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Vlada [557]
3 years ago
14

I need help with this please

Mathematics
1 answer:
olchik [2.2K]3 years ago
7 0

Answer:

A, C,A,B lol there you go!

Step-by-step explanation:

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Each wheel of Gia's bicycle is 24 inches in diameter. Gia rides her bike 1,884 feet. To
GuDViN [60]

25 times does her front bicycle wheel turn all the way around .

<u>Step-by-step explanation:</u>

Here we have , Each wheel of Gia's bicycle is 24 inches in diameter. Gia rides her bike 1,884 feet. We need to find that the nearest whole number, how many times does her front bicycle wheel turn all the  way around . Gia rides a total of 1884 feet which is basically the sum of circumference of wheel many times . Let's calculate perimeter of wheel:

Perimeter = 2\pi r

⇒ Perimeter = 2\pi r

⇒ Perimeter = 2\pi (\frac{D}{2} )

⇒ Perimeter = \pi D

⇒ Perimeter = (3.14) 24

⇒ Perimeter = 75.36 inches

Number of times bicycle turn  = \frac{1884}{perimeter}

⇒ Number of times bicycle turn  = \frac{1884}{perimeter}

⇒ Number of times bicycle turn  = \frac{1884}{75.36}

⇒ Number of times bicycle turn  = 25

Therefore, 25 times does her front bicycle wheel turn all the way around .

6 0
3 years ago
Rewrite (2)^6x with only x as the exponent.<br><br> PLEASE HELP
Mashcka [7]

Answer:

64^x would be the correct answer

Step-by-step explanation:

It would be greatly appreciated if you gave me brainlest

3 0
3 years ago
The table gives information about the speeds, in kilometres per hour, of 80 motorbikes as each pass under a bridge.
natka813 [3]

The modal class is 70 - 80 and the mean speed is 66.4

<h3>How to determine the modal class?</h3>

The table of values is given as:

Speed    Frequency

40 - 50          10

50 - 60          16

60 - 70          19

70 - 80          23

80 - 90          12

The modal class is the class with the highest frequency

The class 70 - 80 has the highest frequency of 23

Hence, the modal class is 70 - 80

<h3>How to determine the mean?</h3>

Rewrite the frequency table to include the class midpoints

x             f

45          10

55          16

65          19

75          23

85          12

The estimate of the mean speed is then calculated as:

\bar x =\frac{\sum fx}{\sum f}

So, we have:

\bar x = \frac{45* 10 +  55 * 16 + 65 * 19 + 75 * 23 + 85 * 12}{80}

Evaluate

\bar x = 66.4

Hence, the mean speed is 66.4

Read more about mean and mode at:

brainly.com/question/14532771

#SPJ1

6 0
2 years ago
Find the component form of v given the magnitudes of u and u + v and the angles that u and u + v make with the positive x-axis.
german
Given |u| = 1 and a = 45, you can determine the component form of u.
u = \ \textless \  cos(45),sin(45)\ \textgreater \

In same way you can find component form of u+v
u+v = \ \textless \ 2cos(90), 2sin(90)\ \textgreater \

By property of vector subtraction:
v = (u+v) - u

v = \ \textless \ 2cos(90) - cos(45), 2sin(90) - sin(45)\ \textgreater \
v = \ \textless \  -\frac{\sqrt{2}}{2}, 2-\frac{\sqrt{2}}{2} \ \textgreater \
5 0
3 years ago
Please explain this to me please <br> Will give brainly if you actually answer the questions
RSB [31]

Answer:

Step-by-step explanation:

11)  $175(1 - 0.30)(1 + 0.06) = $129.85

12) slope is 2, so basic equation is

y = 2x + b

plug in your desired point

-5 = 2(-4) + b

b = 3

y = 2x + 3

5 0
3 years ago
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