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frozen [14]
3 years ago
11

( –2x – 14x2) – ( 10x – 2) + 2(10x3 – 3)

Mathematics
1 answer:
Murrr4er [49]3 years ago
4 0

Answer:130

Step-by-step explanation:\

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PLEASE ANSWER QUICKLY<br> (I will give first answer Brainliest)
Zina [86]

Answer:

The measure of Angle A is 45.5 degrees

Step-by-step explanation:

In order to find the measure of the angle A, add it to the measures of angle B and C. Since it is an isosceles triangle, we know that B and C have the same measure. Then we set this equal to 180.

A + B + C = 180

2x + 4 + 3x + 5 + 3x + 5 = 180

8x + 14 = 180

8x = 166

x = 20.75

Now we can find the measure of Angle A by putting the value of x in for x.

2x + 4 = A

2(20.75) + 4 = A

41.5 + 4 = A

45.5 = A

3 0
3 years ago
please help people! I have a test on this stuff soon and I don't understand! Question: What is the remainder of 9 divided by 7?
Ugo [173]

Answer:

The remainder would be what remains from the equation so in this case it would be about 1.3 or so.

Step-by-step explanation:

If you divide 9 by 7 then you get for an answer 1.285 and so on. So your answer will be 1.3 or 1.2 because you round up the number from either the first number in the decimal or the second number in the decimal.

8 0
3 years ago
Read 2 more answers
What is the MEAN of the following data set: 4, 5, 6, 7, 3, 4, 10, 1
Anna007 [38]

Answer:

5

Step-by-step explanation:

you add up all the numbers, then divide but how many numbers there are:

all add up to 40, divide the 40 by 8 to get 5

7 0
3 years ago
Read 2 more answers
Solve the simultaneous linear equation 2x+5y=11, 7x+4y=2​
Andrews [41]

Answer:

x = -\frac{34}{27} and y = \frac{73}{27}

Step-by-step explanation:

2x + 5y = 11

7x + 4y = 2

Let's try elimination here since we have a system of equations:

-7(2x + 5y = 11) = -14x - 35y = -77

and

2(7x + 4y = 2) = 14x + 8y = 4

The <em>x</em>'s cancel out now so let's combine the two equations:

-35 + 8 = -27

-77 + 4 = -73

-27y = -73

y = \frac{73}{27}

Now that we have <em>y</em>'s value, let's plug that value in for <em>y</em> in the other equation. You may choose whichever equation you want to solve for <em>x</em> but it is recommended to use the easiest one. (Since this value is complicated, it won't really matter.)

2x + 5(\frac{73}{27}) = 11

2x + \frac{365}{27} = 11

2x = -\frac{68}{27}

x = -\frac{34}{27}

To check and make sure you have the correct values, plug both values into the orginal equation and make sure the equation is true.

5 0
3 years ago
Read 2 more answers
Plsss help im rlly rlly stuckkk
-BARSIC- [3]

Answer: 3.3

Step-by-step explanation:

200(x-0.3)=600

Multiply x by 200 and 0.3 by 200

200x-60=600

Add 60 to both sides

200x-60=600

        +60  +60

Add them

200x=660

Divide

660/200 = 3.3

Answer: 3.3

Your welcome :)

7 0
3 years ago
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