Simplify by combining like terms: 3x - 5 + 12x - 10


PLS HELP FAST I NEED GHE ANSWER BADLY‼️‼️

Answers

Answer 1
15x-15 that is the answer to the question
Answer 2
combine 3x+12x which =15x then -5-10=-15
divide then x=1

Related Questions

what did you do today? 3 things

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Answer:

eat sleep play

Step-by-step explanation:

Which is true of the models? Check all that apply.

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Answer:

what models

Step-by-step explanation:

we can’t see the models

7.5 meal; 6.5% tax


PLS HELP ME!!!!!!

Answers

Answer:

$7.99

Step-by-step explanation:

6.5% of 7.5 = 0.4875

7.5 + 0.4875 = 7.9875 or about 7.99

Is y= -x a linear equation

Answers

Answer:

yes

Step-by-step explanation:

What is the area?
4 m
7 m
8 m

Answers

Answer:

224

Step-by-step explanation:

Multiply all the numbers

Solve for j 8 - 4j = -8j​

Answers

Answer:

J = -2

Step-by-step explanation:

You must isolate the variable by dividing each side by factors that dont contain the variable.

So J would equal -2

Solve for J is -2. Hope it helps

Can someone help me understand where the positive 2 came from?

Answers

-2 times -1 = positive 2
(two negatives cancel out to form a positive)

Answer:

4(-2)-(0)-2(-1)

a negative number multiplied by a negative number will always equal a positive number as the two negatives cancel each other out.

-2 multiplied by -1 equals positive 2

this is why the 2 is positive.

What is 1.75 kilometres as a fraction of 700 metres?
Give your answer in its simplest form

Answers

Answer:

5/2

Step-by-step explanation:

1km=1000m

1.75 x 1000=1750

1750/700 = 5/2

Can someone help me with this question please

Answers

39 feet is the answer i think

Jackie has a recipe for banana bread. She uses 4 1/2 cups of flour to make 3 loaves of banana bread. Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour. Which of these equations represents the relationship between b and f? HELP
b=9/2f

b=3/2f

b=2/3f

b=2/9f

Answers

Answer:

b

Step-by-step explanation:

GEOMETRY!!!! pls help (also pls explain)

Answers

We have an angle and an adjacent side, and we are looking for an opposite side. Because we have adjacent and opposite, that tells us that we need to use tangent.

10 * tan(31) = 6.008, when rounded to the nearest tenth you would just say 6.

To answer this question, you need trigonometry.

Are you familiar with the chant soh cah toa?

In here, you can see that the side you have is adjacent to the angle you have, and you're trying to find the opposite side. This means you need tangent = opposite ÷ adjacent

If the angle was 30° 45° or 60° Then there is a table you can use to calculate, but there isn't so just use a calculator

tan 31° = x ÷ 10

can someone help me please

Answers

Answer:

39 yards.

Step-by-step explanation:

52 squared plus B squared equals 65 squared

The answer of this question is B. 39 yards

Find the measure of interior angle C of hexagon OCEANS in which the
measure of the interior angles are:
O: 3x + 15, C: 2x + 30, E: 5x + 10, A: 2x + 55, N: 2x + 60, and S: x - 35.

Answers

Answer:

The measure of the interior angle C is [tex]108^{o}[/tex].

Step-by-step explanation:

Sum of angles in a polygon = (n - 2) x 180

where n is the number of sides of the polygon.

For a hexagon, n = 6. So that;

Sum of angles in a hexagon = (6 - 2) x 180

                                     = 4 x 180

                                     = [tex]720^{o}[/tex]

Sum of angles in a hexagon = [tex]720^{o}[/tex]

⇒ 3x + 15 + 2x + 30 + 5x + 10 + 2x + 55 + 2x + 60 + x - 35 = [tex]720^{o}[/tex]

15x + 135 = [tex]720^{o}[/tex]

15x = [tex]720^{o}[/tex] - 135

15x = 585

x = [tex]\frac{585}{15}[/tex]

  = [tex]39^{o}[/tex]

But,

C = 2x + 30

   = 2(39) + 30

   = 78 + 30

   = [tex]108^{o}[/tex]

The measure of the interior angle C is [tex]108^{o}[/tex].

Can someone help me solve this Y=5/2x-1

Answers

Answer:

m= 5/2

Step-by-step explanation:

What is the volume of the rectangular prism shown below?
12 in
3 in
9 in
Formula List: Link
24 inches cubed
324 inches cubed
162 inches cubed
104 inches cubed

Answers

the volume of the rectangular prism is 324 inches cubed

PLEASE HURRY WILL GIVE BRAINLIST ​

Answers

I don’t wanna do this equation by 75 -45 is going to get you 75 and then you take 180-75 which is 105 and you take one of the 105-65 which is 35

Answer:

87

Step-by-step explanation:

What is the graph of the function f(x) = the quantity of x squared minus 7 x plus 12, all over x minus 3? (1 point)

Answers

Answer:

Step-by-step explanation:

Hyhh

Write the percent as a fraction in simplest form and as a decimal: (two answers) 20% of the books

Answers

Decimal 0.2 fraction 1/5

The graph shows the number of each type of sticker in a box.
Stickers
30
25
20
Number in Box
15
JU
10
5
0
bear
cat
frog
rabbit
dinosaur
Type
How many fewer frog stickers are there than cat stickers?
O A 10
O c. 2o
D. 25
B. 15

Answers

Answer:b?

Step-by-step explanation:

Learning Task 1: Solve for n. Write your answer in your notebook.
1. 7.26 x 0.22 = n
2. 17.92 x 0.64 = n
3. 7.65 x 0.85 = n
4. 36.20 x 0.05 = n
5. 31.85 x 0.91 = n​

Answers

If i were you, I would just plug these into my calculator.
1. 1.587
2. 11.469
3. 6.503
4. 1.81
5. 28.984

Answer:

1.5972

11.4688

6.5025

1.81

28.9835

Step-by-step explanation:

yan po hehe

4x-y=3 how can I solve this​

Answers

Rewrite in Implicit form, Move the constant to the left, by adding its opposite to both sides.

Step 1: 4x-y-3=3-3

The sum of the two opposites equals 0.

Step 2: 4x-y-3=0

Solution: 4x-y-3=0

Anna invented a robot. The robot's name is David. David can go a maximum speed of 4 mph. At that rate, how long would it take David to go 9 miles?​

Answers

Answer:

At maximum speed the robot can travel 9 miles in 2hrs and 15 min

Step-by-step explanation:

What is the equation, in slope-intercept form, of the line parallel to -5x + y = 2 that passes through the point with coordinates (-2, 1)?

Answers

Answer:

y = 5x + 11

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

- 5x + y = 2 ( add 5x to both sides )

y = 5x + 2 ← in slope- intercept form

with slope m = 5

Parallel lines have equal slopes, then

y = 5x + c ← is the partial equation

To find c substitute (- 2, 1) into the partial equation

1 = - 10 + c ⇒ c = 1 + 10 = 11

y = 5x + 11 ← equation of parallel line

PLEASE HELP?
let g be the function given by g (x) = 3x^4 - 8x^3. At what value of x on the closed interval [ -2,2 ] does g have an absolute maximum

Answers

Answer:

When we have a function g(x)

We will have a maximum at x when:

g'(x) = 0

g''(x) < 0.

Now we start with:

g(x) = 3*x^4 - 8*x^3

The first derivation is:

g'(x) = 4*3*x^3 - 3*8*x^2

g'(x) = 12*x^3 - 24*x^2

We can rewrite this as:

g'(x) = x^2*(12*x - 24)

Now we want to solve:

g'(x) = 0 =  x^2*(12*x - 24)

We have one trivial solution, that is when x = 0.

The other solution will be when the term inside of the parentheses is equal to zero.

Then we need to solve:

12*x - 24 = 0

12*x = 24

x = 24/12 = 2

Then g'(x) is equal to zero for x = 0, and x = 2.

Notice that both of these points are included in the interval [ -2,2 ]

Now we need to look at the second derivative of g(x):

g''(x) = 3*12*x^2 - 2*24*x

g''(x) = 36*x^2 - 48*x

Ok, now we need to evaluate this in the two roots we found before:

if x = 0:

g''(0) = 36*0^2 - 48*0 = 0

g''(0) = 0

Then we do not have a maximum at x = 0, this is a point of inflection.

if x = 2:

g''(2) = 36*(2^2) - 48*2 = 48

then:

g''(2) > 0

This is an absolute minimum.

Now let's look only at the interval [ -2,2 ]

We know that:

g''(0) =  0

g''(2) > 0

Then at some point, we should have g''(x) < 0 in our interval.

We need to find the first point such that happens, so let's try with the lower limit of the interval but with the first derivation, if g'(x) < 0, this means that the function is decreasing from that point on, then that point will be a maximum in our interval.

x = -2

g'(-2) = (-2)^2*(12*-2 - 24) = -192

And if we look at the function:

g'(x) = x^2*(12*x - 24)

We can easily see that it is negative unitl x = 0, and then it keeps being negative until x = 2.

So in the interval  [ -2,2 ], the function g'(x) is always negative or zero, this means that in the interval  [ -2,2 ], the function g(x) is always decreasing or constant.

Then the absolute maximum of g(x) in the interval  [ -2,2 ]  will be  x = -2

this means that:

g(-2) ≥ g(x) for all x ∈  [ -2,2 ]

Rover A: y= 1.3x - 4
Rover B: 3y = 3.9x - 12

What conclusion can you make about the system of equations?

A. The system has exactly one solution.

B. The system has infinitely many solutions.

C. The system has no solution.

Answers

Answer:

I think it is A

Step-by-step explanation:

because there is only 1 slope which is 3 and the y intercept is 4

what is the value of y for -3x+2y=-10

Answers

Answer:

[tex]x=3.33333\\y=-5[/tex]

CAN U GIMME BRAIN PLZ!

6. If F(x) = -6(2x2 + 5x) - 9, what is the value of F(-4)?

Answers

Answer:

-81

Step-by-step explanation:

-6(2x² + 5x) - 9

substitute -4 for 'x'

-6[2(-4)² + 5(-4)] - 9

-6[2(16) + (-20) - 9]

-6(32 - 20) - 9

-6(12) - 9

-72 - 9 = -81

what is an equation of the line that passes through (0,8) and (4.0)?
A y= 2x+8
B y= 2x+4
C y=-2x+4
D y=-2 x+8

Answers

Answer:

Step-by-step explanation:

help me fast smart people please haha lol

Answers

Answer:

1280 cubic

Step-by-step explanation:

length x width x height

Answer:

B

Step-by-step explanation: Volume=lwh

10*8*16=1280

Answer: B

Help me with this question ASAP please

Answers

Answer:

1) 14°

2)117°

3) 78°

4) 66°

5) 64°

6) 28°

7)35°

8) 48°

Step-by-step explanation:

just subtract both angles from 180 because all triangle's angles always add up to 180°

1. ) 14

2.) 117

3.) 78

4.) 66

5.) 64

6.) 34

7.) 45

8.) 48

the person before me i dont think dod did their math right bc some of their math answers are wrong on 5 through 8 i think it is.

NOW HERE'S HOW TO DO IT WITH EXAMPLES OF YOUR QUESTIONS

in triangles all angles added up cant be more than 180 degrees . basically you take 180 and subtract the known angles and what is left over is the unknown angle

example question 1.) 180-112-54=14

question 2.) 180-38-25=117. i hope this helps. man i should have typed faster id be first. owell goodluck

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