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Sholpan [36]
3 years ago
9

at Jared's last tennis match, he completed 65% of his first serves. if he attempted 80 first serves last match, how many did he

complete?
Mathematics
2 answers:
Artyom0805 [142]3 years ago
7 0
65% of 80...turn percent to decimal..." of " means multiply
0.65(80) = 52...so he completed 52 first serves
arsen [322]3 years ago
6 0
Matches * odds of completion = # of completed matches
so 80 * .65 = 52
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Y = 2x + 3
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A national organization has been working with utilities throughout the nation to find sites for large wind machines that generat
kozerog [31]

Answer:

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

Step-by-step explanation:

A Type I error happens when a true null hypothesis is rejected.

In this case, as the claim that want to be tested is that the average wind speed is significantly higher than 15 mph, the null hypothesis has to state the opposite: the average wind speed is equal or less than 15 mph.

Then, with this null hypothesis, the Type I error implies a rejection of the hypothesis that the average wind speed is equal or less than 15 mph. This is equivalent to say that there is evidence that the average speed is significantly higher than 15 mph.

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

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3 years ago
100 POINTS! ANSWER HAS TO BE CORRECT TO GET BRAINLIEST! HELP!
AleksandrR [38]

Answer:

<h2>∠Q corresponds with ∠Z</h2>

Step-by-step explanation:

  1. form a graph
  2. draw  Δ ZNM and ΔPQR on either side of the y- axis
  3. You reflect ΔZMN across the y- axis
  4. Then you translate said triangle up the graph
  5. The corresponding ∠'s will match and overlap.
  6. m∠Q ≅ m∠Z as well as being a corresponding triangle

<h3>Brainliest please?</h3>
5 0
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Solve the equation. |x + 5| = 9 {–4, 14} {–14, 4} {4, 14} {–14, –4}
inna [77]

Answer:

{-14, 4}

Step-by-step explanation:

the absolute value function only makes sure that the result always has a positive sign.

so, (x + 5) must be either +9 or -9 to make the original equation true. the absolute value would turn both into +9.

so,

x + 5 = 9

x = 4

and

x + 5 = -9

x = -14

that gives us the correct set of solutions as indicated above.

6 0
2 years ago
⦁ A total of 640 people voted in an election. The circle graph shows the results. ⦁ How many people voted for Goron? Show your w
Bezzdna [24]

Circle graphs or pie charts are used to represent data in percentages or proportions

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<h3>People that voted for Goron</h3>

The total number of votes is given as:

Total = 640

The circle chart is not given.

So, we make use of an assumed value

Assume 30% voted for Goron

The number of people would be:

Goron = 30% * 640

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Assume 45% voted for Smith or Fishman

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Read more about circle graphs at:

brainly.com/question/24461724

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