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2 years ago

Help pls I need it ily

Mathematics

1 answer:

Natalka [10]2 years ago

6 0

The answer is answer B!

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F(x-3)=f(x)-f(3)<br>Prove:<br>f(0)=0

Sergio039 [100]

Step-by-step explanation:

Let x=3.

So, f(3-3)=f(3)-f(3), and thus f(0)=0.

8 0

2 years ago

Solve the system of equations 3x = 84 - 2y 9x = 8y - 24

Eduardwww [97]

Answer:

$3x = 84 - 2y - - - (i) \\ 9x = 8y - 24 - - - - (ii) \\ from \: (ii) \\ 3(3x) = 8y - 24 \\ but \: from \: (i) \: \: 3x = 84 - 2y \\ hence \: put \: (i) \: in \: (ii) \\ 3(84 - 2y) = 8y - 24 \\ 252 - 6y = 8y - 24 \\ 276 = 14y \\ y = \frac{138}{7} \\ x = \frac{104}{7}$

8 0

2 years ago

What is the number for thirty-nine million five thousand in standard form

hammer [34]

395,000,000 i think not sure

5 0

3 years ago

A random variable r is normally distributed with a mean of 7 and a standard deviation of 1.5. Find the value of w so that P (8.8

a_sh-v [17]

Answer:

The answer is explained below

Step-by-step explanation:

Given that:

mean (μ) = 7 and standard deviation (σ) = 1.5.

The z score is used in statistic used to measure the number of standard deviation by which the raw score is above or below the mean value. It is given by:

$z=\frac{x-\mu}{\sigma}, where\ x\ is\ the \ raw\ score$

To find the Probability that x < 8.8, we first find the z score using:

$z = \frac{x-\mu}{\sigma}=\frac{8.8-7}{1.5}=1.2$

From the z tables, P(x < 8.8) = P(z < 1.2) = 0.8849 = 88.49%

4 0

3 years ago

7, 11, 12, 14, 17, 17, 22, ? .What will be the value in Question marked position and why?

Wewaii [24]

Answer:

Step-by-step explanation:

ii) 7, 12, 17, 22..

The difference between the i) pair is 3, and the ii) pair is 5.

So ,

17 + 3 = 20.

22 + 5 = 27.

Therefore the series is 8, 7, 11, 12, 14, 17, 17, 22, 20, 27.

8 0

2 years ago