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4 years ago

What is 12 fewer than h hats

Mathematics

2 answers:

oksian1 [2.3K]4 years ago

6 0

12 fewer means to subtract 12 so you would have h-12

Dahasolnce [82]4 years ago

6 0

What is 12 fewer than h hats
h- 12

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Factor the expressions .<br> 36 + 8z

Sophie [7]

Answer:

4 × ( 9 + 2z)

Step-by-step explanation:

36 + 8z = 4 × (9) + 4 × (2z) ; so here 4 is a common factor

= 4 × ( 9 + 2z)

we can also write it like this

36 + 8z = 2 × ( 18 + 4z)

3 0

3 years ago

Assume a test for a disease has a probability 0.05 of incorrectly identifying an individual as infected (False Positive), and a

Nana76 [90]

Answer:

0.00002 = 0.002% probability of actually having the disease

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Positive test

Event B: Having the disease

Probability of having a positive test:

0.05 of 1 - 0.000001(false positive)

0.99 of 0.000001 positive. So

$P(A) = 0.05*(1 - 0.000001) + 0.99*0.000001 = 0.05000094$

Probability of a positive test and having the disease:

0.99 of 0.000001. So

$P(A \cap B) = 0.99*0.000001 = 9.9 \times 10^{-7}$

What is the probability of actually having the disease

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{9.9 \times 10^{-7}}{0.05000094} = 0.00002$

0.00002 = 0.002% probability of actually having the disease

6 0

3 years ago

The fires in yellowstone national park in 1988 burned 739,000 acres. the park has 2.2 million acres total. what percentage of th

melomori [17]

739,000/2,200,000=0.3359
33.5% of the park burned

6 0

4 years ago

What is the slope of the line passing through the points <br> (-3, - 5) and (-1,6)? (URGENT)

Amiraneli [1.4K]

Vas happenin
Hope your day is going well
Slope equation is y2-y1/x2-x1
Y2= 6
Y1= -5
X2 = -1
X1 = -3
6 - -5/ -1 - -3
11/2 is the fraction
Decimal form 0.18
Hope this helps *smiles*
Sorry if this is wrong

6 0

3 years ago

Kate Smith sells vacuum cleaners and is compensated under a combination plan. She earns $9.75 per hour, plus 15 percent of whate

irina1246 [14]

Answer: $2,655

Step-by-step explanation:

She earns $9.75 per hour.

She earns 15% of whatever she sells.

She worked 160 hours

She sold 9 vacuum cleaners. (5 for $1,100 each) (4 for $450 each)

--------------------------------------------------------------------------------------------------------

Calculate the total earnings for 160 hours.

If she earns $9.75 per hour, multiply it by the total amount of hours she worked (160)

9.75*160=$1,560

Now calculate how much extra money she earned due to the sales.

To do this, we have to calculate 15% of the total price of sales.

She sold 5 vacuum cleaners for $1,100 each. Multiply to calculate the total earnings.

1100*5=$5,500

Do the same with the other 4 vacuum cleaners.

450*4=$1,800

Add up these two earnings for the total earnings.

5500+1800=$7,300

Calculate 15% of that.

To calculate percentages, convert to decimals first and then multiply. To convert to decimal, we take the percentage and divide it by 100.

15/100=0.15

Multiply

0.15*7300=$1,095

Finally, add her paycheck and extra money to calculate the total compensation for last month.

1560+1095=$2,655

5 0

3 years ago