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4 years ago

5

If the pile contains only 15 quarters but at least 30 of each other kind of coin, how many collections of 30 coins can be chosen

?

1 answer:

klio [65]4 years ago

6 0

<span>My answer to your question would be: C(33,3)-C(17,3). </span>I hope that this is the answer that you were looking for and it has helped you.

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8090 [49]

Answer:

D. x=(1/6)y^2

Step-by-step explanation:

D. x=(1/6)y^2

3 0

2 years ago

Help with this question plz

solmaris [256]

Answer:

804.2 meters³

Step-by-step explanation:

To find the volume of a cylinder, you multiply the height by the area of the base (which is πr²), so the equation is <em>V = hπr²</em>.

We can plug in out givens: <em>V = 16*π*4²</em>. Simplifying this gives us <em>V = 256 π meters³</em> which is approximately 804.2 meters³.

4 0

3 years ago

AD¯¯¯¯¯ , BD¯¯¯¯¯ , and CD¯¯¯¯¯ are angle bisectors of the sides of △ABC . BE=12 m and BD=20 m

evablogger [386]

Since triangle BDE is right, we can check it for special rules: BD is hypotenuse = 20, and BE = 12, both divisible by 4: get 5 and 3... so it's a 3-4-5 special right triangle, the 4×4 = 16 m for side DE.
Since AD bisects angle A, I think then side DG should be congruent with DG. So then
DG = 16 m

5 0

4 years ago

Joel wants to fence off a triangular portion of his yard for his chickens. The three pieces of fencing he haas to use are 8 feet

Sedaia [141]

No, it will not be able to make a right triangle.

<em><u>Solution:</u></em>

Given that,

Joel wants to fence off a triangular portion of his yard for his chickens.

The length of three peices of fencing are 8 feet , 15 feet and 20 feet

For making it a right triangle it must satisfy the "Pythagorus theorem"

Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

For a right angled triangle with sides a, b, c

$c^2 = a^2+b^2$

Given sides are:

a = 8 feet

b = 15 feet

c = 20 feet

Substituting the values in above formula

$20^2 = 8 ^2+15^2\\\\400 = 64 + 225\\\\400\neq 289$

Since the pythogoras formula is not satisfied, the given sides cannot form a right angled triangle

Thus , No, it will not be able to make a right triangle.

7 0

3 years ago

5. When Gisselle decided to stop eating junk food, she started saving more of her allowance to buy a larger bicycle. She managed

MA_775_DIABLO [31]

Answer:

She would've had 48 dollars by then, so she's short by 2 dollars

8 0

4 years ago