1/2 품
11
12
1
IX
6
1
2
3
4
5
-6 -5 -4 -3 -2 -1
D
and
1 2 3 4

Answers

Answer:

x= 1/3 , 3/2

step by step

that should be the right answer

The process of eliminating a radical from the denominator of a radical expression is called

Answers

Answer:

rationalizing the denominator

Thank 0d0

Step-by-step explanation:

1) Veja o calendário de plantio e colheita do Arroz na região Centro-Oeste do Brasil . *

Answers

Answer:

sos, i dont understand

Step-by-step explanation:

2. Determine the slope of the line that passes through
the points (-1, -3) and (0, 6).

Answers

Answer:

9

Step-by-step explanation:

use the formula m = y2- y1 / x2 - x1

Answer:

Step-by-step explanation:

The slope of a line can be found using any two points of a line and the slope, m, is defined as

m=(y2-y1)/(x2-x1), we have points (-1,-3) and (0,6) so

m=(6-(-3))/(0-(-1))

m=9/1

m=9

If Samantha can make 6 bracelets in 1 hour and Payton makes 15 bracelets in 3 hours - what is the difference in the number of
bracelets they would make in 6 hours?

Answers

Samantha would make 36 bracelets in 6 hours, while Payton would make 30 bracelets in 6 hours. This means the difference in the number of bracelets they would make in 6 hours is 6 bracelets.

Given the graph of a quadratic function, use the intercepts and another point on the graph to write the equation of the function in standard form.

Answers

Answer:

-2x^2 +8

hope this helps ;)

Joey went to the county fair last weekend. When he got there, he had to walk 1/2 of a mile from the car to the entrance. Then he walked 11/16 of a mile to the carnival rides and 1/2 of a mile from the carnival rides to the farm animal show. Next, he walked 3/4 of a mile back to the car. How many miles did Joey walk in all?​

Answers

Answer:

39/16 or 2 7/16 miles

Step-by-step explanation:

find the common denominator between all fractions (16).

1/2 = 8/16

3/4 = 12/16

8 + 11 + 8 + 12 = 39

Therefore, Joey walked 39/16 or 2 7/16 miles in total

Each marble bag sold contains 4 green marbles for every 3 blue marbles if a bag has 21 blue marbles how many green marbles does it contain

Answers

4/3 = x/21
So you can cross multiply and divide:
3x = 84
x = 28

Or you can say 3 times what equals 21? The answer is 7. Then multiply 4 times 7 to get the answer. Whichever makes more sense to you :)

Jasmine and 4 friends moved 23 pounds of dirt. Each friend moved the same amount of dirt. How much dirt did each friend move?​

Answers

5.75 is the answer I just wanted to help but that like button

please help it’s due today!!!

Answers

Answer:

1=x and 2=y

Step-by-step explanation:

Thomas scored 257 points on the first three tests in class. What does he need to score on the next test to have a test average of 85?

A.
83

B.
79

C.
87

D.
91



Please help me

Answers

Answer:

The answer is A-83

[tex] \frac{257 + 83}{400} = 0.85[/tex]

help me what is the answer

Answers

Answer:

A. rational

Step-by-step explanation:

ive learned this before

Answer:

Whole C)

Square root of 144 is 12

Hope this helps! Have a nice life!

What are the three different kinds of problems we can solve using the percent proportion?

Answers

Answer:

We have now seen solutions method for the three basic types of percent problems ;finding the amount, the rate, and the base

HURRY PLEASE!!!!
Identify the graph of y = In x + 1.
X
64
RETRY

Answers

The Middle answer is the answer

6 / 32
Simplify
a)
4p + 2p – 3p
b)
9s- 5s + 2s-S
c)
8t + 3r - 76 - 9r​

Answers

Answer:

a.3p

b 5s

c 2r -76 this can be the answer

Answer: A) 3p , B) 5s , C) -6r+8t-76

Step-by-step explanation:

A ) 4p + 2p – 3p

combine like terms :-

(4p+2p+-3p)

(4p+2p+-3p) = 3p

= 3p

B ) 9s- 5s + 2s-S

combine like terms :-

( 9s-5s+2s+-s)

( 9s-5s+2s+-s) = 5s

C )  8t + 3r - 76 - 9r​

combine like terms :-

(3r+-9r)+(8t)+(-76)

= - 6r+8t+-76

In 2010, the price of a laser printer was $1599. In 2018, the price of the same type of printer had dropped to $579. Find the percent of decrease. Round to the nearest percent.

Answers

Answer:

nearest percentage=64%

Step-by-step explanation:

math

PLEASE HELP

Use the formula √(x2−x1)2+(y2−y1)2 to find the distance between the points(8,2) and (3,8) to the nearest tenth please

Answers

Answer:

Step-by-step explanation:

[tex]d=\sqrt{(3-8)^2+(8-2)^2} =\sqrt{25+36 }=\sqrt{61} \approx 7.81[/tex]

Find two integers whose sum is 17 and product is 72

pleaseee help

Answers

Your answer will be 9 and 8. I’m 96% sure

Hope it helps

i don’t know the answer

Answers

Answer:

C

Step-by-step explanation:

In order to be able to find the circumference in relation to radius, you have to use the formula C = 2πr

Hope this helped :)


HELP ME PLEASE ?!?!?

Answers

Step-by-step explanation:

According to phythagorous theorem

c²= 8²+6²

= c²=64+36

= c²=100

= c= \/100

c = 10 mm

Answer:

[tex]6 {}^{2} + 8 { }^{2} = 36 + 64 = 100[/tex]

H=√100=10mm

Hope it helps

Have a good day

A rectangle has area x3 + 3x2 - 18x in.2 and width x + 6 in. What is the length in inches?​

Answers

Answer:

HOPE THIS HELPS

Step-by-step explanation:

The area = length * Width.

We know the width = X+6 inches and Area = x^3+3x^2–18x.

This problem can be solved just by dividing the area by width and we get a quotient as X^2–3x.

So the length is x^2–3x inches.

The length of the rectangle is [tex]\rm x(x-3)[/tex].

Given

The area of the rectangle = [tex]\rm x^3+3x^2-18x[/tex] square inches

The width of the rectangle = x + 6 inches

Area of the rectangle

The area of the rectangle is equal to the product of length and width of the rectangle.

Let the length of the rectangle be L.

The area of the rectangle is given by;

[tex]\rm Area \ of \ the \ rectangle =Length \times Width\\\\[/tex]

Substitute all the values in the formula;

[tex]\rm Area \ of \ the \ rectangle =Length \times Width\\\\\rm x^3+3x^2-18x= L \times (x+6)\\\\L=\dfrac{ x^3+3x^2-18x}{x+6}\\\\L = \dfrac{ x(x+6)(x-3)}{x+6}\\\\ L = x (x-3)[/tex]

Hence, the length of the rectangle is [tex]\rm x(x-3)[/tex].

To know about rectangles click the link given below.

https://brainly.com/question/14383947

The Quadratic Formula gives which roots for the equation 3x2 + 3x = 2?

Answers

Answer: x=x=-3+/- sqrt 33/6

Step-by-step explanation:

Help me will mark brainliest!!!

Answers

Answer:

a ray can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction. It can extend infinitely in one direction.

Answer:

A ray can intersect a circle in a line segment

Because when a ray will pass through a circle,it will Pass through two points making it a line segment in the circle

[tex]n^{2} +3n-12=6[/tex]

Answers

Answer:

Step-by-step explanation:

n² + 3n - 18 = 0

n = [-3 ±√(3²-4(1)(-18)]/[2(1)] = [-3 ±√81]/2 = 3, -6

find the lateral area of this cone​

Answers

Answer:

lateral area = 180π in²

Step-by-step explanation:

The lateral area is the surface of the cone only.

perimeter of base = 12 x 2 = 24π in

Surface Area = 1/2 perimeter x slant height

SA = 1/2 x 24π x 15 = 180π in²

How does labeling the diagram help us show that we can use right triangle congruency (SAS in this case)?

Answers

Answer:

Step-by-step explanation:

S A S congruence rule: Two triangles are congruent if two sides and the included angle of one triangle are equal to the two sides and the included angle of other triangle.

If two triangles are congruent by SAS, and the angle is 90, then by CPCT{corresponding part of congruent triangle)  the hypotenuse of the two triangles will be congruent.

Now, as hypotenuse  and  one leg are congruent in both triangles, we can apply RHS congruent

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