True or False: When comparing and ordering scientific notation we look at the exponent first​

Answer:

x=6

DO=25

OG=35

Step-by-step explanation:

start by solving the length of DG to find x.

DO+OG=60

(4x-3)+(2x+21)=60

6x+18=60

6x=42

x=7

Now plug in x and solve.

DO=4(7)-3

DO=28-3

DO=25

OG=2(7)+21

OG=14+21

OG=35

Answer:

[tex]f(-1)=0[/tex]

Step-by-step explanation:

You are given the set [tex]f(x) = {(-1,0),(-2,2),(-3,-1)}[/tex].

All [tex]f(-1)[/tex] means is to find the y value when x is at -1.

Look at your first set of parenthesis. Your very first x term is -1, and it has a y output of 0.

There's your answer.

Answer:

3

Step-by-step explanation:

3×3=9+2=11. so 3 is the answer.

where is the roller coaster

Answer:

20x - 21y + 14

Step-by-step explanation:

1/5(150x - 80y + 50 - 50x- 25y + 20)

Step 1 - Distribute

1/5 • 150x = 30x

1/5 • (-80y) = -16y

1/5 • 50 = 10

1/5 • (-50x) = -10x

1/5 • (-25y) = -5y

1/5 • 20 = 4

Step 2 - Combine Variables

30x - 10x = 20x

-16y - 5y = -21y

10 + 4 = 14

Step 3 - Arrange the Set of Numbers

20x - 21y + 14

This is the simplified expression, I know it is correct, I doubled checked on my expression calculator.

Answer:

60/100 times by 95 so 57

Step-by-step explanation:

Answer:

Area = 156.25π meters

Step-by-step explanation:

In order to identify the area of the circle, you would need the radius. In order to find the radius, you would plug in the circumference (25π) into the equation for the circumference of a circle, like this:

C = 2πr

25π = 2πr

You would then solve the equation for r  (the radius)

25π = 2πr

12.5π = πr

12.5 = r  

Then you would plug the radius into the equation for the area of a circle.

A = π(r^2)

A = 12.5^2π

A = 156.25π

So your answer would then be 156.25π meters, since that was the unit of measurement

Answer: 156.25π m. Hope this helps.

Answer:

44.09

Step-by-step explanation:

I love theseeee

Answer:

the constant of proportionality is 10

Step-by-step explanation:

to find the constant you have to get the first number or x to be 1 so 3÷3 equals one and whatever you do to one side do to the other so 30÷3=10

hope this helps and makes sense

Answer:

C

Step-by-step explanation:

Answer:

Step-by-step explanation:

If Kevin has 4 more points

than Carl, and then Tom has

2 fewer points than Carl, then Kevin

had 6 more points than all of Tom's points.

Hope this helps! <3

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

Finding the y-intercept:

Look where the line touches the y-axis then that point is the y-intercept....in this case it's -3

Finding the Slope:

Look for a perfect point on the line then count how many places down you have to go and how many places right you have to go till you reach the next perfect point, this is called rise over run....so in this case it will go down 2 and right 1. So basically it's like this...

[tex]\frac{-2}{1}[/tex]

So that will simplify to -2

Finding the answer:

Once we plug everything in this formula...

[tex]y=mx+b[/tex]

We should get...

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

Which is Choice D

Answer: y = -2x + 3.

Step-by-step explanation:

Answer:

3x5x2=30

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

You are multiplying all 3 terms. Multiply straight across:

(3 * 5) * 2

(15) * 2

30

30 is your answer.

~

Answer:

1/ 4=4

1/3+3/1

3/4=4/

Step-by-step explanation:

Answer:

1,2,3,4,5,6,7,8,9,10

Step-by-step explanation:

Answer:

x=21

Step-by-step explanation:

supplementary angles add up to 180°

7x-3+2x-6=180

collect like terms

9x-9=180

add 9 to both sides

9x=189

divide both sides by 9

x=21

Answer:

the answer is 6.92820323028

Answer:

Step-by-step explanation:

volume = length x width x height

            = 5 x 5 x 10

            = 250 cm³

Answer:

250cm

Step-by-step explanation:

I got it right on EdG.

Answer:

see explanation

Step-by-step explanation:

The perimeter is the sum of the measures of the 3 sides.

Sum the sides and equate to 75, that is

2x - 9 + 3x + 4 + 2x + 3 = 75, that is

7x - 2 = 75 ( add 2 to both sides )

7x = 77 ( divide both sides by 7 )

x = 11

Thus

AB = 2x - 9 = 2(11) - 9 = 22 - 9 = 13 m

BC = 3x + 4 = 3(11) + 4 = 33 + 4 = 37 m

AC = 2x + 3 = 2(11) + 3 = 22 + 3 = 25 m

Answer:

x=11

Side lengths:

AB=13

AC=25

BC=37

Step-by-step explanation:

We can create an equation based off of the given information. Then, we simplify the equation to solve.

[tex](2x+3)+(3x+4)+(2x-9)=75\\(2x+3x)+(3+4)+(2x-9)=75\\(5x+7)+(2x-9)=75\\(5x+2x)+(7-9)=75\\7x-2=75\\7x=77\\x=11[/tex]

Then, we insert 11 for x, and evaluate the expressions for the side lengths.

[tex]AB=2x-9=2*11-9=22-9=13[/tex]

[tex]AC=2x+3=2*11+3=22+3=25[/tex]

[tex]BC=3x+4=3*11+4=33+4=37[/tex]

Finally, we check.

13+25+37 is 75, so this should be correct.

Answer:

X=3

Step-by-step explanation:

Equation 1:

7×3=21

21+18=39

Equation 2:

10×3=30

30+9=39

If you replace x with 3 on both equations then you get 39 and if you get 39 on both equations that means it is equal.

Could I please have BRAINLIEST?

Answer:

Step-by-step explanation:

When parabola f(x) = ax² + bx + c passes through point (x₁, y₁) that means if x=x₁ then f(x)=f(x₁)=y₁

(0, 6) ⇒   6=a·0²+b·0+c    ⇒   c=6

f(x) = ax² + bx + 6

(-3, 15)  ⇒  15 = a(-3)² + b(-3) +6   ⇒  9a - 3b = 9 ⇒

                                                      ⇒ 3a - b = 3  ⇒ b = 3a - 3

(-6, 6)  ⇒  6 = a(-6)² + b(-6) +6  ⇒ 36a - 6b = 0  ⇒

                                                      ⇒  6a - b = 0   ⇒ b = 6a

6a = 3a - 3   ⇒  3a = - 3  ⇒  a = -1

b = 6(-1) = -6

So the equation:

                         f(x) = (-1)x² + (-6)x + 6

                         f(x) = -x² - 6x + 6

Answer:

24

Step-by-step explanation:

(25^2-7^2)^-2=(625-49)^-2 = 576^-2=24

Answer:

3.5

Step-by-step explanation:

2x + 5 = 12

-- minues five from both sides --

2x = 7

-- divide both sides by two ---

x = 3.5

Please give brainliest.

Answer:

i think its 6

Step-by-step explanation: