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qwelly [4]
2 years ago
9

Suppose you have 5 quarters and 5 pennies in your wallet. You select two coins from your wallet without looking. If the first co

in is not replaced, what is the probability of selecting a quarter both times?
Mathematics
2 answers:
Flauer [41]2 years ago
8 0

Answer:

50% it can be like you can pick 2 pennies you don't know that is why you have to look

kakasveta [241]2 years ago
5 0

Answer:

4/5

Step-by-step explanation:

If you have 5 quarters and 5 pennies the fraction would be... 5/5. If you take away two coins you would most likely take 1 penny and 1 quarter, which leaves 4 quarters. Therefore the answer is 4/5.

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>:</em><em>)</em>

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Which expression is the radical form of m^2.5?
Sergeeva-Olga [200]

Answer:

m^(5/2)

Step-by-step explanation:

Please mark brainliest and have a great day!

8 0
3 years ago
~!!!! HELPPPPPPPPP IM IN 7Th GRADE LEARNING 9TH AND 8TH HELP PLEASE !!!!~
Dafna1 [17]

Answer:

Step-by-step explanation:

Plug the point (-1,20) into the equation.

20 = a|-1|+7

13 = a|-1|

13 = a ⋅ 1

a= 13

:::::

(1,20) is another point on the graph.

5 0
2 years ago
Can someone please answer. There is only one problem. There's a picture. Thank you!
AlekseyPX
1540.5 .
V=PI*R^2*H/3=3.14*9.5^2*5.433=1540;5
4 0
2 years ago
For triangle Abc side a=18 angle C=90 and side b=24 find side c to the nearest whole number
ollegr [7]
...
Using the Pythagorean theorem, a² + b² = c², we can solve for 'c'.
We know the length of sides 'a' and 'b', and this is all we really need to know. The angle value of angle 'c' is irrelevant to finding the length of side 'c' (which I'm assuming is the hypotenuse).
18² + 24² = c².
324 +  576 = c².
900 = c². Now find the square root of 900 to get the value of 'c'.
30 = c. <= And there is your answer.

3 0
3 years ago
Help urgent plz!❤️❤️❤️Please please urgently
sleet_krkn [62]

Answer:

Problem 2): \left \{x\, |\,0\leq x\leq 240\,\,\right \}

which agrees with answer C listed.

Problem 3) :  D = (-3, 6]  and R = [-5, 7]

which agrees with answer D listed

Step-by-step explanation:

Problem 2)

The Domain is the set of real numbers in which the function (given by a graph in this case) is defined. We see from the graph that the line is defined for all x values between 0 and 240. Such set, expressed in "set builder notation" is:

\left \{x\, |\,0\leq x\leq 240\,\right \}

Problem 3)

notice that the function contains information on the end points to specify which end-point should be included and which one should not. The one on the left (for x = -3 is an open dot, indicating that it should not be included in the function's definition, therefor the Domain starts at values of x strictly larger than -3. So we use the "parenthesis" delimiter in the interval notation for this end-point. On the other hand, the end point on the right is a solid dot, indicating that it should be included in the function's definition, then we use the "square bracket notation for that end-point when writing the Domain set in interval notation:

Domain = (-3, 6]

For the Range (the set of all those y-values connected to points in the Domain) we use the interval notation form:

Range = [-5, 7]

since there minimum y-value observed for the function is at -5 , and the maximum is at 7, with a continuum in between.

6 0
2 years ago
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