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2 years ago

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Of the 36 students in the class, 8 of them are boys. If one student is picked at random, what is the probability that the studen

t will be a boy?

1 answer:

Arisa [49]2 years ago

6 0

I say if there are only 8 boys that leaves 28 girls there is a probability that it may be a boy but the chances would be low.

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Given the following formula,solve for t<br><br>v=u+at

ad-work [718]

Answer:

t=v-u/a

Step-by-step explanation:

t= v-u/a

we must move u to the other side and divide over a

3 0

2 years ago

If x = 8 units, y = 3 units, and h = 2 units, then what is the area

solniwko [45]

Answer:

8 sq.units

Step-by-step explanation:

x= base of triangle= 8units

h= height of triangle= 2 units

area of triangle= 1/2*b*h

=1/2* 8* 2

=8 sq.units

<em>Mark me as brainliest please</em>

7 0

3 years ago

What is the common point between lines y = ½ x + 4 and y = x – 4?

nirvana33 [79]

1/2X+4=X-4
1/2X+8=X
8=1/2X
16=X

(Pick one of the equations )
y=1/2X+4
y=(1/2)(16)+4
y=12

point: (16,12)

7 0

2 years ago

In a free-fall experiment, an object is dropped from a height of h = 400 feet. A camera on the ground 500 ft from the point of i

PilotLPTM [1.2K]

Hmmm the object, is at rest, when dropped, so it has a velocity of 0 ft/s

the only force acting on the object, is gravity, using feet will then be -32ft/s²,

was wondering myself on -32 or 32.. but anyhow... we'll settle for the negative value, since it seems to be just a bit of convention issues

so, we'll do the integral to get v(t) then

$\bf \displaystyle \int -32\cdot dt\implies -32t+C
\\\\\\
\textit{object moves from \underline{rest}, so velocity is 0 at 0secs}
\\\\\\
-32(0)+C=0\implies C=0\implies \boxed{v(t)=-32t}
\\\\\\
\textit{now to get the positional s(t)}
\\\\\\
\displaystyle \int -32t\cdot dt\implies -16t^2+C
\\\\\\
\textit{the initial \underline{position} was 400ft away at 0secs}
\\\\\\
-16(0)^2+C=400\implies C=400\implies \boxed{s(t)=-16t^2+400}$

when will it reach the ground level? let's set s(t) = 0

$\bf s(t)=-16t^2+400\implies 0=-16t^2+400\implies \cfrac{-400}{-16}=t^2
\\\\\\
25=t^2\implies \boxed{5=t}$

part B) check the picture below

5 0

2 years ago

How do you divide a whole number by a decimal? Example 9.00 divided by 6.75

sammy [17]

Answer to the example is 1.3 repeating

Step-by-step explanation:

The number we divide by is called the divisor. To divide decimal numbers: Multiply the divisor by as many 10's as necessary until we get a whole number. Remember to multiply the dividend by the same number of 10's.

5 0

3 years ago

Read 2 more answers