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LenaWriter [7]
2 years ago
10

Is 27/40 equal to 0.0675

Mathematics
1 answer:
9966 [12]2 years ago
3 0

Answer:

No, is 0.675

Step-by-step explanation:

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At the U.S open tennis championship a statistician keeps track of every serve that a player hits during the tournament. The mean
GarryVolchara [31]

Answer:

Step-by-step explanation:

Both 115 and 145 mph are above the mean.  Draw a normal curve and mark these speeds.  115 mph is 1 standard deviation above the mean; 130 would be 2 standard deviations above the mean; and 145 would be 3 s. d. above it.

We need to find the area under the standard normal curve between 115 and 145.  This is equivalent to the area under the standard normal curve between z = 1 and z = 3.

I used my TI-83 Plus calculator's DISTR function "normalcdf(" to calculate this area:  normalcdf(1, 3) = 0.1573.

The area between z = 1 and z = 3 is 0.1573.  In other words, the percentage of serves that were between 115 and 145 mph was 15.73%.

8 0
2 years ago
You have 12 coins of which you need to flip only 4 heads. If the probability of flipping heads is 35%, what is the probability t
mel-nik [20]

Answer:

33.3333333333

Step-by-step explanation:

One coin would equal over 11 more would be 8.3333333333 so time that by 4

GoodLuck

5 0
2 years ago
A 30% discount on $47.50 is what <br> i need to know fast
zhuklara [117]
30% of 47.50 is 14.25 so the amount payed the person payed in total would be 33.50
0.30 x 47.50 = 14.25
47.50 - 14.25 = 33.50
4 0
3 years ago
How many values of x will satisfy the equation |x-1| = | x+3|
nalin [4]

The value of x that will satisfy the equation is x=-1.

We have given that,

\left|x-1\right|=\left|x+3\right|

We have to solve the above inequality

<h3>What is inequality?</h3>

Inequality is a relation that makes a non-equal comparison between two numbers or other mathematical expressions.

Find the positive and negative intervals

x < -3,\:\:-3\le \:x < 1,\:\:x\ge \:1

Solve the inequality for each interval

x < -3,\:\:-3\le \:x < 1,\:\:x\ge \:1

\mathrm{No\:Solution}\quad \mathrm{or}\quad \:x=-1

Therefore we get,

x=-1

To learn more about inequality visit:

brainly.com/question/24372553

#SPJ1

7 0
2 years ago
What is the range of the table of values
rodikova [14]

Answer:

Range: { 0,3,5,7,9}

Step-by-step explanation:

The range is the values that y takes

Range: { 0,3,5,7,9}

5 0
2 years ago
Read 2 more answers
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