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Marizza181 [45]
3 years ago
5

The coach of a soccer team is holding tryouts and can only take 3 more players. There are 6 players trying out. How many differe

nt groups of 3 players could possibly be chosen?
Mathematics
1 answer:
Elena-2011 [213]3 years ago
5 0

C(6,3)=\dfrac{6!}{3!3!}=\dfrac{4\cdot5\cdot6}{2\cdot3}=20

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Let f(x) = -2x + 7 and g(x) = -6x + 3. Find (f o g) and state its domain.
Vladimir79 [104]

(f\circ g)(x) = -2(-6x+3) + 7 = 12x - 6 + 7 = 12x + 1

The domain is all real numbers as a composition of two linear functions have no restrictions (all linear functions have domain of R)

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Shelly is making an apple pie. She needs 1/2 of a cup of sugar for her pie . How many cups of sugar will she need if she need if
sergejj [24]

Answer: Shelly will need 6 cups of sugar.

Step-by-step explanation:

Multiply 3 by 1/2

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All 4 questions please
scZoUnD [109]

Answer:

  1. π = S/2πrh
  2. v = √2E/m
  3. b = (-7a+c)/2
  4. x =3y-1

Step-by-step explanation:

1.

S = 2\pi rh\\Divide\:both\sides\:of\:the\:equation\:by\:2rh\\\\\frac{S}{2rh} = \frac{2 \pi rh}{2 rh} \\\\\pi = \frac{S}{2rh}

2.

E = \frac{1}{2} mv^2\\\\E = \frac{mv^2}{2} \\\\Cross\:multiply\\\\2E =mv^2\\Divide\:both\:sides\:of\:the\:equation\:by\:m\\\frac{2E}{m} = \frac{mv^2}{m} \\\\\frac{2E}{m} =v^2\\Square\:root\:both\:sides\:of\:the\:equation\\\sqrt{\frac{2E}{m} } = \sqrt{v^2} \\\\\sqrt{\frac{2E}{m} } =v\\\\v =\sqrt{\frac{2E}{m} }

3.

7a+2b =c\\Isolate\:b\\\\2b =c-7a\\2b= -7a+c\\Divide\:both\:sides\:of\:the\:equation\:by \:2\\\frac{2b}{2} =\frac{-7a+c}{2} \\\\b = \frac{-7a+c}{2}

4.

y = \frac{1}{3} (x+1)\\\\y = \frac{x+1}{3}\\\\Cross\:multiply \\3y =x+1\\Isolate \:x\\3y -1=x\\\\x =3y-1

7 0
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What is the value of x? Enter your answer in the box.<br><br><br><br> i need to post graph
kondaur [170]
2x + 2 = 3x - 52
x = 54
4 0
3 years ago
What is y - 4 = -2 (x+7) written in standard form.
motikmotik

Answer:

A

Step-by-step explanation:

Refer to the picture.

Step 1: expand the bracket

Step 2: bring like terms together (e. G. Numbers, algebra like terms)

Step 3: simplify equation

Step 4: rearrange algebraic form to see which order fits the answer.

4 0
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