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Vlad1618 [11]
3 years ago
7

A school has 510 male students and 850 female students. If a student from the school is selected at random, what is the probabil

ity that the student would be a male?
- 0.5
- 1
- 0.375
- 0.625
Mathematics
1 answer:
Colt1911 [192]3 years ago
5 0

Answer:

0.375

Step-by-step explanation:

510 male out of a total of 1360

510/1360 = 0.375

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Step-by-step explanation:

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Sergeeva-Olga [200]

Answer: rhombus

Step-by-step explanation:

By inspection, we can tell that there are no right angles, so we can determine it is not a square or a rectangle.

From the options, it is implied that it is a parallelogram, so to determine if it is a rhombus, we can determine if there is a pair of consecutive congruent sides.

By the distance formula,

AB=\sqrt{(-1-3)^{2}+(-1-1)^{2}}=\sqrt{16+4}=2\sqrt{5}\\BC=\sqrt{(-1-1)^{2}+(-1-3)^{2}}=\sqrt{4+16}=2\sqrt{5}

As AB=BC, there is indeed a pair of consecutive congruent sides, and thus the most specific classification is a <em>rhombus</em>

5 0
2 years ago
An executive invests 29,000, some at 8% and the rest at 7% annual interest. If he receives an annual return of $2,230, how much
jeka57 [31]

Answer:

Amount invested in A (8%) = $20,000

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Step-by-step explanation:

Given:

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Interest rate B = 7% = 0.07

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Find:

Amount invested in each

Computation:

Assume;

Amount invested in A = x

Amount invested in B = 29,000 - x

So,

Interest receive from A = x × 0.08

Interest receive from A = 0.08 x

Interest receive from B = (29000 - x) × 0.07

Interest receive from B = 2,030 - 0.07 x

Annual return = Interest receive from A + Interest receive from B

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8 0
3 years ago
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Step-by-step explanation:

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