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zhenek [66]
3 years ago
10

Help number 3 plz !!!!!!!!!!!!!!!!

Mathematics
2 answers:
gregori [183]3 years ago
3 0
D I hope this will help

RideAnS [48]3 years ago
3 0
I hope this isn't confusing... hope I helped!

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A section of a book fell out of it. The first page is numbered 35 and the last page is numbered 74. How many pages fell out?
ser-zykov [4K]

Answer:

43

Step-by-step explanation:

4 0
3 years ago
In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR.
Licemer1 [7]

Answer:

So, this triangle PQR can be broken into two right triangles, PNQ and PNR, with legs PQ = 39, PN =15, and QN = ? and PR = 17, PN = 15, and NR =? respectively.


Let's solve for what is easier first:

Since we know that 5-15-17 is a Pythagorean triplet, we can infer that NR is 5....like I said earlier, it is a right triangle, so this guess holds true.


Here comes the interesting part:

Now, we have one part of QR, which is QN.

The other part can be solved by using the Pythagorean theorem.

It is (39^2-15^2)^(1/2)..which gives you 36, the square root of 1296, which happens to be the difference between the squares of 15 and 39.

SO, QR = QN + NR

5+36 = 41

QR = 41.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Find the simplified product<br> ^3V9x^4 x ^3V3x^8
Kay [80]

\sqrt[3]{9x^4}\cdot \sqrt[3]{3x^8}\implies \sqrt[3]{(9x^4)(3x^8)}\implies \sqrt[3]{27x^{4+8}}\implies \sqrt[3]{27x^{12}} \\\\\\ \sqrt[3]{3^3(x^4)^3}\implies 3x^4

8 0
2 years ago
A coin is tossed 5 times; find the probability of getting at least 1 tail. Would you consider this event likely to happen?
grin007 [14]

Answer: 0.96875

Step-by-step explanation:

Probability of obtaining at least one tail on a toss of coin 5 times ;

P(success) in a coin toss = 1/2 = 0.5

Using the binomial distribution formula :

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

P(at least one tail) = 1 - p(0 tails)

P( 0 tails) = 5C0 * 0.5^0 * 0.5^(5-0)

= 1 * 1 * 0.03125

= 0.03125

P(at leat 1 tail) = 1 - 0.03125

P(atleast 1 tail) = 0.96875

6 0
2 years ago
What’s the pattern in the table
rusak2 [61]
What table there in none
6 0
3 years ago
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