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2 years ago

Please help I need it..

Mathematics

1 answer:

Paraphin [41]2 years ago

4 0

Answer:

Step-by-step explanation:

To find out how much 1 lunch costs, divide 33.75/15. You get 2.25. The first graph has the only answer that says one lunch is around 2.25.

Hope it helps!

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What is the value of i^n if the remainder of n/4 is 2?

nydimaria [60]

Answer:

C and D

Step-by-step explanation:

i=√-1

n/4=x.5

since 2 is the remainder

n=2x

then i^n=i^2x

when x is even, i^n =1

when x is odd, i^n=-1

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2 years ago

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Iana started to evaluate the function f(x) = 2x2 – 3x + 7 for the input value 2.

Sati [7]

The answer is nine because 2(4)=8 3(2)=6 7=7, os 8-6+7= 2+7 =9

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2 years ago

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Find the angle between 0° and 360° that is coterminal with a 443° angle.

Yakvenalex [24]

Answer:

If you rotate an angle 360 degrees around, your final angle will be facing the same direction

Thus, the coterminal angle is $443^\circ-360^\circ=83^\circ$

4 0

2 years ago

Eric's class consists of 12 males and 16 females. If 3 students are selected at random, find the probability that they

Reptile [31]

Answer:

The probability that all are male of choosing '3' students

P(E) = 0.067 = 6.71%

Step-by-step explanation:

Let 'M' be the event of selecting males n(M) = 12

Number of ways of choosing 3 students From all males and females

$n(M) = 28C_{3} = \frac{28!}{(28-3)!3!} =\frac{28 X 27 X 26}{3 X 2 X 1 } = 3,276$

Number of ways of choosing 3 students From all males

$n(M) = 12C_{3} = \frac{12!}{(12-3)!3!} =\frac{12 X 11 X 10}{3 X 2 X 1 } =220$

The probability that all are male of choosing '3' students

$P(E) = \frac{n(M)}{n(S)} = \frac{12 C_{3} }{28 C_{3} }$

$P(E) = \frac{12 C_{3} }{28 C_{3} } = \frac{220}{3276}$

P(E) = 0.067 = 6.71%

<u><em>Final answer</em></u>:-

The probability that all are male of choosing '3' students

P(E) = 0.067 = 6.71%

3 0

3 years ago

Volume & surface! May I please have help

Ludmilka [50]

Answer:

Step-by-step explanation:

surface area of cylinder

=(area of base)×2 + (area of curved surface)

$=(\frac{20}{2} )^{2} \pi$ × 2 + $20\pi$ × 25

=2 × $\pi$ × $10^{2}$ + 2 × $\pi$ × 10 × 25

3 0

2 years ago