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wolverine [178]
3 years ago
11

Solve the eliminate 5a - 2b = 142a + 2b = 14​

Mathematics
2 answers:
lesantik [10]3 years ago
5 0

Answer:

a = 4, b = 3

Step-by-step explanation:

7a = 28

a = 4

5(4) - 2b = 14

2b = 6

b = 3

Lorico [155]3 years ago
5 0

Answer:

a = 4

b= 3

Step-by-step explanation:

Add equations togther

5a - 2b = 14

2a + 2b = 14​

7a + 0 = 28

devide by seven

a = 4

plug in a

2(4) + 2b = 14

8 + 2b =14

subtract a

2b = 6

devide by 2

b = 3

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Please answer all of these for 50 points!!!
wel

Answer:

Line PQ = Line XY

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Angle P = Angle X

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Angle R = Angle Z

Step-by-step explanation:

They're the same shape, just rotated and with different letters.

8 0
3 years ago
I really need help with the question above! This is my second time asking. Am I right? If not please give me the correct answer
vredina [299]
Hey there! :D

Pay attention to the given angles. 

We know that a circle is equal to 360 degrees. 

We know two angles, and the other 2 are the same measure. 

170+44= 214

Subtract that from 360, since that is what the circle equals. 

360-214= 146

Divide that by two, since there are 2 equal angles left. 

146/2= 73

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You were correct, so good work!

I hope this helps!
~kaikers
4 0
3 years ago
Find the area of the shaded sector of the circle. Leave in terms of pi.
qaws [65]

Answer:

a=10.88\pi

Step-by-step explanation:

using the formula below, the central angle is 20° (bc 360-180-160=20)

radius is 14 (28/2=14)

\frac{20}{360} =\frac{a}{\pi r^2} \\ \frac{1}{18} =\frac{a}{\pi 14^2}

\frac{1}{18} =\frac{a}{196\pi}

a=\frac{1*196\pi}{18} \\a=1*10.88\pi\\a=10.88\pi

3 0
3 years ago
Please help fast! I will give 15 points!
harina [27]

Answer:

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8 0
3 years ago
The perimeter of a rectangular painting is 304 centimeters. If the length of the painting is 95 centimeters, what is its width?
alexdok [17]
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length = 95cm
total length of painting = 95x2 = 190cm
total width of painting = 304-190 = 114cm
width = 114 divided by 2 = 57cm
4 0
3 years ago
Read 2 more answers
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