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Tanzania [10]
3 years ago
12

Find the value of A A: 18 B: 21 C: 20 D: 17

Mathematics
2 answers:
statuscvo [17]3 years ago
8 0

These are vertical angles so they are equal so

6a +  11  = 2a + 83  

Solve for A

= 18

-  Prodixy ☕

AnnZ [28]3 years ago
6 0

These are vertical angles so they are equal so

6a +  11  = 2a + 83  

now solve for a

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Choose the best score on a quiz. 24 points out of 42 24 points out of 42 75 points out of 135 75 points out of 135 150 points ou
stellarik [79]

Answer:

150/250

Step-by-step explanation:

24/42, 75/135, 150/250, and 75/150 I believe is what you're asking. We know 75/135 is better than 75/150 so 75/150 is out of the equation. If we multiple 75/135 by 2 we get 150/270 which is more than 150/250, so 75/135 is out of the equation. Now to compare 24/42 and 150/250 we can divide their fractions, if we divide 24/42 we get 0.57, so 57%. If we did 150/250 we get 0.6 or 60%. So 150/250 is the best score.

8 0
3 years ago
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An equation in the form ax2+bx+c=0 is solved by the quadratic formula. The solution to the equation is shown below.x=−7±√ "572"
7nadin3 [17]

Answer:

B: a = 1, b= 7, c = -2

Explanation:

\sf Quadratic \ Equation : \dfrac{-b\pm \sqrt{b^2 - 4ac} }{2a}

Knowing This:

<u>solve for b</u>

  • -b = -7
  • b = 7

<u>solve for a</u>:

  • 2a = 2
  • a = 1

<u>solve c</u>:

  • b² - 4ac = 57
  • 7² - 4(1)(c) = 57
  • -4c = 57 - 49
  • -4c = 8
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4 0
2 years ago
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In a recent survey 7 out of 10 people prefer coffee in the morning the rest said they prefer tea if 27 people said they prefer t
prohojiy [21]
<span>To find the answer to this equation, use the result of "27 people" who prefer tea. This is equivalent to 3 out of 10 people in the whole survey sample. Using equivalent fractions to find the total sample, we see that "3/10 = 27/x." Multiplying 3 by 9 gives 27, so multiplying 10 by 9 gives a total sample size of 90 people.</span>
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3 years ago
514 divided by 9 as remainder
lesantik [10]

Answer:

57 and a remainder of 1 or 0.11.

Step-by-step explanation:

514dividedby9=57.1

6 0
2 years ago
Please Help me !!!!!!!!!!! X=
Alex787 [66]
Try x = 65
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