Which algebraic expression represents the phrase "four times a number"?
4 + c
C-4
4-0
4c

Answer:

x = -8

Step-by-step explanation:

4 (x − 1) − 4 (x + 2.5) = x − 6

Distribute

4x -4 -4x -10 = x-6

Combine like terms

-14 = x-6

Add 6 to each side

-14+6 = x-6+6

-8 =x

Answer:

-8 =x

Step-by-step explanation:

4 (x − 1) − 4 (x + 2.5) = x − 6

4x -4 -4x -10 = x-6  (Distribute )

-14 = x-6  (Combine like terms )

-14+6 = x-6+6 (Add 6 to each side)

-8 =x

I hope this helps!

Answer:

16.8

Step-by-step explanation:

If 4.2 is 25% of a number:

25% x 4 = 100%

4.2 x 4 = 16.8

_______________________________

Hey!!

Solution,

Area of a square field=6084m^2

Length(l)=?

Now,

Area of square=l^2

or, 6084=l^2

or,L=√6084

L= 78

So the length of each side of a square field is 78 m.

Hope it helps...

Good luck on your assignment

________________________________

Answer:

Look at the image

Step-by-step explanation:

Answer:

7.19 is the tip

Step-by-step explanation:

Take the amount of the bill and multiply by the tip percentage

47.96 * 15%

Change to decimal form

47.96 * .15

7.194

Round to 2 decimal places

7.19

Answer: $7.19

Step-by-step explanation:

15/100 = 0.15

We only want the tip, not the total cost:

Do 0.15 * $47.96 to get about $7.19

Answer:

its rather B or C

Step-by-step explanation:

c(c)=y

so the slope is Y=2x+2

the reason why its rather B or C is because of the axis

i   dont know what belongs where

Answer:

A. y=-3x+4

Step-by-step explanation:

Since the equation is in y=mx+b form, m represents the slope of a line. To solve for slope-intercept, use the equation m=(y2-x2)/(y1-x1).

[tex]m=\frac{-2-4}{2-0}[/tex]

[tex]m=\frac{-6}{2}[/tex]

[tex]m=-3[/tex]

Make sure to plug in one of the points into the equation to check if the numbers equal to one another or not.

Answer:

the player can expect to turn over a black card about 400 times.

Step-by-step explanation:

the way to solve a probability question is like this:

there are 52 total cards, out of those 52 cards, half of them are black cards.

that means 1/2 of 52 = black cards

if the plays 800 times, and half of the cards are black, the player can expect to have a 50% chance of flipping over a black card.

800/50 = 400.

therefore the player can expect to have flipped a black card 400 times.

The right options are:

Option A

Option B

Option C

Please see the attached picture.

hope it helps

Good luck on your assignment..

Answer: A = $804 18 tickets cost $10 and 52 cost $12

Step-by-step explanation:

A = $804 18 tickets cost $10 and 52 cost $12

B = $736

C = $830

D = $170

Answer:

Step-by-step explanation:

1) Kate:

Number tickets  = x

Cost of 10 tickets = 10x

Parking fee = $ 5

Total money spend = $ 35

10x + 5 = 35

2)Ram:

Number of pen given to a friend =x

Number of pen given to 5 friends = 5*x = 5x

Number of pens left with him = 10

Total pens he had before giving to his friends = 35

5x + 10 = 35

Answer:

Left. Right

1. - c

2. - b

3 - a

Answer:

88.33.. ft²

Step-by-step explanation:

The area (A) of a rhombus is calculated as

A = [tex]\frac{1}{2}[/tex] product of diagonals , thus

A = 0.5 × 14.6 × 12.1 ≈ 88.33 ft²

Answer:

We could try another method to check, where we highlight each right angle as each is congruent from centre point.

1/2 7.3 base = 3.65 x 6.05 = 22.0825 x 4 = 88.33unit^2

Step-by-step explanation:

Answer:

in thirds so Dena gets 1/3 and Sue gets 2/3 which is half

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

the triangle is scalene because all of the side lengths have different measurements

_______________________________

Yes, it is a scalene triangle.

We can say it is a scalene triangle because none of the sides are equal in the given figure.

Hope it helps..

Good luck on your assignment

____________________________

Answer:

C = 159600

Step-by-step explanation:

Because its Y=2 (10) square so times by its self.

Answer:

Here is the mpg for each 6 cylinder:

(23), (24), (30), (23) ,(21), (20) ,(23), (21) ,(23), (22)

i : between 20-24 = 9/10

ii between 25-29 = 0/10

iii at least 30 mpg = 1/10

c- 38, 28,25,26,24,25

d- the mileage of six cylinder car is less than the mileage of four cylinder cars using the same amount of fuel. it is somehow accurate, other factor that affects is the model of the car and how big it is.

Step-by-step explanation:

Answer is;−

9

x

−

2

−

2

x

3

−

3

x

2

+

x

+

3

Simplify by adding terms.

Tap for more steps...

x

3

+

2

x

2

−

8

x

+

1

Answer:

last one

Step-by-step explanation:

Answer: The first graph

Step-by-step explanation:

Answer:

C

Step by step

3x2 - 5x+1 + 2x2 + 9x-6

Combine like terms

5x2 + 4x - 5

You are welcome and don't for get to click THANKS

Answer:

c

Step-by-step explanation:

I did the quiz just now

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

Now x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

Here, we are required to express x² + 4x - 7 in the form (x+a)² - b and determine the values of a and b.

By completing the square method;

a = (4/2) = 2.

Therefore, by expanding (x+a)² i.e (x+2)²

We therefore have; x² + 4x + 4

However, the question is given as x²+4x-7

Therefore, by comparison between;

x² + 4x + 4 and x²+4x-7; we have;

4 - b = -7, b = 7+4

Ultimately, b = 11

Read more:

https://brainly.com/question/13981588

Answer: A

Step-by-step explanation:

Answer:

254.502

Step-by-step explanation:

IF THE "SHADED AREA" MEANS THE CIRCLE, THEN THIS IS THE ANSWER! Whenever you need to find the area of a circle, you always have to multiply pi by the second power of your radius. The radius is just have of the diamater of the circle, which--in this case--is 18. So the radius of this circle would be 9 and the problem would be: A = pi x 9 to the second power. Although since your teacher said that pi was not in fact 3.14159 etc, and instead 3.142, you have to multiply 3.142 times the second power of 9, and you get 254.502. Hope this helped!

Answer:

i believe the answer is: 69.498 cm

Step-by-step explanation:

Answer: y=1/2x-4

Step-by-step explanation:

Since we are given the slope, we can use the slope-intercept form to find the y-intercept.

y=1/2x+b

-3=1/2(2)+b

-3=1+b

b=-4

Now that we know our y-intercept, we can fill in our slope-intercept equation.

y=1/2x-4

Answer:

a

Step-by-step explanation:

Answer:

answer is D

Step-by-step explanation:

Answer:

Step-by-step explanation:

factors of 105:

1, 3, 5, 7, 15, 21, 35, 105

factors of 126:

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

GCF: 3*7 or 21

The  GCF ( 105, 126) =  3 *7 =21.

The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share.

Given:

105 = 3 * 5 * 7

126 = 2 * 3* 3 *7

So, GCF ( 105, 126) =  3 *7 =21

Learn more about GCF here:

https://brainly.com/question/9737217

#SPJ2

Circumference = 2 pi r

R = 10

Pi = 3.14

Circumference = 2×3.14×10

=20×3.14 = 62.8 cm

_____________________________

Hey!!!

Radius(r)=10 cm

Circumference=?

Now,

Circumference=2 pi r

=2*3.14*10

=62.8 cm

So the answer is 62.8 cm

Hope it helps

Good luck on your assignment

______________________________

Answer:

point - slope form: y+1 =2(x+2)

slop - intercept form:  y =2x +3

standard form : 2x -y = -3 or -2x+y = 3

Step-by-step explanation:

find slope from given points using slope formula y₂ -y₁ / x₂ -x₁

slope m =5-(-1)/1-(-2) =6/3 =2

point - slope form is y - y₁ =m (x - x₁) where x₁ and y₁ are coordinates of one of the given points so

y - (-1) = 2(x -(-2))

y+1 =2(x+2)

slop - intercept form is y =mx +b where m is a slope and b is y intercept

now if you rearrange y+1 =2(x+2) as y =......

y+1 =2(x+2) → y+1=2x+4 → y = 2x+4-1 → y =2x +3

standard form is Ax +By = C where A,B,C are numbers; then by rearranging the equation again, it will be

2x -y = -3

graphing is done by using  slop - intercept form:  y =2x +3

pick 2 points and draw the line; use given points

The answer is A.) (x + 4)^2 = 23

Proof that I am correct

Answer:

1,4,6,  are the answers

Step-by-step explanation:

Answer:

the first, the fourth and the sixth

Step-by-step explanation:

i just did it