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SVETLANKA909090 [29]
2 years ago
13

Help me pleaseeeeeeeee

Mathematics
2 answers:
FromTheMoon [43]2 years ago
7 0

Answer:

The value of x is <u>7</u>.

Step-by-step explanation:

<h3><u>Solution</u> : </h3>

Here, we have given that the two sides of triangle are 24 and 25.

Finding the third side of triangle by pythagoras theorem formula :

{\longrightarrow{\pmb{\sf{{(BC)}^{2}   = {(AB)}^{2} + {(AC)}^{2}}}}}

  • \pink\star BC = 25
  • \pink\star AB = 24
  • \pink\star AC = x

Substituting all the given values in the formula to find the third side of triangle :

{\longrightarrow{\sf{{(BC)}^{2}   = {(AB)}^{2} + {(AC)}^{2}}}}

{\longrightarrow{\sf{{(25)}^{2}   = {(24)}^{2} + {(x)}^{2}}}}

{\longrightarrow{\sf{{(x)}^{2} =  {(25)}^{2} -  {(24)}^{2} }}}

{\longrightarrow{\sf{{(x)}^{2} =  {(25 \times 25)}-  {(24 \times 24)} }}}

{\longrightarrow{\sf{{(x)}^{2} =  {(625)}-  {(576)} }}}

{\longrightarrow{\sf{{(x)}^{2} = 625 - 576 }}}

{\longrightarrow{\sf{{(x)}^{2} = 625 - 576 }}}

{\longrightarrow{\sf{{(x)}^{2} = 49}}}

{\longrightarrow{\sf{(x)=  \sqrt{49} }}}

{\longrightarrow{\sf{(x)= 7}}}

{\longrightarrow{\underline{\boxed{\sf{\purple{X= 7}}}}}}

Hence, the value of x is 7.

\rule{300}{2.5}

Mashutka [201]2 years ago
4 0

Answer:

The answer is 7

Step-by-step explanation:

25 times 25=625

24 time 24=576

625-576=7

And the square root of 49 is 7.

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John has two jobs. For daytime work at a jewelry store he is paid
djyliett [7]

Given Information:

John's mean monthly commission = μ = $10,000

Standard deviation of monthly commission = σ =  $2,000

Answer:

P(9,000 < X < 11,000) = 0.383\\\\P(9,000 < X < 11,000) = 38.3 \%

The probability that John's commission from the jewelry store is  between $9,000 and $11,000 is 38.3%

Step-by-step explanation:

What is Normal Distribution?

We are given a Normal Distribution, which is a continuous probability distribution and is symmetrical around the mean. The shape of this distribution is like a bell curve and most of the data is clustered around the mean. The area under this bell shaped curve represents the probability.  

We want to find out the probability that John's commission from the jewelry store is  between $9,000 and $11,000?

P(9,000 < X < 11,000) = P( \frac{x - \mu}{\sigma} < Z < \frac{x - \mu}{\sigma} )\\\\P(9,000 < X < 11,000) = P( \frac{9,000 - 10,000}{2,000} < Z < \frac{11,000 - 10,000}{2,000} )\\\\P(9,000 < X < 11,000) = P( \frac{-1,000}{2,000} < Z < \frac{1,000}{2,000} )\\\\P(9,000 < X < 11,000) = P( -0.5 < Z < 0.5 )\\\\P(9,000 < X < 11,000) = P( Z < 0.5 ) - P( Z < -0.5 ) \\\\

The z-score corresponding to 0.50 is 0.6915

The z-score corresponding to -0.50 is 0.3085

P(9,000 < X < 11,000) = 0.6915 - 0.3085 \\\\P(9,000 < X < 11,000) = 0.383\\\\P(9,000 < X < 11,000) = 38.3 \%

Therefore, the probability that John's commission from the jewelry store is  between $9,000 and $11,000 is 38.3%

How to use z-table?

Step 1:

In the z-table, find the two-digit number on the left side corresponding to your z-score. (e.g 1.4, 2.2, 0.5 etc.)

Step 2:

Then look up at the top of z-table to find the remaining decimal point in the range of 0.00 to 0.09. (e.g. if you are looking for 0.50 then go for 0.00 column)

Step 3:

Finally, find the corresponding probability from the z-table at the intersection of step 1 and step 2.

4 0
4 years ago
Find an expression for the nth term -3 , 2 , 7, 12​
slavikrds [6]

Answer:

5n-8

Step-by-step explanation:

Because this is an arithmetic progression, there is simply an addend that is being added to every number. Because that is 5, the expression, for now, would be 5n. However, the progression does not start at 0, so we will have to subtract 3, and then it would be 5n - 3. We're still not at the answer; this is because the first term starts at 1, not 0. We will have to account for that, so subtract the coefficient, or 5, from the whole expression. That would be 5n - 8, and that would be the answer.

4 0
3 years ago
What is the measure of x, given that figure ABCD is a rhombus.
dsp73
The answer would be d 
5 0
3 years ago
Common difference of 1 10 100 1000 What is the answer.
Maksim231197 [3]

Answer:

each time the numbers are being multiplied by 10

Step-by-step explanation:

1 × 10 = 10

10 × 10 = 100

100 × 10 = 1,000

hope this helps :)

5 0
3 years ago
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Naddika [18.5K]

Answer:

in 19 81 has in crimn that day there are a war

6 0
3 years ago
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