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olga2289 [7]
2 years ago
10

Find the measure of b.

Mathematics
1 answer:
Lyrx [107]2 years ago
6 0

Answer:

105

Step-by-step explanation:

55+50+x=180

x=75 this is the other inside angle. to find b, you need to take 75 and subtract it from 180. this is because a straight line is equal to 180 degrees

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two adjacent angles of a parallelogram are in the ratio 5:2: . find all the angles of the parallelogram​
kicyunya [14]

<h2>Given :-</h2>

  • Two adjacent angles of a parallelogram are in the ratio of 5 : 2.

<h2>To Find :-</h2>

  • What is the all angles of the parallelogram.
<h3 /><h3 /><h2>Solution :-</h2>

Let, the first angles be 5x

And, the second angles will be 2x

As we know that,

★ Sum of all angles = 180° ★

According to the question by using the formula we get,

  • ⇒ 5x+2x=180°

  • ⇒7x=180°

  • ⇒ \sf x =\: \dfrac{\cancel{180^{\circ}}}{\cancel{7}}

  • ➠ \sf\bold{\red{x =\: 25.7^{\circ}}}

Hence, the required angles are,

  • First angles = 5x = 5(25.7°) = 128.5°
  • Second angles = 2(25.7°) = 51.4°

As we know that, 

opposite angles in a parallelogram

is equal.

∴ The all angles of a parallelogram is 128.5°,51.4°, 128.5° and 51.4°.

6 0
2 years ago
Calculate S30 for the arithmetic sequence defined by {an}={3.1n-2}
timurjin [86]

Answer:

c) 1,381.5.

Step-by-step explanation:

First term = 3.1 *1 - 2 = 1.1

2nd term = 3.1*2 - 2 =  4.2

3rd term = 3.1*3 - 2 = 7.3

so the common difference d = 3.1.

S30  = (30/2) [ 2* 1.1 + (30-1) * 3.1)]

= 1,381.5.

3 0
2 years ago
A waitress fills bowls with soup. She puts The fraction shows 2 over 3. of a cup of soup in each bowl. How many bowls can the wa
bagirrra123 [75]
26 would be the correct answer because 2/3 X 40 = 26.667 but you cant serve a little bit of soup so the total would be 26   Hoped this helped
6 0
3 years ago
Read 2 more answers
Which of these shows the following expression factored completely? 6x2 – 13x +5 ​
stiks02 [169]

Answer:

B

Step-by-step explanation:

That's my guess.

7 0
3 years ago
Can anyone help me?
frozen [14]
       2x + x - 1               x
   =  ------------------ * ---------
          x(x - 1)               8

       3x - 1
=  --------------
       8x - 8
6 0
3 years ago
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