8w2 + 2w - 3
What is the value of the expression below when w = 2?

Answers

Answer 1

Answer:

33

Step-by-step explanation:

8 x 2^2 + 4 - 3= 8x4+1=33

Answer 2

Answer:

33

Step-by-step explanation:

8w2 + 2w - 3

w = 2

substitute w for 2:

(8 x 2 x 2) + (2 x 2) - 3

solve:

32 + 4 - 3

33


Related Questions

Let c and d stand for two different rational numbers. If |c| < |d| , then what else must
be true?
a: c is closer to 0 then d is
b: c is less than d
c: on a number line, c is to the left of d
d: the opposite of c is greater than the opposite of d

Answers

Answer:

c: on a number line, c is to the left of d

help please I have too many points and I also need help on my math

Answers

Answer:

Complementary

x = 55

Step-by-step explanation:

Complementary angles add up to 90°, while supplementary angles add up to 180°.

In this situation, the two angles add up to 90° (the little box means that an angle is a 90° angle) So, the angles are complementary.

Now, we can write this equation.

x + x - 20 = 90

Simplify.

2x - 20 = 90

2x = 110

x = 55

Just in case, let's check the answer.

Substitute x = 55 into (x + x - 20 = 90)

55 + 55 - 20 = 90

110 - 20 = 90

90 = 90

This is true, so x = 55 is correct.

I hope this helps! Feel free to ask any questions!

why is no one answering me me??? :(​

Answers

Answer:

hewo

Step-by-step explanation:

i dont know- probably bc they don't want to

WHAT IS EQUIVALENT TO THE INEQUALITY 2X>6?

Answers

Answer:

x > 3

Step-by-step explanation:

Simply isolate the inequality to get a equivalent inequality. Treat the sign > like an equal sign, what you do to one side, you do to the other side of the inequality.

Isolate the variable, x. Divide 2 from both sides of the equation:

(2x)/2 > (6)/2

x > 6/2

x > 3

x > 3 is your equivalent inequality.

~

HELP QUICK I WILL GIVE YOU THE CROWN

Answers

Answer:

G

Step-by-step explanation:

5+8+10+7=30

10/30=1/3

Answer:

G. or H. one of em

Step-by-step explanation:

Write a complete two-column proof for following information.

Given: AB = 3y - 1, BC = 7y, AC = 29
Prove: AB = 8

Answers

y=3
Because:
AB = 3*3-1 = 8; BC = 7*3 = 21; AC = AB+BC = 29

Solve for z:
-0.25z = -1.25

Answers

Answer:

the answer is 5

Step-by-step explanation:

-0.25/(-0.25)=-1.25/(-0.25)

z=5

Answer:

5

Step-by-step explanation:

15. Marley gets on an elevator on the 30th floor of a building. She goes up 6 floors to pick up a package then goes down 14 floors for a meeting. Write and simplify an expression to show what floor Marley is now on pls help ​

Answers

Step-by-step explanation:

The initial level is 30.

let the upward travel be +X and downward travel be -Y.

so the expression for her current level be ,

30+X-Y = 30+6-14= 22.

22 is her current level.

Sophia’s dad paid $18.70 for 8.5 gallons of gas at the super gas mart. What is the cost of one gallon of gas and how much would it cost to also fill a 5 gallon container for his lawnmower

Answers

Answer:

2.20$

11$

Step-by-step explanation:

18.70/8.5=2.2

2.2= 2.20$

2.2x5=11

11=11$

2 3/4 +1 1/4+3 1/2 

Answers

I believe the answer is 7 and 1/2 plz let me know if I’m wrong
Brainliest would be nice

Press the hotspot next to the name of the learner who wrote an incorrect expression.

Answers

Answer:

Luis

Step-by-step explanation:

Solve for X and round to the nearest hundredth

Answers

Answer:

Pretty sure it's 20.24.

Step-by-step explanation:

Since you know the side adjacent to the reference angle and you want to find the side opposite, you're going to need to use tangent, which is opp/adj.

tan(39) = [tex]\frac{x}{25}[/tex]

Find the tangent of 39...

0.8097 is the approximate value. So...

0.8097 = [tex]\frac{x}{25}[/tex]

Now, switch the sides to make it easier.

[tex]\frac{x}{25}[/tex] = 0.8097

Multiply both sides by 25.

x = 20.24

Helppp me pleaseee due tonight

Answers

Answer:

2.25 x 3 = 6.75

Step-by-step explanation:

Find the distance between A and B ​

Answers

Answer:

27

Step-by-step explanation:

You can easily find it by counting how much line are between point and and point B

there are 27 lines (including the line on point B)

Which expression is equivalent to 10f - 5f + 8 + 6g + 4? I’ll mark Brainliest :D

Answers

Answer:

The answer is 5f + 6g +12

Step-by-step explanation:

Answer:

5f + 6g +12

Step-by-step explanation:

Simplify the expression.

3. The dollar amount d that Megan earns varies directly with the number of
hours h that she works. In her last paycheck, she earned $148.50 working
18 hours. If her next paycheck is $107.25, how many hours did she work?

Answers

Answer:

13 hours

Step-by-step explanation:

148.5/18=8.25

107.25/8.25=13

I am stugling with algebra (because of zoom classes) and have multiple questions, please answer as many as you can. Thank you!
3x + 7 = 4x X=
x + 2 + 2x = x + 10 X=
x + 3x = x + x + 10 X=
2x + 3 + 3x = x + 11 X=
(oh and PLEASE explain this to me!)

Answers

9514 1404 393

Answer:

x = 7x = 4x = 5x = 2

Step-by-step explanation:

The general steps are ...

look at what you haverewrite the equation so the variable terms are on one side and the constant terms are on the other side of the equal sign; collect termsdivide by the coefficient of the variable

It is generally convenient to put the variable terms on the side of the equation having the largest (most positive) variable term. You do the rearranging by subtracting the terms you don't want. Any operation is performed on both sides of the equation.

__

1) 3x + 7 = 4x

We observe the largest x-term is on the right, and the only constant term is on the left. We can subtract the x-term 3x to eliminate it from the left side

  3x +7 -3x = 4x -3x

Combining like terms gives ...

  7 = x . . . . . this is the solution

__

2) x +2 +2x = x + 10

We observe x-terms and constants on both sides of the equation. First of all, we will combine like terms.

  3x +2 = x +10

The largest x-term is on the left, so we choose to subtract x (the x-term on the right)

  3x -x +2 = x -x +10

  2x +2 = 10

We don't want the constant on the left, so we subtract 2.

  2x +2 -2 = 10 -2

  2x = 8 . . . . . . . . . . combine like terms

Now, we divide by the coefficient of x.

  2x/2 = 8/2

  x = 4 . . . . . . the solution

__

3) x +3x = x + x + 10

  4x = 2x +10 . . . . . . . combine like terms

  2x = 10 . . . . . . . . . . . subtract 2x

  x = 5 . . . . . . . . . . . . . divide by 2

__

4) 2x +3 + 3x = x + 11

  5x +3 = x +11 . . . . . . . . combine like terms

  4x +3 = 11 . . . . . . . . . . . subtract x

  4x = 8 . . . . . . . . . . . . . . subtract 3

  x = 2 . . . . . . . . . . . . . . .divide by 4

_____

Learn to identify and combine like terms. Use addition or subtraction to eliminate terms you don't want. Use multiplication or division to eliminate coefficients you don't want. Whatever you do to one side of the equation must also be done to the other side of the equation. (In the above, we use "subtract ..." to mean "subtract ... from both sides of the equation," for example.)

An unknown number y is 10 more than an unknown number x. The number y is also x less than 3. The equations to find x and y are shown below. y = x + 10 y = −x + 3 Which of the following statements is a correct step to find x and y? a Add the equations to eliminate x. b Multiply the equations to eliminate y. c Write the points where the graphs of the equations intersect the x-axis. d Write the points where the graphs of the equations intersect the y-axis.

Answers

Answer:

C should be the right one

Answer:

Write the points where the graphs of the equations intersect the x-axis

Step-by-step explanation:

An unknown number y is 10 more than an unknown number x. The number y is also x less than 3

A state university locks in costs for a student once a student starts attending the university. The total cost is $23,500. A student has the following help in covering the costs of school. An academic scholarship of $8,200. Other scholarships and grants of $7,400. Grandparents pay $1,000. What is the amount that the student will need to save every month in order to pay off the remaining costs in 10 months?

Answers

Answer:

Answer is 690 every month

Step-by-step explanation:

The total cost is $23,500

Scholarship:8200$

2nd scholarship:7400$

Grandparents: 1000$

23,500-8,200-7400-1000=6900÷10=690

He will have to save up 690 every month for 10 months

Help please if you know the answer

Answers

Answer:

10x - 1

Step-by-step explanation:

Perimeter = a + b + c

P = 5x - 2 + 3x + 2 + 2x - 1

combinelike terms:

P = 10x - 1

Pls help me I only have 2 minutes left winner gets brainliest
In what year did the 20 years of peace that the Rwandan government was able to maintain begin?
1962

1972

1982

1992

Answers

Answer: B

Step-by-step explanation:

What is the length of AC

Answers

Since we don’t know the height of base or angles. We do know it is isosceles triangle.
x+4=3x-8
x-3x= -8-4
-2x= -12 multiply both sides by -1
2x=12
x=12/2
x=6
x+4=6+4=10
3x-8=3•6-8=18-8=10
Base equals x. x=10
AC=10

Please help meeeeee thanksss

Answers

Answer:

Step-by-step explanation:

it's 3     hmmm it tells you rise over run.. just about where they are asking for the answer.. what do you not get about the question?  

how many two digits divisible by 6

Answers

Answer:

The first two digit number divisible by 6 is 12 and The last two digit divisible by 6 is 96 Let a=12, d=6, an=96

Step-by-step explanation:

Answer:

15.

There are 15 2 digit numbers which are divisible by 6.

Meg needs to plot these ordered pairs on a scatterplot:
(84, 63), (48, 14), (70, 22), (98, 34), (41, 8)
What are appropriate x-axis and y-axis unit scales?

Answers

Answer:

I think its c but i dont know

Step-by-step explanation:

24 boys started a cycle racc and 18 of them
ended the race. What percentage of boys
ended the race?
ation owned​

Answers

75% ended the race
25-18=6
6 goes into 24 4 times so it is 25% that did not finish
100%-25%=75%
So 75% finished the race

Solve the Equation 4x^2-5x-6=0

Answers

Answer: = 2

Step-by-step explanation: Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

The arithmetic sequence ; is defined by the a i formula : a 1 =-4910 a i =a i-1 +8 Find the sum of the first 575 terms in the sequence.

Answers

Answer:

- 1,503,050

Step-by-step explanation:

Given that the sum of arithmetic sequence =

n/2[2a + (n-1)d]

Where;

n = 575

a = -4910

d = a i - a i-1  = 8

Substituting values;

575/2 [2(-4910) + (575 -1) 8]

575/2  [(-9820) + 4592]

=  - 1,503,050

please help
Find the surface area of the composite solid.

Answers

Surface Area: 140 ft

You find the areas of the sides and bottom, base x height, and the areas of the triangles, 1/2 base x height, then add them all together

What is the answer using substitution X+(x-178)=676

Answers

what is x equivalent to??
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