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BigorU [14]
3 years ago
15

MAY SOMEONE HELP PLZ!

Mathematics
2 answers:
JulijaS [17]3 years ago
6 0

Answer:

First pic

ratio =  \frac{62.8}{2 0}  \\  = 3.14

Second pic

< c  + 2x + (3x + 10) = 180 \\  < c = 180 - 3x - 10 - 2x \\  < c = 170 - 5x

Kruka [31]3 years ago
3 0

Answer:

Step-by-step explanation:

<h3>#1</h3>

<u>Circumference equation:</u>

  • C = πd

<u>Circumference to diameter ratio is:</u>

  • C/d = π = 3.14
  • Same result comes from the table
  • Correct choice is B
<h3>#2</h3>

<u>Sum of angles of a triangle is 180°</u>

  • m∠A + m∠B + m∠C = 180°

<u>A and C are equal angles as opposite sides are congruent.</u>

  • 2(3x + 10) + 2x = 180
  • 6x + 20 + 2x = 180
  • 8x = 160
  • x = 20
  • m∠C = 3*20 + 10 = 70°

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The reciprocal of 18 is. The reciprocal of is 2/3 is​
Leno4ka [110]

Answer:

1/18

3/2

Step-by-step explanation:

18 = 18/1 if the reciprocal means to flip the denominator and the numerator then just witched them so it would be 1/18

2/3 would be 3/2

4 0
3 years ago
A political pollster conducted a study to determine political party loyalty. To do so, he selected a random sample of 100 regist
Reika [66]

Answer: (a)

P - Value = 0.0981 is high, this indicates stronger evidence that we should fail to reject the null hypothesis: H0: pD = pR (There is no significant difference between the proportion of Democrats who plan to vote for the Democratic candidate in the upcoming election and the proportion of Republicans who plan to vote for the Republican candidate in the upcoming election). P - Value = 0.0981 is the probability of obtaining results at least as extreme as the observed results of the Hypothesis Test, assuming that the null hypothesis is correct.

(b)

Since P - Value = 0.0981 is greater than \alpha = 0.05, the difference is not significant. Fail to reject null hypothesis.

(c)

Since in the Hypothesis Test, we have failed to reject null hypothesis, we could have made: Type II Error: Failure to reject a false null hypothesis. One potential consequence of this error is as follows:

Suppose in reality there is significant difference between the proportion of Democrats who plan to vote for the Democratic candidate in the upcoming election and the proportion of Republicans who plan to vote for the Republican candidate in the upcoming election. But the political pollster wrongly concludes that there is no significant difference between the proportion of Democrats who plan to vote for the Democratic candidate in the upcoming election and the proportion of Republicans who plan to vote for the Republican candidate in the upcoming election. Type II Error is committed in this situation. The consequence of this Type II Error is that the political pollstar will that the political parties are loyal and will not do any follow up work whereas in reality it is not so.

Step-by-step explanation:

got this from chegg!!!

5 0
3 years ago
Please help me! what does x=
marta [7]
58 degrees bra cause the arc is 58 degrees and due to congruent angles x is also 58 degrees
8 0
3 years ago
A 6-ounce bag of raisins costs $2.46.An 8-ounce bag of raisins costs $3.20.Which is the better deal?
GenaCL600 [577]
So we need to compare them at the sam ounches


find the least common multiple (the smallest number that they will both multiply into)

first find the factors and group them all together, delete any repeats


6=2*3
8=2*2*2

least common multiple=2*2*2*3=24

so 6 bags=2.46
multiply by 4 to get 24
24 bags=9.84






so 8 bags=3.20
multply by 3
24 bags=9.60


9.84>9.60 so

the 8 ounce bag is less expensive
5 0
3 years ago
Read 2 more answers
Find four consecutive integers whose sum is 114.
Nezavi [6.7K]

If n is the first of these integers, then the other three are n + 1, n + 2, and n + 3. Then

n + (n + 1) + (n + 2) + (n + 3) = 114

4n + 6 = 114

4n = 108

n = 27

So the four numbers are 27, 28, 29, and 30.

6 0
3 years ago
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