Mathematics High School

3.9-21 helpp please kikiki

Answers

Answer 1

Answer:

3.9-21=-17.1

Step-by-step explanation:

3.9-21

3.9+-21

=-17.1

Answer 2

-17.1 . Just do 21-3.9 then put a negative in front of it

Related Questions

Help i really need some help for this!!!! Complete the equation so that it has infinitely many solutions.

13(3−z)

Answers

Answer:

13(3 - z) = 13(3 - z)

13(3 - z) = 39 - 13z

Step-by-step explanation:

To make the equation have infinitely many solutions, when you simplify, the equation will become z = z

To make this happen, the equation has to be the same on either side of the equal sign. Here are the two options :

13(3 - z) = 13(3 - z)

13(3 - z) = 39 - 13z

Which theorem or postulate justifies this statement? angle6 cong angle13

A. vertical angles theorem

B. alternate interior angles theorem

C. alternate exterior angles theorem

D. corresponding angles postulate

E. linear pair postulate

Answers

Answer:

C. Alternate Exterior Angles Theorem

Step-by-step explanation:

I took the test

The corresponding angles postulate and the vertical angles theorem are proving ∠6 = ∠13. Therefore, options B and D are correct answer.

From the given figure, lines GN and FH are intersecting by the line segments KL and JM.

What are angles of parallel lines?

Angles in parallel lines are angles that are created when two parallel lines are intersected by another line called a transversal.

From the given figure, we can see that

∠6 = ∠10 (Corresponding angles are congruent)

∠10 = ∠13 (Vertical angles are congruent)

Now, ∠6 = ∠10 = ∠13

The corresponding angles postulate and the vertical angles theorem are proving ∠6 = ∠13. Therefore, options B and D are correct answer.

To learn more about the vertical angles theorem visit:

https://brainly.com/question/16987080.

#SPJ5

Which of the following equations have no solution? Check all that apply.
6x + 1 = 3(2x – 4)
2 – 5x = 7x – 12
4(3 – x) = 2(6 – 2x)
5(x + 2) = 2(x – 4)
–4(x + 3) = 4(–x – 1)

Answers

Answer:

1 and 5

Step-by-step explanation:

1. 6x + 1 = 3(2x - 4)

6x + 1 = 6x - 12

6x + 13 = 6x

-6x -6x

13 = 0x

no solution

2. 2-5x = 7x - 12

2 = 12x - 12

14 = 12x

1 1/6 = x

3. 4(3 - x) = 2(6 - 2x)

12 - 4x = 12 -4x

-4x = -4x

x = ∞

4. 5(x + 2) = 2(x - 4)

5x + 10 = 2x - 8

3x + 10 = -8

3x= -18

x = -6

5. -4(x + 3) = 4( -x - 1)

-4x -12 = -4x -4

-4x - 8 = -4x

-8 = 0x

no solution

Answer:

–4(x + 3) = 4(–x – 1) and 6x + 1 = 3(2x – 4)

Step-by-step explanation:

I copied the other dude

16r6sc/8r2s6 Which expression is equivalent to the given expression? Assume the denominator does not equal zero. A. B. C. D.

Answers

Answer:

Step-by-step explanation:

The required expression is equivalent to the given expression is C.

An equivalent expression for 16r6sc/8r2s6 is to determine.

What is the Ratio?

The ratio can be defined as the comparison of the fraction of one quantity towards others. e.g.- water in milk.
Numerator = it is the term positioned above in the ratio
Denominator = it is the term positioned below in the ratio

Here,
= 16r6sc/8r2s6
Factored 16 into 8 * 2
= 8*2r6sc/8r2s6
Rearrange the numerator in order to simplify relative to denominator.
=8r2s6c/8r2s6
8r2s6 are common in the denominator and the numerator of the ratio denominator does not equal zero so it implies
=c/1

Thus the required expression is equivalent to the given expression is C.

Learn more about Ratio here:

brainly.com/question/13419413

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Will Be Marking Brainliest!!!
Johanna has a tricycle. The following graph shows the distance she pedals over time.

Answers

90 per minute i wish this helps

Answer:

A. 90 ft/min

Explanation:

Each minute seems to be going up by 90 minutes (y=90x+0)

This is what it looks like:

(0,0)

(1,90)

(2,180)

(3,270)

(4,360)

(5,450)

And I placed those pints on a graph...

(This is also Linear)

Find the sum or difference of the polynomials.

(7x2 + 5x −3) +(5x2 −9x +6)

Answers

Answer:

12x2−4x+3

Answer:

$836

Step-by-step explanation:

Add $75 and $89 together to get $164

Subtract $164 from $1,000.

1000 - 164 = 836

$836

Hope I helped :)

Please consider Brainliest :)

Please help quickly

Answers

Let's see what to do buddy...

_________________________________ Step (1)

First we must find the measure of x

[tex](3x - 5) + (x + 1) = 180[/tex]

[tex]4x - 4 = 180[/tex]

Both sides plus 4

[tex]4x = 184[/tex]

Divided both sides by 4

[tex]x = \frac{184}{4} \\ [/tex]

[tex]x = 46[/tex]

_________________________________

Step (2)

Now we must find the RQS Angle measure :

Angle ( RQS ) = 46 + 1 = 47

_________________________________

Step (3)

QT bisects RQS ;

So the resulting angles are :

[tex] \frac{47}{2} = 23.5 \\ [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

What is the x-intercept of the slope of -2 and a y-intercept of 0, 6

Answers

Answer:

x- intercept = 3

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 )

Here m = - 2 and c = 6 , thus

y = - 2x + 6 ← is the equation of the line

To find the x- intercept, let y = 0 in the equation and solve for x

- 2x + 6 = 0 ( subtract 6 from both sides )

- 2x = - 6 ( divide both sides by - 2 )

x = 3 ← x- intercept or (3, 0 )

X-incterpret=3 is the answer you’re look for

Help!!! What is the equation of the following function? Show any work.

Answers

Answer:

[tex]y=-3(x+2)^2-3[/tex]

Step-by-step explanation:

Equation of the Quadratic Function

The vertex form of the quadratic function has the following equation:

[tex]y=a(x-h)^2+k[/tex]

Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.

The graph provided in the question, assumed as a parabola, has two clear points:

The vertex, located at (-2,-3)

The point (-1,-6)

Substituting the coordinates of the vertex, the equation of the function is:

[tex]y=a(x-(-2))^2-3[/tex]

[tex]y=a(x+2)^2-3[/tex]

The value of a will be determined by using the other point (-1,-6):

[tex]-6=a(-1+2)^2-3[/tex]

Operating:

[tex]-6=a(1)-3[/tex]

Solving:

a=-3

The equation of the graph is:

[tex]\boxed{y=-3(x+2)^2-3}[/tex]

Can anyone do 4.503 times 8.04

Answers

Answer:

The answer is 36.20 :)

Step-by-step explanation:

Answer: 36.20412

Step-by-step explanation: it’s easy when you write it down on paper and then times it

Find the mean of:
1.8, 1.7, 1.3, 1.1, 1.2, 1.6, 1.8

Answers

Answer:

1.5 is your answer

Answer:

1.5

Step-by-step explanation:

Write an equation and interpret the y-intercept.
You need $125 to buy an MP3 player. Your allowance is $5 per week and you earn $20 per lawn mowed
Write an equation that represents your weekly income in dollars for x lawns mowed. Interpret the y intercept . How many lawns do you need to mow to earn enough money in one week to buy the MP3 player?

Answers

Answer:

Answer in explanation

Step-by-step explanation:

The equation of a straight line can be represented in the form;

y = mx + c

where m is slope and c is y-intercept

In this particular case

y = 20x + 5

y is the weekly income, x is the number of lawns mowed

The y-intercept 5 is the amount earned in a week given they no lawn was mowed

In a case where y = 125

125 = 20x + 5

20x = 125-5

20x = 120

45 x 10 = 450

Answer:

450 feet

Step-by-step explanation:

45 times 10 = 450

Can you please tell me the four types of algebraic expressions?

Answers

Answer:

MonomialPolynomialBinomialTrinomialMultinomial (these are the five types of algebraic expressions)

Which of the following equations represent linear function?

Answers

The x axis shows how many hours have passed and the y axis shows how many inches it is so on 1 hr it had 2 inches and on 2 hrs it had 4 inches

wat is 320,000,000 written in scientific notation

Answers

Answer:

3.2 x 108

Step-by-step explanation:

it just is lol. also the 8 is to the power of ten

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