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zhuklara [117]
2 years ago
10

Here's the next(Sorry I've been a little late on them(And BTW I will base my questions on measurments for Cars, Boats and Vessel

s, and AirCraft)
How many mph is Mach 1?

How many mph is Mach 3?


This is for AirCrafts and Jets . . .

(Worth 15)

Good Luck!!!
Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
5 0

Based on the conversion rates of miles per hour and mach speeds, the value of Mach 1 in mph is <u>767.21 </u>mph. Mach 3 will be <u>2,283.62.</u>

<h3>What does it mean to go at mach speed?</h3>

Mach speed is used to denote the speed of an object that is traveling faster than sound.

Mach 1 would be a speed of 767.21 mph or more than 1,200 km/h. Mach 3 will be three times this speed at 2,283.62 mph.

Find out more on mach speed at brainly.com/question/5714146.

#SPJ1

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Jackie has $150 to spend on books at Barnes and Noble. She has
I am Lyosha [343]

Answer:

she would buy 5 books

Step-by-step explanation:

150 - 56 = 94

94 ÷ 20 = 4.7

Rounds up to 5 books

if 5 books is not the answer.

try 4

4 0
3 years ago
Which mathematical statements are true?
Over [174]

Answer:

1) If 3 is an odd number, then 3 times 3 is an even number.

False because multiplying odd number by an odd number also gives an odd number.

2) If 6 is less than 7, then 4 is greater than 7.

False because 4 is smaller than 6. As 6 is smaller than 7 then 4 must also be smaller.

3) Six is divisible by 3, and 10 is a multiple of 2.

True. 6/3 = 2 and 2 x 5 = 10. Both the conditions are true so it is also true.

4) The average of the data is greater than the largest value in the data, or it’s less than the largest value in the data.

True.

We have two conditions in this statement and an 'or' between them. One of the conditions is true that is "average is less than the largest value in the data". So the statement as a whole is true.

5) The slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value.

True.

6) If an equilateral triangle has equal angles, then all its angles will measure 45°.

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A triangle has 3 angles whose sum = 180 degrees.

For equilateral triangle each angle will measure 180/3= 60 degrees.

4 0
3 years ago
Subract 10x from the half of y.
Lelechka [254]
If there is nothing missing in your question, the answer is :
0.5y - 10x
4 0
3 years ago
Read 2 more answers
Julia has 8 red Barret es .two fourths of her barrettes are red .how many barrettes does Julia have?
iren [92.7K]
We know that Julia has 8 red barrettes, which are 2/4 of all her barrettes. We also know that 2/4 is as much as 1/2. So to find out how many barrettes does Julia have altogether, we just need to multiply 8 by 2:

8 * 2 = 16

Answer: Julia has <u>16 barrettes</u> altogether.
3 0
3 years ago
Test the ability of auto mechanics to identify simple engine problems, an automobile with a single suchproblem was taken to 72 d
jekas [21]

Answer:

The proportion is less than 0.75 only

Step-by-step explanation:

given that the ability of auto mechanics to identify simple engine problems, an automobile with a single suchproblem was taken to 72 different car repair facilities.

Sample proportion= 42/72=0.5833

Set up hypotheses as

H0: p =0.75

Ha: p < 0.75

(Left tailed test)

Assuming H0 to be true, std error of proportion = \sqrt{\frac{0.75*0.25}{72} } \\=0.0668

p difference = -0.1667

Test statistic Z = p diff/std error = -2.50

p value = 0.0062

since p is less than0.05 at 5% significance level we reject null hypothesis

The proportion is less than 0.75 only

6 0
3 years ago
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