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dolphi86 [110]
3 years ago
6

there are 15 cars in the parking lot that are white and 25 cars that are not right what is the theoretical probability of random

ly selecting a car that is not white
Mathematics
2 answers:
Pani-rosa [81]3 years ago
5 0
25/40 chance of selecting a non-white car
svlad2 [7]3 years ago
3 0
Pretty sure it's 1 in 25. 
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Two angles of a quadrilateral are 40 degree and 60 degree and the ratio of remaining two angles is 7:6. The degree measure of re
Semenov [28]

Answer:

140,120

Step-by-step explanation:

sum of angles in a quadrilateral =360

sum of the 1st two angles=60+40=100

360-100=260

the ratio of the remaining angles 7:6

therefore:

\frac{7}{13}  \times 260

=140

for the second angle

260-140=120

5 0
3 years ago
Nathan is a recreational cyclist. He can travel 10 miles in one hour on his bicycle. Which graph represents the number of miles
PolarNik [594]

Answer:

See attachment for graph

Step-by-step explanation:

Given

1\ hr = 10\ miles

Required

The graph that shows the number of miles in x hours

We have:

1\ hr = 10\ miles

Multiply both sides by x

x * 1hr = 10miles * x

xhr=10x\ miles

So, the function is:

f(x) =10x

4 0
3 years ago
You have a jar containing 39 coins , consisting entirely of nickels and dimes , worth a total of $2.55. How many nickels are in
Damm [24]

Answer: 11

Step-by-step explanation:

4 0
3 years ago
the height of a kicked soccer ball is represented by the function f(x)=8x-2x^2 where x is the number of seconds since the ball w
____ [38]

Answer:

Result at time x = 4 seconds the soccer ball hit the ground.

Step-by-step explanation:

At the moment just before the ball is kicked, it is on the ground and so the height f(x) is zero meters. After the kick, the ball goes through the air and it's path can be described by a (mountain) parabola.

So lets see after how many second (x) the height = 0 once again.

f(x) = 8x-2x^2

f(x) = 0

8x - 2x^2 = 0

Try to write the formula in two terms

-2x * (x - 4) = 0

When a product of two or more terms equals zero, then at least one of the terms must be zero.

Now solve each term = 0 separately, meaning, solve as many equations as there are terms in the product.

Any solution of term = 0 solves product = 0.

Solve the first term:

-2x = 0

Multiply left an right from the = singn with the factor -1 gives this outcome:

2x = 0

x = 0

Solve the second term:

x-4 = 0

x = 4

Result at time x = 4 seconds the soccer ball hit the ground.

x = 4

x = 0

5 0
3 years ago
Does this table show a proportional relationship? If so, what is the constant of proportionality.
lilavasa [31]

Answer:

yes as x increases by 10, y increased by 2

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3 years ago
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