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Kay [80]
3 years ago
14

Find all missing angles y+30+2y=180

Mathematics
1 answer:
kirill [66]3 years ago
7 0

Answer:

Step-by-step explanation:

y+30+2y=180

Add like terms

3y+30=180

Subtract 30 on both sides

3y=150

Divide by 3 on both sides

y=50

Now all you have to do i calculate the angles.

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Solve using ELIMINATION (with step by step explanation) Please<br><br> 3x+y=-9<br> y=5x+7
Yuki888 [10]

Answer:

<h2>x = -2 (verified by algebra) ✅</h2>

Step-by-step explanation:

Since we are given the value of y, we can replace it with 5x + 7.

We now have: 3x + 5x + 7 = -9

We can now simplify by adding 3x and 5x to get 8x.

8x + 7 = -9

We can subtract 7

8x = -16

And now, we divide by 8

x = -2

We can check to make sure we are correct

3(-2) + 5 (-2) + 7 = -9

-6 + -10 + 7 = -9

-9 = -9 ✅

7 0
3 years ago
The following is an equilateral triangle. Solve for y.
GuDViN [60]

Answer:

y = 68 degrees

Step-by-step explanation:

Here, we want to solve for an equilateral triangle with the internal angle measurement being y-8

If one of the angles is y-8, then the rest are y-8 too

mathematically, by adding all , we have a total of 180

Thus;

3(y-8) = 180

y-8 = 180/3

y-8 = 60

y = 60+8

y = 68 degrees

7 0
3 years ago
Find the distance from point B to point C.
MAVERICK [17]

Answer:

11.2 = BC

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

tan theta = opposite side/ adjacent side

tan 66 = BC/ 5

Multiply each side by 5

5 tan 66 = BC

11.23018387 = BC

Rounding to the nearest tenth

11.2 = BC

5 0
3 years ago
Read 2 more answers
Dimitri paid the same price for five different stocks. The table shows the change in the price of the stocks since he purchased
Nostrana [21]

Answer: The correct answers are:

Step-by-step explanation: The Stock had the greatest change in price is D

The Stock had the least change in price is B... Hope this helps!! Plz mark me!!! Thx :)

6 0
3 years ago
Read 2 more answers
Select the graph that does not represent two quantities in a proportional relationship. PLEASE HELP
Nostrana [21]
The answer to your problem is c
3 0
3 years ago
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