(–x2 + 9) + (–3x2 – 11x + 4)=

Answer:

She saved 90 dollars and she owes her brother 40 still.

Step-by-step explanation:

Answer:

1: 3, 1/3

2: 9, 1/9

3: 27, 1/27

4: 81, 1/81

Answer:

11.)60 degrees the lines on the triangle (the lil dashes) mean that that all the sides are equal making all the angles equal as well so all the angles equal 60 degrees.

12.) no, because in order for all the sides to be 12ft the angles have to be 60 degrees and this one is only 58 degrees so it wont exactly reach 12ft

Step-by-step explanation:

hope this helps :P

Answer:

36 green apples

Step-by-step explanation:

First, you should divide 120 by 5 since it is 3:2 and the denominator is 5.  Since each part there are 24 fruits, you should now multiply that number by 3 which is 72.  Since 1/2 of the apple display are green, you would need to divided 72 by 2 which gets you the answer of 36 green apples.

Answer:

That's wonderful!

Step-by-step explanation:

I'm really proud of you! I'm 14 (almost 15), and taking sophomore classes right now, and a foreign language. I absolutely regret not taking a second math class this year (Algebra II).

Answer:

P could stand for anything

Step-by-step explanation:

In this case its just the variable

Answer:

-9

Step-by-step explanation:

3(-9)-2=-29

-27-2=-29

Answer:

True true false true

hope this helps

Step-by-step explanation:

Answer:

True true false true

Step-by-step explanation:

Answer: I THINK x is equal to 41:)

Answer:7 -3

              6 0

13-6=7

7-10=-3

25-19=6

18-18=0

Step-by-step explanation:

Answer:

third option from the top

Step-by-step explanation:

7. -3

6. 0

Answer:

x=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Answer:

girl u didnt add the question...

Step-by-step explanation:

Answer:

[tex]A(10,9)[/tex]

Step-by-step explanation:

Consider the attached figure.

The equation is [tex]y=x-1[/tex]

At [tex]x=0;y=0-1=-1[/tex]

At [tex]y=0;0=x-1,x=1[/tex]

Plot points [tex](0,-1)\,,\,(1,0)[/tex].

Marcus starts walking at the point B(0, 9) so that his path is perpendicular to Sarah's at point A.

From the graph, Sarah's path and Marcus's path intersect at point [tex]A(10,9)[/tex]

Answer:

412 adults

Step-by-step explanation:

Let the number of adults be x

Let the number of children be y

If a total of 1,236 people attended the concert, then;

x + y = 1236 .....1

If there were twice as many adults as children who attended the concert, then;

y = 2x

Substitute y = 2x into 1

x + 2x = 1236

3x= 1236

x = 1236/3

x = 412

Hence 412 adults attended the concert.

Answer:

N and P are equal to 48 degrees

Step-by-step explanation:

1. 3y^2=12y^2−144

2. Subtract 3y^2 from both sides

3. add 144 to both sides

4. 9y^2= 144

5. Divide both sides by 9

6. y^2 = 16

7. Take the square root of 16 ( which is y=±√16)

8.  y = 4 or y = -4

(in this case, Y would equal 4 since the angles are not negative lol)

9. Plug 4 into the equations

10. Compare each answer to see if they are equal

11. submit!

Answer:

∠ N = ∠ P = 48°

Step-by-step explanation:

Δ KMP and Δ LJN are similar ( AA postulate ), then corresponding angles are congruent,  that is

∠ P = ∠ N

12y² - 144 = 3y² ( subtract 3y² from both sides )

9y² - 144 = 0 ( add 144 to both sides )

9y² = 144 ( divide both sides by 9 )

y² = 16 ( take the square root of both sides )

y = [tex]\sqrt{16}[/tex] = 4

Then

∠ N = 3y² = 3(4)² = 3(16) = 48² = ∠ P

Answers:

f(0) = 1

f(2) = 5

============================================

Explanation:

Determining f(0)

The y intercept point (0,1) indicates that x = 0 and y = 1 pair up together. Recall that y = f(x), which means f(x) = 1 when x = 0. This is shortened to f(0) = 1.

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

Determining f(2)

Start at 2 on the x axis. Draw an arrow pointing directly upward until you get to the curve. See the diagram below. Then move to the left until you hit the y axis. You should arrive at y = 5.

This tells us x = 2 and y = 5 pair up together. Therefore, f(2) = 5.

Answer:

1,584

Step-by-step explanation:

6,600 multiplied by 24%(or 0.24) is 1,584

Answer:

ab

Step-by-step explanation:

Answer:

3:5

Step-by-step explanation:

Answer:

80%

Step-by-step explanation:

100 / 5 = 20

4 * 20 = 80

80%

Done!

Answer:

sylvia is biking home (segment 1) she is traveling at a constant rate of a mile every 15 minutes, she then takes a 20 minute break relizing she dropped something, she goes back and finds it ten minutes later (3) then she bikes home at a rate of 7 miles per 30 minutes.

Step-by-step explanation:

Answer:

uh I am pretty sure that it is $28 I'm not sure I'm only in 6th grade

Step-by-step explanation:

Answer:

The integer change is -450 cm^3

Step-by-step explanation:

Here, we want to write the integer of the change in the volume of a ballon when it loses 450 cm^3 of air

Losing this volume means we are subtracting 450 from the original volume

This represents a change of -450 cm^3

Answer:

14

Step-by-step explanation:

2+7+5

Answer:

14 total marbles.

Step-by-step explanation:

I'm pretty sure we are supposed to use addition, so

2 red marbles + 7 blue marbles + 5 green marbles = 14 marbles

Hope this helps!

Answer:

0.625

Step-by-step explanation:

Answer:

0.625

Step-by-step explanation:

hope it helped!

Answer: 4

Step-by-step explanation: 4 was the biggest denominator in that equation. so if we multiply by 4 on all the terms, all the denominators will go away. we will not have any more fractions!

Answer:

After 11 months, Stacy will have $81 in her savings account.

Step-by-step explanation:

15 + 6m = 81

6m = 66

m = 11