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VMariaS [17]
3 years ago
12

I would really appreciate it if someone could answer this I will give a brainlist:)

Mathematics
2 answers:
Allushta [10]3 years ago
8 0
97 I think

Steps:
72^2 + 65^2= c^2
5184 + 4225= c^2
9409= c^2
C= 97
frez [133]3 years ago
4 0

97.

Step-by-step explanation:

By using Pythagoras theorem

AC² = AB² + BC².

Let AB = 72 and BC = 65.

AC² = 72² + 65²

AC² = 5184 + 4225

AC² = 9409.

AC = √9409

AC = 97.

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Pls help i will give u brainliest!
mafiozo [28]
Train one is going 75 m/s, train two is going 60 m/s, and train three is going 65 m/s.



Explanation:


For number one you could use the slope formula y2-y1/x2-x1, or you could simply just view it from the table that every second that’s passes the distance goes up another 75 meters. This means it would be 75 meters per second.

For the second one it’s a positive correlation that’s related meaning at every whole second (1,2,3...) the line will pass through it, so all you have to do is look at the left and see how much it’s going up by because we know it’s going up by the same amount each time.
3 0
3 years ago
I'm really bad at math!
Igoryamba

Given : (5b - 9) - 3(8 - 26)

⇒ (5b - 9) - 3(-18)

⇒ (5b - 9) + 54

⇒ 5b - 9 + 54

⇒ 5b + 45

3 0
3 years ago
Read 2 more answers
(10. 2x+16=5x-17 find qs<br>​
mylen [45]

Answer:

x = 11

Step-by-step explanation:

2x + 16 = 5x - 17

     + 17         + 17

2x + 33 = 5x

- 2x          - 2x

      33 + 3x

33/3 = 11

3x/3 = x

4 0
3 years ago
You work for a marketing firm that has a large client in the automobile industry. You have been asked to estimate the proportion
quester [9]

Answer:

The sample size must be approximately 1067 to get a margin of error of 0.03.

Step-by-step explanation:

We are given the following in the question:

Margin of error = 0.03

Significance level = 5%

Margin of error =

z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

Since, no prior proportions are given, we take

\hat{p} = 0.5

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting values, we get,

0.03 = 1.96\sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = \dfrac{1.96\times 0.5}{0.03}\\\\\\sqrt{n} = 32.67\\n = 1067.3289\approx 1067

Thus, the sample size must be approximately 1067 to get a margin of error of 0.03.

3 0
3 years ago
The function v(r) 4/3 pie r to the 3rd = can be used to find the volume of air inside a basketball given its radius. What does V
umka21 [38]

Answer:

  the volume of the basketball when the radius is r

Step-by-step explanation:

V(r) is a function name V and argument list (r). Often the letter of the function name is a reminder of what the function computes. Here, V is chosen as the name because it computes Volume. The function uses r (for radius) as its independent variable. That is why r is listed in parentheses next to the function name.

So, V(r) represents a function that computes the volume of a sphere with radius r.

6 0
3 years ago
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