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stellarik [79]
3 years ago
5

A bag contains 4 red marbles, 3 blue marbles and 7 green marbles. If three marbles are drawn out of the bag, what is the probabi

lity, to the nearest 10th of a percent, that all three marbles drawn will be green?
Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer:

1/2

Step-by-step explanation:

Ok so we have 4R 3B and 7G

Adding the marbles will give us a sum of 14 so therefore the probability of pulling 3 green marbles will be 7/14 and we can simplify that to 1/2

Have a great day!

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The hypotenuse of a 45 -45 -90 triangle measures 128 cm what is the length of one leg of the triangle
erma4kov [3.2K]
This is an isosceles triangle. The definition of an isosceles triangle is a triangle with at least two congruent sides and angles. If 2 angles on a triangle are congruent (in this case 45 and 45 are two congruent angles) then triangle is isosceles. Therefore the two sides of triangle will be congruent. We know that the triangle is a right triangle because it has a hypotenuse. If a triangle has a hypotenuse then it's a right triangle. We can apply the Pythagorean theorem: a^2 + b^2 = c^2
A and B are the legs and C is the hypotenuse.
We can plug C in the equation:
a^2 + b^2 = 128
What do we know about the legs of the isosceles triangle? They are congruent so a and b have to be equal. From here it's simply guess and check. Will 8 work?
8^2 + 8^2 = 128
64 + 64 = 128
128=128
Yes the value 8 works so the length of two legs of the triangle is 8.
4 0
4 years ago
Read 2 more answers
What is an equation of the line with slope 5 and y-intercept 8?
jeka94

Answer:

y=5x+8

Step-by-step explanation:

You need have the slope-intercept formula:

y=mx+b

m=slope

b=y-intercept

You replace the m and b with the slope and y-intercept which is 8

y=5x+8

Hope this helps!

8 0
3 years ago
Find the following function for A
Goshia [24]
F(x) = x+2
g(x) = 2x+1

we \: have \: to \: find \: (fog)(x)
= f(g(x))
=> (fog)(x) = (2x+1)+2
= 2x+3
4 0
3 years ago
Caitlin has a cookie recipe that requires 1.25 pounds of sugar how many grams of sugar does she need
Harman [31]

Answer:

For this answer, you need to do a conversion from pounds to grams. 1 pound is equal to 453.592 or just 453.6 grams if rounding is allowed. You would need to multiply 1.25 pounds to the 453.6 grams which would equal 566.99 grams or if you are rounding then it is 567 grams.

Your final answer is 567 grams of sugar.

7 0
2 years ago
20 Points and markwd brainliest
liberstina [14]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
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