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Rzqust [24]
2 years ago
15

I need help with this please

Mathematics
1 answer:
zheka24 [161]2 years ago
3 0
Number 2




Step by step:


:)
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mixas84 [53]
I think it's cost price I heard it before somewhere Hope I've been any help to you
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3 years ago
in Joell's math class there are 8 girls and 17 boys. Based on this ratio how many students would be boys in the total school of
yan [13]
So the total number of students equals 8+17 = 25 students
Proportionally:
\frac{17}{25} =  \frac{x}{100}

Thus,
x =  \frac{17*100}{25} = 68 boys out of the 100 students.
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3 years ago
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A new pain reliever is advertised as being 97%
Likurg_2 [28]

Answer:

B. 0.694

Step-by-step explanation:

Probability is the ratio of the number of possible outcome to the number of total outcome.

Given that the pain reliever is advertised as being 97%  effective, for it to be effective in 12 independent trials

= (97%) ^ 12

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6 0
2 years ago
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What’s x Pythagorean triples
nadezda [96]
We have to find x and x is the hypotenuse. We use this formula:

hyp²=side²+side²

So:

hyp²=side²+side²

hyp²= 12²+9²

hyp²= 225

hyp²= √225

hyp= 15

Therefore, the hypotenuse is 15 and x is 15.
HOPE THIS HELPS!
HAVE A GR8 EVENING ;-)

6 0
3 years ago
Please please help me please help please please help me please help please
AVprozaik [17]

Answer:

Perimeter is 17.07

Step-by-step explanation:

We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.

We need to use the Pythagorean theorem to get the length of DE.

DE = \sqrt{5^{2} +5^{2}}=\sqrt{50}  = 7.07\\

So the perimeter of DEF is 5 + 5 + 7.07 = 17.07

5 0
3 years ago
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