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creativ13 [48]
3 years ago
11

HELP!!! all work is due in 2 hours

Mathematics
1 answer:
Assoli18 [71]3 years ago
8 0
The outside arcs for a circle enveloping a triangle will always equal 360.

Set up an equation that has all arcs equal 360:

(3x + 30) + (5x + 10) + (2x + 20) = 360

Combine like terms:

3x + 5x + 2x = 10x
30 + 10 + 20 = 60

10x + 60 = 360

Subtract 60 from both sides:

10x = 300

Divide both sides by 10 to get x by itself:

x = 30

We can now find the values of the arcs:

3(30) + 30 = 90 + 30 = 120
5(30) + 10 = 150 + 10 = 160
2(30) + 20 = 60 + 20 = 80

All three arc lengths are different, which means that the triangle's side lengths are all different. This makes the triangle a scalene triangle.
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Heather wants to purchase a pet from her local pet store. The pet store is offering 50% off rare exotic parrots. The original pu
melamori03 [73]

C) $472.77

Step-by-step explanation: The parrot is half off so it goes from $956.50 to $478.25. Add the bird cage for $47.05 and she has a total of $523.3 to pay. The 10% off coupon makes her need to pay $472.77.

8 0
3 years ago
Read 2 more answers
One hundred sixty divided by one fourth equals what
Anna35 [415]
40 ......................
8 0
3 years ago
HELP ME PLS I WILL GIVE YOU THE BRAINEST
Fiesta28 [93]

Answer:

The first term should be positive

She did not distribute the -4 properly

She added \frac{2}{7} to negative -4 instead of multiplying

Step-by-step explanation:

In order to tell where she is wrong we should solve the question our selves. we are going to get the following......

-4(-3x + \frac{2}{7})= -4(-3x) +  (-4)(\frac{2}{7} )= 12x - \frac{8}{7}

So now we see that the three things she did wrong are.

The first term should be positive

She did not distribute the -4 properly

She added \frac{2}{7} to negative -4 instead of multiplying

Hope this helps :)

7 0
3 years ago
Read 2 more answers
Jermaine, Keira, and Leon are buying supplies for an art class. Jermaine bought 2 canvases, 4 tubes of paint, and 2 paint brushe
maria [59]

Answer:

canvas $3

tube of paint $5

paint brush $4

Step-by-step explanation:

We need to choose variables for the prices of the different items, translate the sentences into equations, and solve a system of equations.

1. Define variables

Let c = price of 1 canvas, t = price of 1 tube of paint, and b = price of 1 brush.

2. Translate sentences into equations

"Jermaine bought 2 canvases, 4 tubes of paint, and 2 paint brushes for $34."

2c + 4t + 2b = 34

"Keira spent $22 on 1 canvas, 3 tubes of paint, and 1 paint brush."

c + 3t + b = 22

"Leon already has plenty of paint, so he bought 3 canvases and 2 paint brushes for $17."

3c + 2b = 17

The system of equations is

2c + 4t + 2b = 34       Eq. 1

c + 3t + b = 22           Eq. 2

3c + 2b = 17               Eq. 3

Since the third equation has only the variables c and b, we use the first equations to eliminate variable t and give us an equation in only c and b.

3 * Eq. 1 - 4 * Eq. 2

2c + 2b = 14

c + b = 7            Eq. 4

Eq. 3 and Eq. 4 form a system of equations in two variables.

3c + 2b = 17      Eq. 3

c + b = 7          Eq. 4

Solve Eq. 4 for b.

b = 7 - c        Eq. 5

Substitute into Eq. 3.

3c + 2(7 - c) = 17

3c + 14 - 2c = 17

c = 3

Plug in c = 3 into Eq. 5.

b = 7 - 3

b = 4

Plug in c = 3 and b = 3 into Eq. 2.

c + 3t + b = 22           Eq. 2

3 + 3t + 4 = 22

3t + 7 = 22

3t = 15

t = 5

Answer:

canvas $3

tube of paint $5

paint brush $4

7 0
3 years ago
Find the distance between the points.<br><br> (9.7, -2.1), (-3.2, 8.1)
seropon [69]
The answer you are going to be looking for with this question is 16.4. Hope this helps you out a little :)
4 0
3 years ago
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