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3 years ago

I need help so what is the answer

Mathematics

2 answers:

Salsk061 [2.6K]3 years ago

4 0

The first thing you need to do is to add whats inside the parentheses. It is 6 6/8. Then you need to add that with the number outisde of the parentheses which is 16 7/8 which is your answer. ( please make this the brainliest)

SOVA2 [1]3 years ago

3 0

First you have to do the ones in the brackets add the numerator and denominator in the brackets than after that add it with the ones out of the brackets it's just bedmas

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What is 11 divided by the square root of 3 in simplest radical form?

lakkis [162]

I don't know what you mean by simplest radical form but the square root of 3 divided by 11 is 0.15745916432

4 0

3 years ago

How do I slove this eqaution, and whats the answer? -3(n+6)+10=-9

Sauron [17]

Answer:

$n = \frac{1}{3}$

Step-by-step explanation:

Apply the distributed property, so it now looks like this: -3n + -18 + 10 = -9
Combine like terms: -3n + -8 = -9
Simplify: -3n - 8 = -9
Add 8 to each side, so it now looks like this: -3n = -1
Divide each side by -3 to cancel out the -3 next to n. It should now look like this: n = 1/3

I hope this helps!

8 0

3 years ago

19) In the xy-plane, what is the y-intercept of the graph of the equation y=3(x-1)(x+2)?

Dahasolnce [82]

Answer:

- 6

Step-by-step explanation:

Given

y = 3(x - 1)(x + 2) ← expand factors using FOIL

= 3(x² + x - 2) ← distribute by 3

= 3x² + 3x - 6

To find the y- intercept let x = 0, thus

y = 3(0)² + 3(0) - 6 = 0 + 0 - 6 = - 6

Thus y- intercept = - 6 ⇒ (0, - 6 )

3 0

3 years ago

Please help please please help

arsen [322]

46.19 should be the answer

4 0

3 years ago

est scores for a statistics class had a mean of 79 with a standard deviation of 4.5. Test scores for a calculus class had a mean

Arte-miy333 [17]

Answer:

The z-score for the statistics test grade is of 1.11.

The z-score for the calculus test grade is 7.3.

Due to the higher z-score, the student performed better on the calculus test relative to the other students in each class

Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In this question:

The grade with the higher z-score is better relative to the other students in each class.

Statistics:

Mean of 79 and standard deviation of 4.5, so $\mu = 79, \sigma = 4.5$