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Vlad1618 [11]
3 years ago
13

What is the measure of angle B in the triangle?

Mathematics
2 answers:
pav-90 [236]3 years ago
4 0

Answer:

B = 70

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

A + B + C = 180

40 + 2x-30 + x+20 = 180

Combine like terms

3x + 30 = 180

Subtract 30 from each side

3x+30-30 = 180-30

3x = 150

Divide by 3

3x/3 =150/3

x = 50

We want to find angle B

B = 2x-30

   =2(50) - 30

   = 100 - 30

   = 70

Mice21 [21]3 years ago
3 0

The answer is B = 70 degrees

- Ignition 10 hope that helps

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Sami's bank account earns 4% simple interest per year. If Sami deposits $500, how much simple interest will she earn in one year
timurjin [86]

Answer:

$20 simple interest.

Step-by-step explanation:

The simple interest that Sami earns is 4% of her deposit since she is trying to find how much she will earn in one year (given that the interest rate is 4% per annum).  

\$500\times4\%=\$20

∴ Sami earns $20 simple interest in one year.

Hope this helps :)

6 0
3 years ago
The table represents the start of the division of 8x^4+2x^3-7x^2+3x-2 by the indicated divisor. Find the quotient.
zloy xaker [14]
Answer: <span><span>2x² + x - 2</span> (the first option)

Explanation:

1) Question: divide 8x⁴+2x³-7x²+3x-2 by 4x² - x + 1

2) First term of the quotient

</span><span>  8x⁴ + 2x³ - 7x² + 3x - 2     | 4x² - x + 1
                                           ---------------------
 -8x⁴ + 2x³ - 2x²                   2x²
----------------------------------
           4x³ - 9x² + 3x - 2

3) Second term of the quotient:
</span>
<span>  8x⁴ + 2x³ - 7x² + 3x - 2     | 4x² - x + 1
                                           ---------------------
 -8x⁴ + 2x³ - 2x²                   2x² + x
----------------------------------
           4x³ - 9x² + 3x - 2
          -4x³ +  x² -   x
        ----------------------------
                  - 8x² + 2x - 2

4) third term of the quotient:
</span>
<span>  8x⁴ + 2x³ - 7x² + 3x - 2     | 4x² - x + 1
                                           ---------------------
 -8x⁴ + 2x³ - 2x²                   2x² + x - 2
----------------------------------
           4x³ - 9x² + 3x - 2
          -4x³ +  x² -   x
        ----------------------------
                  - 8x² + 2x - 2
                    8x²  - 2x + 2
                 -------------------------
                             0

5) Conclusion: since the remainder is 0, the division is exact and the quotient is </span>2x² + x - 2

You can verify the answer by multiplying the quotient obtained by the divisor. The result has to be the dividend.
5 0
3 years ago
Read 2 more answers
Do you guys know the answers to these?
frutty [35]

Answer:

The first one is 0 slope.

The second one undefined slope.

Step-by-step explanation:

I hope it helps you!!!:-)

7 0
2 years ago
peter and his four brothers combined all of their money to buy a video game. if 20%of the total money is peters and $12.00 of th
Tamiku [17]

Answer:

60$ (b)

Step-by-step explanation:

we know that 20% of the total is peters - and peter has 12 dollars. We know that 20% 5 times gets us to 100%. So we multiply 12 by 5 to get a total answer of 60$

5 0
3 years ago
Do Ilboe.org bookmarks
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You can do this just believe in your self
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