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2 years ago

Find the sum. Include all calculations in your answer.

Mathematics

1 answer:

Nookie1986 [14]2 years ago

4 0

-6+3= -3
3/7+2/7=5/7
The answer is -3 5/7
Please mark as brainliest.

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If f(x) - 4x2 - 3 and g(x) = x+1, find (f- g)(x).

igomit [66]

Answer:

Given f(x) = 2x + 3 and g(x) = –x2 + 5, find ( f o f )(x). ... Given h(x) = sqrt(4x + 1), determine two functions f (x) and g(x) which, when composed, generate h(x).

Step-by-step explanation:

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3 years ago

F the point T is between the points B and N, then which of the following is true?

valentina_108 [34]

Assuming T, B and N are all on the same line, then we can say

BT + TN = BN

which is the segment addition postulate.

Subtract TN from both sides to get
BT + TN = BN
BT + TN - TN = BN - TN
BT = BN - TN
BN - TN = BT

Which is what choice C is saying. Therefore the answer is choice C.

3 0

3 years ago

Read 2 more answers

Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa

kondor19780726 [428]

Answer: 0.6827

Step-by-step explanation:

Given : Mean IQ score : $\mu=105$

Standard deviation : $\sigma=15$

We assume that adults have IQ scores that are normally distributed .

Let x be the random variable that represents the IQ score of adults .

z-score : $z=\dfrac{x-\mu}{\sigma}$

For x= 90

$z=\dfrac{90-105}{15}\approx-1$

For x= 120

$z=\dfrac{120-105}{15}\approx1$

By using the standard normal distribution table , we have

The p-value : $P(90$

$P(z$

Hence, the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827

5 0

3 years ago

Read 2 more answers

What's the sum of 86.703 + 12.197

Ira Lisetskai [31]

98.9 thats what i got

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3 years ago

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A drawing has a scale 1/4 in: 12ft. How long is 8ft?

allochka39001 [22]

If you use a proportion, you'll get:

$\frac{0.25}{12} = \frac{x}{8}$

Then, you use cross products:

$12x=0.25(8) \\ 12x=2$

Then, you algebraically solve x:

$12x=2 \\ \frac{12x}{12} = \frac{2}{12} \\ x= \frac{5}{3}$

The answer is 5/3 inches , or 1 5/13 inches, or 1.6 repeating.

4 0

3 years ago