Evaluate 2x(2) - 3x + 2 for x = -5

Answers

Answer 1

Answer:

Step-by-step explanation:

substitution

2x(2)-3x+2

2(-5)(2)-3(-5)+2

-10(2)+15+2

-20+17

-3


Related Questions

PLEASE HELP ill give brainlist to the first right answer

Answers

Answer:

how do i say this uh...

Step-by-step explanation:

i wanna say 3 up and 4 across, then alighn. then 2 up and 1 across there.

Which systems of equations intersect at point A in this graph?

Answers

Y = 4 x - 9

y = - 3 x - 5

I hope this will help you

i looked this up and this is what i got

Choose the missing step in the given solution to the inequality -2x - 14> -4 + 3x. (1 point)
-2x-14>-4+3x
-5x - 14 >-4
X<-2
O-5x< 10
O-5x>-18
O-5x > 18
O-5x > 10
10. (01.04 MC)

Answers

Answer:

-5x > 10

Step-by-step explanation:

1. We know that when -14 thrown to the right hand side, it will turn to +14

2. +14 -4 = +10

3. Left hand side will remain -5x

4. Hence, -5x > 10

5. and the equation divided by -5, the > sign will change to <

6. x< -2

7. Since you're finding the missing step so it's -5x > 10

Answer in about 20 minutes please.
Grant went on an 8-week diet. If he lost at least 1.5 pounds each week, which inequality gives his total weight loss?

A. 8p (less than or equal to sign)-1.5
B. 8p (greater than or equal to sign)-1.5
C. p/8 (less than or equal to sign)-1.5
D. p/8 (greater than or equal to sign)-1.5




Answers

The answer for this answer would be A because

I need help!

And if you can explain that would be good!

Answers

Answer:

meema, papa, and then auntie jo

Step-by-step explanation:

you need to find the slope of each of them and then determine which one is the fastest and which one is the slowest.

meema: 48-24/4-2 = 4/2 = 2

papa: 40-24/5-3 = 16/2 = 8

auntie jo: 45-18/5-2 = 27/3 = 9

im in algebra two so you can trust my answer. happy holidays and stay safe!

The answers are written but I am not sure how they got them. Can someone please explain it to me? Thank you! (Worth 50 points :))

Answers

Answer:

x = 2.4

I'm not sure how the answer is 4.5 but I'm pretty sure this is right unless I'm missing something

Step-by-step explanation:

So we need to find how much shorter is the short line compared to the longer one. Basically we need a scale factor, for this we can use the side lengths already given to us, 10 and 15. So u can choose either enlarge the short line or shorten the longer one.

If u want to enlarge the short line then do 15/10 which is 3/2 which u will then multiply the shorter line's equation with it, if u want to shorten the longer line then do 10/15 which is 2/3 and multiply the longer lines equation with it.

I'll be using the 3/2 one cause why not:

3/2(x + 6) = 4x + 3

3/2x + 18/2 = 4x + 3

multiply the entire equation with 2 to make 3/2 no longer a fraction

(3/2x + 18/2 = 4x + 3)2

6/2x + 18 = 8x + 6

3x + 18 = 8x + 6

subtract 18 from both sides

3x = 8x - 12

subtract 8x from both sides

-5x = - 12

divide -5 from both sides

x = 2.4

U can input x into the equation to check:

3/2(2.4 + 6) = 4(2.4) + 3

12.6 = 12.6, it's right

Triangles ABC and DEF are similar.
Find the length of segment AC.

Answers

Answer:

4.6 I think

Step-by-step explanation:

Select the correct answer. A model rocket was launched from the top of a building. The rocket's approximate height can be modeled by the quadratic equation h = -4.9t2 + 53.9t + 127.4, where h is the rocket's height, in meters, after t seconds. When factored, this equation is h = -4.9(t - 13)(t + 2). What is a reasonable time for it to take the rocket to land on the ground? Answer A 11 seconds Answer B 13 seconds Answer C 2 seconds Answer D 15 seconds

Answers

Answer:

13 seconds.

Step-by-step explanation:

Given

[tex]h = -4.9(t - 13)(t + 2).[/tex]

Required

Determine a reasonable solution for t

To do this, we equate h to 0.

[tex]h = -4.9(t - 13)(t + 2).[/tex] becomes

[tex]0 = -4.9(t - 13)(t + 2).[/tex]

Divide through by -4.9

[tex]0 = (t - 13)(t + 2).[/tex]

Reorder the expression

[tex](t - 13)(t + 2) = 0.[/tex]

Split

[tex]t-13 = 0[/tex] or [tex]t + 2 = 0[/tex]

This gives:

[tex]t = 13[/tex] or [tex]t = -2[/tex]

But time can't be negative, So:

[tex]t = 13[/tex]

determine the rate of change for the graph​

Answers

Answer:

D) 1.5 centimeters per night

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (0, 30)

Point (20, 60)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{60-30}{20-0}[/tex]Subtract:                       [tex]m=\frac{30}{20}[/tex]Simplify:                        [tex]m=\frac{3}{2}[/tex]Divide:                          [tex]m=1.5[/tex]

Terrance's homework grade was a 72, his project grade was an 80 and his exam grade was an 82.
Homework is worth 10% of the final grade, the project was worth 50%, and the exam was worth 40%.
What was Terrance's final grade?

Answers

Answer:

80%

Step-by-step explanation:

home work = 10%

project grade = 50%

final exam = 40%

so

homework  = 72

100=10

72=?      cross multiply and get 7.2%

project grade = 80

100 = 50

80 = ?   cross multiply and get 40%

final exam = 82

100 = 40

82 = ?     cross multiply and get 32.8%

then add them altogether getting a total of 80%.

Collin is collecting rocks for a science project. So far, he has collected 36 rocks, which is 90% of the total he needs. How many total rocks does Collin need for his science project?

Answers

Answer:

40 total rocks

Step-by-step explanation:

100 * 36 / 90 = 40

Answer:

he needs 4 more

Step-by-step explanation:

At what point does the line y = -1/3x + 5 cross the x-axis? Write your answer as an ordered pair. (x, y)

Answers

0=-1/3x+5
1/3x=5
x=15
(15,0)

NEED HELP WILL GIVE YOU EXTRA POINTS BY BRAINLIEST

Answers

Answer:

(-2,4)

Step-by-step explanation:

When you reflect over y = x, the x and y change places.  F' is at (4,-2) .

Answer: (-2, 4)

Step-by-step explanation:

Swap x and y coordinates since you're reflecting over y=x.

(4, -2)==>(-2, 4) ==> The slope between these two points should be -1(y=-x). That way, you know the graph is being reflected over y=x.

m=(y2-y1)/(x2-x1)

m=(4-(-2))/(-2-4)

m=(4+2)/(-6)

m=6/(-6)

m=-1 ==> These two points are confirmed to be reflected over the line y=x.

Old coordinates: (-2, 4)

What is the common ratio of this sequence: 4, 20, 100...?

pls

Answers

Step-by-step explanation:

5 is the answer

..................

Help ,me !!!!!!!!!!!!!!!1

Answers

Answer: b

Step-by-step explanation:

Because it says below zero and b is below zero

TR = 3x + 5, and RA = x + 17. Find the value of x.

Answers

Answer: x=6

Step-by-step explanation:

TR=RA since TR and RA are congruent

3x+5=x+17

3x+5-5=x+17-5

3x=x+12

3x-x=x-x+12

2x=12

2x/2=12/2

x=6

-3х - y + 4 = 28
2х - 3y+ 2 = 2
3х - 2y + 2 = 2
Solve each system by elimination

Answers

Answer:

x=-72/11 y=-48/11

Step-by-step explanation:

yw !

1. A box of fruit has 12 plums and 15 bananas. The
cost of each plum is p and the cost of each banana is
25 cents. What expression gives the total cost for all
of the fruit in the box?

Answers

Answer:

12p x (15 x 25) I might not be correct :')

Answer:

12p+15x0.25

Step-by-step explanation:

What is the answer to the problem: 1.234x139.893
and 674.983x278.475

Answers

Step-by-step explanation:

172.627962

187965.890925

Answer:

1.234 × 139.893 = 172.62796

674.983 × 278.475 = 187965.890925

Hope this helps! :)

55 is 40% of what number?
a. 137.5
b. 110
c. 72.7
d. 13.8

Answers

Answer:

Answer Is A

Step-by-step explanation:

Just trust me

solve the inequality |4x + 4| < 12

Answers

It’s 8x  unless x has a known value




Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The Smiths are sending out a batch of holiday cards. Emily signed of the cards. Then Josh signed of the remaining cards. Tatiana signed 20% of what Josh had left. If there were 75 cards in all, how many cards are left to be signed? There are cards yet to be signed.

Answers

Answer:

You will get 75 cards

Step-by-step explanation:

The answer is 32

Emily signed 2/5 so 75 divided by 5 is 15

15x2 is 30

75-30=45

45 divided by 1/9 is 5

30+5=35

so then 45-5=40

20% of 40 is 8

30+5+8 = 43

75-43=32

What is 4x3.14x9x9x9

Answers

Answer:

9156.24

Step-by-step explanation:

calculator

Answer:

its 9156.24

Step-by-step explanation:

What is -2 (3x + 12y - 17x - 16y + 4) simplified?

Answers

Answer:

28x + 8y -8 is the answer for the question

Answer:

28x + 8y + 2

Step-by-step explanation:

hope it helps

what did he do wrong

Answers

Answer:

He did nothing wrong in this problem.

Step-by-step explanation:

The cost to rent a rug cleaner is $25 plus $15 per hour at Floors, Inc. At Rugs R Clean the rug cleaner costs $45 plus $7 per hour. Which inequality can be used to show how many hours you need to rent the rug cleaner so that Floors, Inc.'s charges will be same the charges at Rugs R Clean?

Answers

Answer:

25 + 15x < 45 + 7x

Step-by-step explanation:

Given:

Floors, Inc. Fixed charges = $25

Floors, Inc. Variable charges = $15 per hour

R rug clean Fixed charges = $45

R rug Variable charges = $7 per hour

Computation:

Assume number of hour = x

Floors, Inc. total cost = 25 + 15x

R rug  total cost = 45 + 7x

So,

25 + 15x < 45 + 7x

Find the 101st term: 0, 0.1, 0.2, 0.3,

Answers

Answer:

the correct answer is 10.1 on the goggle forms it is 10

Step-by-step explanation:

0.1 multiplied by 101 is 10.1

If p and a vary inversely and p is 26 when q is 5, determine q when p is equal to 10

Answers

Answer: q = 13

because p and q are inverse

=>  26/10 = q/5

⇔ q = 26/10.5

⇔ q = 13

Step-by-step explanation:

What is the exact value of tan(195°)?

Answers

Given:

The value is tan(195°).

To find:

The exact value of tan(195°).

Solution:

We have,

[tex]\tan (195^\circ)=\tan (180^\circ+15^\circ)[/tex]

[tex]\tan (195^\circ)=\tan (15^\circ)[/tex]      [tex][\because \tan (180^\circ-\theta)=\tan \theta][/tex]

It can be written as

[tex]\tan (195^\circ)=\tan (45^\circ-30^\circ)[/tex]

[tex]\tan (195^\circ)=\dfrac{\tan (45^\circ)-\tan (30^\circ)}{1+\tan (45^\circ)\tan (30^\circ)}[/tex]      [tex][\because \tan (A-B)=\dfrac{\tan A-\tan B}{1+\tan A\tan B}][/tex]

[tex]\tan (195^\circ)=\dfrac{1-\dfrac{1}{\sqrt{3}}}{1+(1)(\dfrac{1}{\sqrt{3}})}[/tex]

[tex]\tan (195^\circ)=\dfrac{\dfrac{\sqrt{3}-1}{\sqrt{3}}}{1+\dfrac{1}{\sqrt{3}}}[/tex]

[tex]\tan (195^\circ)=\dfrac{\dfrac{\sqrt{3}-1}{\sqrt{3}}}{\dfrac{\sqrt{3}+1}{\sqrt{3}}}[/tex]

[tex]\tan (195^\circ)=\dfrac{\sqrt{3}-1}{\sqrt{3}+1}[/tex]

Therefore, the exact value of tan(195°) is [tex]\dfrac{\sqrt{3}-1}{\sqrt{3}+1}[/tex].

Answer:

It's C

Step-by-step explanation:

please help me fill out the blanks in the bottom!

Answers

Answer:

2: 67

3:67

4: 113

Step-by-step explanation:

Answer: 67 degrees, 67 degrees, 113 degrees

Step-by-step explanation:

Angle 2: 180-113= 67 degrees

Angle 3: angle 3=angle 2

67 degrees

Angle 4: angle 4=angle 1

113 degrees

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