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riadik2000 [5.3K]
3 years ago
15

Help urgent please be certain

Mathematics
2 answers:
tankabanditka [31]3 years ago
6 0

Answer:

17 =x

Step-by-step explanation:

The angles are vertical angles, so they are equal

51 = 3x

Divide each side by 3

51/3 = 3x/3

17 =x

jarptica [38.1K]3 years ago
5 0

Answer:

C) 17

Step-by-step explanation:

Since the angle needed to be 51˚ we need to figure out which number that multiplies by 3 will get to 51˚ so 17 is the answer

17 times 3 is 51˚

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The equation 4(x – 3)2 – 5 = 139 has two solutions: one positive and one negative. What is the
AlekseyPX

Answer:

Step-by-step explanation:

4(x-3)2-5 = 139

(4x-12)-5=139

-20x + 60 = 139

-20x +60 - (60) = 139- 60

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3 years ago
A random sample is made of 256 middle managers concerning their annual incomes. The sample mean is computed to be $35,420. If th
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Answer: a. $128.125

Step-by-step explanation:

The standard error of the mean is given by :

SE=\dfrac{\sigma}{\sqrt{n}} , where \sigma = population standard deviation , n= sample size.

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SE=\dfrac{2050}{\sqrt{256}}\\\\=\dfrac{2050}{16}=\$128.125

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3 0
3 years ago
A total of 332 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t
Gala2k [10]
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6 0
3 years ago
Luci and her friends go out to lunch and receive a bill for their meals that reads $56.80. How much would the
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Answer:

$68 and $10.792

Step-by-step explanation:

The computation is shown below:

The total bill received by them is $56.80

The total bill after adding 19% tip is

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= $67.592

= $68

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