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mr_godi [17]
3 years ago
9

7+(8+4) order of operations

Mathematics
2 answers:
Kruka [31]3 years ago
4 0
You would do parentheses first so 8+4 equals 12

After that you would do 7+12

Then you just add so 7+12 is 19

19 would be your final answer

Hope this helps :)
uranmaximum [27]3 years ago
3 0

Answer:

19

Step-by-step explanation:

8+4=12 +7=19

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Solve 3(x + 2) > x.
Kamila [148]

Answer:

3x + 6 > x

2x > -6

x > -3

answer is d

6 0
3 years ago
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The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 330 grams and a standard deviati
just olya [345]

Answer:

Weights of at least 340.1 are in the highest 20%.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 330, \sigma = 12

a. Highest 20 percent

At least X

100-20 = 80

So X is the 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.842.

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

0.842 = \frac{X - 330}{12}

X - 330 = 12*0.842

X = 340.1

Weights of at least 340.1 are in the highest 20%.

3 0
3 years ago
Order of operations 8x18/4+15
sweet-ann [11.9K]

Answer:

8×18=144

4±15=19

144÷19

7.579 answer

6 0
2 years ago
3 hundreds + 7 hundreds in standard form
Anna007 [38]
3 hundreds + 7 hundreds = 1 thousand
300 + 700 = 1000
4 0
3 years ago
suppose the distnace in feet that an object travels t seconds is given by the formula d=64t^2 how far would the object travel af
Darya [45]

Answer:

The object travels 144,000,000 feet.

Step-by-step explanation:

The distance the object travel after t seconds is given by:

d(t) = 64t^2

How far would the object travel after 1.5 * 10^3 seconds

This is d when t = 1.5 \times 10^3 = 1500, so d(1500)

d(1500) = 64*1500^2 = 144000000

The object travels 144,000,000 feet.

8 0
3 years ago
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