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Ugo [173]
3 years ago
8

What is the value of x in equation 2/3 (x+6) = - 18? A. -36 B. -33, C. -24, D. -18

Mathematics
1 answer:
eimsori [14]3 years ago
3 0

Answer:

The answer is B. -33

Step-by-step explanation:

I doubt you'll need to show working

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Points representing 0.20, 0.35 and 0.42 are plotted on the number line.
SashulF [63]

Answer:

0.42 > 0.35

Step-by-step explanation:

' > ' means greater than

0.42 is greater than 0.35

3 0
3 years ago
Simplify the expression <br> 15+(x+9)+3
Allushta [10]
27 + x is the simplified expression.
4 0
3 years ago
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How to round 750 to the nearest hundred
Rzqust [24]
The way you round is if it is below 5 you round down and if it is above 5 you round up so in the case of 750 it would go to 800 where if it was 749 it would go to 700
7 0
3 years ago
The infant mortality rate is defined as the number of infant deaths per 1,000 live births. This rate is often used as an indicato
Basile [38]

(a)

Q1, the first quartile, 25th percentile, is greater than or equal to 1/4 of the points.  It's in the first bar so we can estimate Q1=5.   In reality the bar includes values from 0 to 9 or 10  (not clear which) and has around 37% of the points so we might estimate Q1 a bit higher as it's 2/3 of the points, say Q1=7.

The median is bigger than half the points.  First bar is 37%, next is 22%, so its about halfway in the second bar, median=15

Third bar is 11%, so 70% so far.  Four bar is 5%, so we're at the right end of the fourth bar for Q3, the third quartile, 75th percentile, say Q3=40

b

When the data is heavily skewed left like it is here, the median tends to be lower than the mean.  The 5% of the data from 80 to 120 averages around 100 so adds 5 to the mean, and 8% of the data from the 60 to 80 adds another 5.6, 15% of the data from 40 to 60 adds about 7.5, plus the rest, so the mean is gonna be way bigger than the median of around 15.

8 0
3 years ago
In the general population, one woman in eight will develop breast
MArishka [77]

Answer:

a) 8/10

b) 0.001 \overline{33}

c) Independent events

Step-by-step explanation:

The given information are;

The proportion of women than carries a mutation of the BRCA gene, P(A) = 1/600

The proportion of women in which the mutation develops breast cancer, P(B) = 8/10

a) The probability that a randomly selected woman will develop breast cancer given that she has a mutation of the BRCA gene is given as follows;

1 × P(B) = 1 × 8/10 = 8/10

b) The probability, P that a randomly selected woman woman will carry the mutation of the BRCA gene and will develop breast cancer is given as follows;

P(A) × P(B) = 1/600×8/10 = 1/750 = 0.001 \overline{33}

c) The events are dependent

Given that P(A) × P(B) = P(A∩B), the events of carrying the mutation and developing Breast cancer are independent events.

4 0
3 years ago
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