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Alisiya [41]
3 years ago
5

3(3a+2)+6=30 what does a equal

Mathematics
2 answers:
pentagon [3]3 years ago
6 0
It’s equals 2
you can use photo math with problems like these
Naya [18.7K]3 years ago
4 0

Answer:

a=2

Step-by-step explanation:

3(3a+2)+6=30

9a+6+6=30

9a+12=30

9a=18

a=2

You might be interested in
A manufactured lot of buggy whips has 20 items, of which 5 are defective. A random sample of 5 items is chosen to be inspected.
dimulka [17.4K]

Answer:

a. 39.55%

b. 44.02%

Step-by-step explanation:

We have the following data:

n = 5

x = 1

p = 5/20 = 0.25

to. If the sampling is done with replacement.

We apply the binomial distribution formula, which is as follows:

P = nCx * (p ^ x) * ((1-p) ^ (n-x))

Where nCx, is a combination, and is equal to:

nCx = n! / x! * (n-x)!

replacing we have:

5C1 = 5! / 1! * 4! = 5

replacing in the main formula:

P = 5 * (0.25 ^ 1) * ((1- 0.25) ^ (5-1))

P = 0.3955

that is, without replacing the probability is 39.55%

b. if the sampling is done without replacement.

Here it is a little different from the previous one, but what you should do is calculate three cases,

the first was the one at point a, when n = 5 and x = 1

5C1 = 5! / 1! * 4! = 5

the second is when n = 20 and x = 5, this is all possible scenarios.

20C5 = 20! / 5! * 15! = 15504

and the third is when n = 15 (20-5) and x = 4 (5-1), which corresponds to the cases when none were damaged

15C4 = 15! / 4! * 11! = 1365

In the end, it would be:

P = (5C1 * 15C4) / 20C5

Replacing:

P = 5 * 1365/15504

P = 0.4402

Which means that without replacing the probability is 44.02%

7 0
3 years ago
What reason does Frederick Lugard use to justify British imperialism?
USPshnik [31]
His opinion was that christianity needed to be spread

5 0
3 years ago
Read 2 more answers
Equation in slope-intercept form:
Jobisdone [24]

Answer:

y = -x + 3

Step-by-step explanation:

Find the slope using the formula [ y2-y1/x2-x1 ]. We can use the points (0, 3) and (3, 0) to solve.

0-3/3-0

-3/3

-1

From the graph, the y-intercept is (0, 3). Input all the data we know into the slope intercept form expression [ y = mx + b ].

y = -x + 3

Best of Luck!

5 0
3 years ago
For each of these word problems, determine if the answer can be found using the division problem 125 ÷ 12.
olasank [31]

Answer:

125/12

Step-by-step explanation:

1st problem-no

2nd problem-yes

3rd problem-yes

4th problem-no

3 0
3 years ago
72% of what number is 27?
Tems11 [23]
72 is 266.666666667% of 27
3 0
2 years ago
Read 2 more answers
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