3 years ago

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Mathematics

1 answer:

Monica [59]3 years ago

6 0

The vertical line that goes through the vortex

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Let f(x) = 3x^2 – 8x + 5 and let g(x) = 2x – 8. Find

fenix001 [56]

Answer:

B. 3x² – 10x + 13

Step-by-step explanation:

given:

f(x) = 3x² – 8x + 5

g(x) = 2x – 8

f(x) - g(x)

= (3x² – 8x + 5) - (2x – 8)

= 3x² – 8x + 5 - 2x + 8

= 3x² – 10x + 13

3 0

2 years ago

Write the divisor of 4/12=1/3

mars1129 [50]

<span>4/12=3/9=2/6=1/3 </span>should be the right answer. (You have to reduce.)

4 0

2 years ago

Solve using the quadratic formula 5x^2-4x=2

Alexus [3.1K]

Answer: x= ±(√30) / 5

Step by step:

8 0

3 years ago

A multiple choice test has four possible answers for each question. Let X be the number of correct responses in a test of 100 qu

dimulka [17.4K]

Answer:

a. 4.33.

Step-by-step explanation:

If there is only one correct answer out of four alternatives, the expected proportion of correct answers is p =0.25

Sample size (n) = 100 questions

The standard deviation of a proportion 'p' is given by:

$s=\sqrt{\frac{p*(1-p)}{n} }$

Applying the given data:

$s=\sqrt{\frac{0.25*(1-0.25)}{100}}\\s=0.0433$

If X is the number of correct responses in 100 guesses, the standard deviation of X is:

$\sigma = n*s=100*0.0433\\\sigma = 4.33$

The standard deviation of X is 4.33 questions.

7 0

2 years ago

Solve for x: 3+x=2x=?

Leokris [45]

Answer:

x=3

Step-by-step explanation:

3+x=2x

Subtract x from each side to get the variable on one side

3+x-x=2x-x

3 = x

4 0

3 years ago

Read 2 more answers