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Paha777 [63]
3 years ago
9

There are 3 seventh-grade boys, 4 seventh-grade girls, 5 eighth-grade boys, and 8 eighth-

Mathematics
1 answer:
AURORKA [14]3 years ago
8 0

Answer:

the answer would be 2/5

Step-by-step explanation:

you add up all of the boys to get 8

there are, in total 20 students that can be chosen, so there is an 8/20 chance that it would be a boy, simplified that is 2/5

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Find all solutions to the equation (sinx-cosx)^2=3
Karo-lina-s [1.5K]

Answer:

no solutions

Step-by-step explanation:

Simplify the equation (\sin x-\cos x)^2=3:

\sin^2 x-2\sin x\cos x+\cos ^2x=3,\\ \\ (\sin^2x+\cos^2x)-2\sin x\cos x=3.\\

Since

\sin^2 x+\cos^2 x=1

and

2\sin x\cos x=\sin 2x,

we have

1-\sin 2x=3,\\ \\\sin 2x=-2.

Since \sin 2x cannot be less than -1, this equation has no solutions.

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4 years ago
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3 years ago
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Short Answer: B

Long Answer:

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2 years ago
Find the domain of h(x)= 1/ 3x^2-15x
Schach [20]

Hello!

To find the domain of the function h(x), we need to find the values of x where it is undefined.

We can begin by factoring the denominator of the rational function, h(x).

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h(x) = 1/3x(x - 5)

After factoring the denominator, apply the zero product property.

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x = 0

x - 5 = 0 (add 5 to both sides)

x = 5

The values of 0 and 5 cause h(x) to be undefined. The function h(x) comes from negative infinity to zero, where there is an asymptote. Also, from zero to five, there is also an asymptote. Finally, the function h(x) also goes to infinity from five.  

So therefore, the domain of the function h(x) is: (-∞, 0) ∪ (0, 5) ∪ (5, ∞).

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3 years ago
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Lisa pays $1339.70 quarterly on her property taxes, what is her monthly payment?
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Every quarter is 3 months so you must divide 1339.70 by 3 to get her monthly payment of  about $446.57.


Hope this helps :3
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3 years ago
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