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2 years ago

I am in algebra 1, please help i am so lost :(

Mathematics

1 answer:

Wewaii [24]2 years ago

6 0

The skateboard would cost d-2h dollars because when the amount of money for both of the helmets is subtracted from the total dollar amount, then that leaves the amount that was paid for the skateboard since Timmy did not buy anything else.

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The kilo- prefix in the metric system means _______ units.

aivan3 [116]

Kilo means 1000 units

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2 years ago

The volume of a cube is 216 ft. What is the length of a side?

irina [24]

Answer: 6 in.

Step-by-step explanation:

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2 years ago

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About 12% of individuals write with their left hands. If a class of 130 students meets in a classroom with 130 individual desks,

Lynna [10]

Answer:

0.1019

Step-by-step explanation:

Probability, p=12%=0.12

Sample size, n=130 students

Those writing with left=14 students

Using the formula for binomial distribution

P(X≤x)= $\left[\begin{array}{}n\\x\end{array}\right]p^{x}(1-p)^{n-x}$

Substituting 0.12 for p, 130 for n, 14 for x we obtain

P(X≤x)= $\left[\begin{array}{}130\\14\end{array}\right]0.12^{14}(1-0.12)^{130-14}$

P(X≤x)= $130C14*0.12^{14}(0.88)^{116}$

P(X≤x)=0.1019

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2 years ago

If you know the diameter of a circle, which statement describes how to find the AREA?

pentagon [3]

Answer:

Step-by-step explanation:

PI times radius squared

6 0

2 years ago

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Please simplify, 50 points.

olga55 [171]

Answer:

The trigonometric equation (sin Θ − cos Θ)^2 − (sin Θ + cos Θ)^3 can be simplified by:Using x for Θ: (sinx - cosx)^2 - (sinx + cosx)^2 = (sin^2 x - 2sinxcosx + cos^2 x) - (sin^2 x + 2sinxcosx + cos^2 x) = - 2 sinx cosx - 2 sinx cosx = - 4 sinx cosx = - 2sin(2x)

Step-by-step explanation:

4 0

2 years ago

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