Evaluate the expression 2x^2 - x, when x = -3.

Answer:

$18

Step-by-step explanation:

6/10 × $30 = $18

______

Answer:

I have no clue,

Step-by-step explanation:

I just wanted the points

Answer:

12

Step-by-step explanation:

Answer:

12 boys

Step-by-step explanation:

4/(4+6) × 30

= 4/10 × 30

= 12

[tex] \huge\mathcal\colorbox{red}{\color{pink}{ᶛɲƧཡэʀ}}[/tex]

x = 9

y = -3

Answer:600

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

Prime numbers have to be only divisible by one and themselves (2 numbers), but one is,[tex]1*1[/tex] so it is only divisible by one number, thus it is not prime.

Answer:

64 inches or 64 pulgadas

Step-by-step explanation:

The formula for the perimeter of a rhombus is given as:

P = 4a

Where a = side length of the rhombus

From the above question, side length of the rhombus = 16 inches

Hence, Perimeter of the rhombus = 4 × 16 inches

= 64 inches

La fórmula para el perímetro de un rombo se da como:

P = 4a

Donde a = longitud del lado del rombo

De la pregunta anterior, la longitud del lado del rombo = 16 pulgadas

Por lo tanto, perímetro del rombo = 4 × 16 pulgadas

= 64 pulgadas

Step-by-step explanation:

5x-8x+12=24

-3x+12=24

-3x+12-12=24-12

-3x=12

-3x/3=12/-3

Answer is x = 12 :)

Operations you're supposed to do in order to solve this equation are:

1. Combine like terms

2. Subtract 12 from both sides

3. Simplify

4. Divide both sides of the equation by the same term

5. Simplify.

(Demonstration is on the file I uploaded) <3

Answer:

x = 17

y = 8

QPR = 35º

QRP = 60º

Step-by-step explanation:

2x + 1 = x + 18

Subtract x from both sides

x + 1 = 18

Subtract 1 from both sides

x = 17

QPR = 2x + 1

QPR = 2(17) + 1

QPR = 35º

-------------------------------

8y - 4 = 4y + 28

Subtract 4y from both sides

4y - 4 = 28

Add 4 to both sides

4y = 32

Divide both sides by 4

y = 8

QPR = 8y - 4

QRP = 8(8) - 4

QRP = 60º

Answer:

GIVEN :-

TO FIND :-

FACTS TO KNOW BEFORE SOLVING :-

SOLUTION :-

In ΔABC ,

[tex]=> 0.2588... = \frac{BC}{60}[/tex]

[tex]=> BC = (0.2588....) \times 60 = 15.5291.....[/tex] ≈ 15.5 ft

[tex]=> 0.9659..... = \frac{AC}{60}[/tex]

[tex]=> AC = (0.9659.....) \times 60 = 57.9555.....[/tex] ≈ 58 ft

Area of ΔABC = [tex]\frac{1}{2} \times 58 \times 15.5 = 449.5 \:ft^2[/tex]

Answer:

5/6 is he answer there isn't any other way for it to be improper

hope this helps

have a good day :)

Step-by-step explanation:

[tex]b=6\frac12\,in\,,\quad h=6\,in\\\\\\A=b\cdot h\\\\=6\frac12\cdot6= 6\cdot6+\frac12\cdot6 =36+3\\\\=39\ \text{in}^2[/tex]

Answer:

100

Step-by-step explanation:

because 4, 3, and 2 all make 180 and 4 and 2 are both 40 so you add that which makes 80 and then you take 180 and subtract 80 which gives you 100

Answer:

100

Step-by-step explanation:

This is because angle 1 and angle 2 are congruent, so both of them are 40 degrees. To find angle 3, you do 40+40 which is 80. You then subtract 180-80=100. This is because angles 1, 2, and 3 are all on 1 straight line.

Answer:

2n^3

Step-by-step explanation:

9514 1404 393

Answer:

  B.  45π cm^3

Step-by-step explanation:

The volume is given by ...

  V = 1/3πr^2h

where r is the radius (half the diameter) and h is the height. With the given numbers, we have ...

  V = (1/3)π(3 cm)^2(15 cm)

  V = 45π cm^3 . . . volume of each cup

Answer:

[tex]common \ ratio ,r =\frac{a_{2} }{a_{1} } = \frac{12}{72}=\frac{1}{6}[/tex]

option D

Answer:

87.5 miles

Step-by-step explanation:

Answer: Answer is C. but if you want to double check before giving this in pls use a greater than less than calculator.

Step-by-step explanation:

Answer:

The answer is A

Step-by-step explanation: BIG BRAIN

The equation that will tell us the measure of the additional angle, a, that Nuha needs to push the door before she can get out is D: 160 - 40 - a.

To determine the equation that will give us the measure of the additional angle, a, that Nuha needs to push the door before she can get out, we can break down the information provided:

1. The door needs to rotate 160° for Nuha to pass through.

2. The wind pushed the door 40°.

To find the additional angle that Nuha needs to push the door, we can subtract the angle already rotated (40°) and the angle she needs to pass through (160°) from the total rotation angle:

Total rotation angle = Angle already rotated + Angle Nuha needs to push + Additional angle Nuha needs to push

Based on this equation, we can eliminate options A, B, and C since they do not accurately represent the situation.

The correct equation is option D: 160 - 40 - a. This equation represents subtracting the angle already rotated (40°) and the angle Nuha needs to pass through (160°) from the total rotation angle, leaving the additional angle (a) that Nuha needs to push the door.

To learn more about the equation;

https://brainly.com/question/12788590

#SPJ4

The complete question:

Nuha is going through a revolving door that needs to rotate 160° to allow her to pass through. The wind pushed the door around 40°. Nuha needs to push it the rest of the way.

Which equation will tell us the measure of the additional angle, a, that Nuha needs to push the door before she can get out?

Choose 1 answer:

A: 160+40= a

B: 40 x 2 = a

C: 160 ÷ 40 = a

D: 160-40-a

Answer:

4

Step-by-step explanation:

3- 3

23 - 3

20 / 5 = 4.

4 x 5 + 3 = 23, so X is 4.

Answer:

x=10, y=-5

Step-by-step explanation:

2x+3y=5, y= 5-x; change y to 5-x:

2x+3(5-x)=5

2x-3x+15=5

-x=5-15

-x=-10

x=10

=>y=5-x=5-10=-5

To find the mean, add up all the numbers in the data set. After, divide by how many numbers are in the data set. Try it out with your data. If you need help with the actual answer, feel free to write in the comment box.

Hope this helps.

Answer:

2 real solutions

Step-by-step explanation:

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

[tex]y=4x-1[/tex]

[tex]x^2+3x-2=4x-1[/tex]

[tex]x^2-x-2=-1[/tex]

[tex]x^2-x-1=0[/tex]

[tex]x=\frac{1 +-\sqrt{1-4*1*(-1)} }{2}[/tex]

[tex]x=\frac{1+-\sqrt{5}}{2}[/tex]

Answer:

-1/3

Step-by-step explanation:

→ Write down 2 coordinate pairs

(-9 , 11) and (-3 , 9)

→ Write down the slope formula

(y₂ - y₁) ÷ ( x₂ - x₁ )

→ Substitute in the numbers

( 9 - 11 ) ÷ ( 9 - - 9 )

→ Simplify

-1/3

value of x =

solution is in attachment : -

Answer:

A, C, and E

Step-by-step explanation:

For the first one, distribute -11 to each value. A negative times a negative is a positive, so -11×-2c is 22c. -11×-3d is 33d. So the first one is right. For the third one, distribute 1/3 to each value. 1/3 of 66c is 22c, and 1/3 of 99d is 33d, so the third one is correct as well. For the last one, distribute 11 again. 11×2c is 22c and 11×3d is 33d, so the last one is correct.

Answer:

Step-by-step explanation:

The graph of this type of function where the coefficient of x^4 is positive is shaped like a W.

The ends will descend from the left of the graph and rise to the right.