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Nimfa-mama [501]
3 years ago
12

Which one is the correct one please

Mathematics
2 answers:
yan [13]3 years ago
8 0

Answer:

The answer is 41

4² + 25

(4×4) + 25

16 + 25

41

Hope this helps

Mrrafil [7]3 years ago
6 0

Figure it out!

Step-by-step Explained: well 4 to the 2nd power is 4 multiplied by 4 which is 16

So what’s 16+25?

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In a recent study on world​ happiness, participants were asked to evaluate their current lives on a scale from 0 to​ 10, where 0
uysha [10]

Answer:

a) A response of 8.9 represents the 92nd ​percentile.

b) A response of 6.6 represents the 62nd ​percentile.

c) A response of 4.4 represents the first ​quartile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5.9

Standard Deviation, σ = 2.2

We assume that the distribution of response is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) We have to find the value of x such that the probability is 0.92

P(X < x)  

P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.92

Calculation the value from standard normal z table, we have,  

P(z

\displaystyle\frac{x - 5.9}{2.2} = 1.405\\x = 8.991 \approx 8.9

A response of 8.9 represents the 92nd ​percentile.

b) We have to find the value of x such that the probability is 0.62

P(X < x)  

P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.62

Calculation the value from standard normal z table, we have,  

P(z

\displaystyle\frac{x - 5.9}{2.2} = 0.305\\x = 6.571 \approx 6.6

A response of 6.6 represents the 62nd ​percentile.

c) We have to find the value of x such that the probability is 0.25

P(X < x)  

P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.25

Calculation the value from standard normal z table, we have,  

P(z

\displaystyle\frac{x - 5.9}{2.2} = -0.674\\x = 4.4172 \approx 4.4

A response of 4.4 represents the first ​quartile.

4 0
3 years ago
Celeste took a taxi. The meter said $45. She tips the driver 15%. How much money did she pay the taxi driver?
mixas84 [53]

Answer:

so I believe we can do 15% of 45, so that is 6.75.

so now we do:

 45.00

<u>+  6.75</u>

 <u><em>51.75 is your answer!</em></u>

please mark brainliest if correct!

5 0
2 years ago
Bryce tried to solve an equation step by step. 8 3 = 3 ( c + 5 3 ) 8 3 = 3 c + 5 3 Step 1 1 = 3 c Step 2 1 3 = c Step 3 3 8 ​ 3
In-s [12.5K]

Answer:

Sorry I don't know the answer

8 0
3 years ago
7th Grade Math... Please help me ASAP
abruzzese [7]

Answer:

Bottom left

Step-by-step explanation:

3 0
3 years ago
Factor the polynomial completely using the X method. X2 13x – 48 An x-method chart shows the product a c at the top of x and b a
Ratling [72]

X method is the method to find the factors of the polynomial equation.The factor of the given polynomial is,

x^2+16x-3x-48=(x+16)(x-3)

Thus the option 3 is the correct option,

<h3>How to find factor of polynomial using X method?</h3>

X method is the method to find the factors of the polynomial equation.

The standard form of the quadratic equitation is given as,

ax^2+bx+c

Given information-

The equation given in the problem is,

x^2+13x-48

Compare the above equation with the standard form. We get,

a=1\\b=13\\c=-48

To find out the factor of above equation using X method, follow the steps.

  • Step 1) Multiply a and c and place ac at the top of X as shown in the image.

        ac=1\times(-48)\\ac=-48

  • Step 2) Place b at the bottom as shown in the image below.

       b=13

  • Step 3) Find two numbers that multiply the top number ac and to the bottom number b.

  • Step 4) Write the polynomial from the X box as,

         x^2+16x-3x-48=x(x+16)-3(x+16)

         x^2+16x-3x-48=(x+16)(x-3)

Hence the factor of the given polynomial is,

x^2+16x-3x-48=(x+16)(x-3)

Thus the option 3 is the correct option,

Learn more about the X method here;

brainly.com/question/24379507

8 0
3 years ago
Read 2 more answers
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