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3 years ago

X = y 2 - 1

2 answers:

7 0

Your answer would be option B. 2y² - y - 6 = 0. This is because if you were to substitute x = y² - 1 into the equation 2x - y = 4, you would get 2(y² - 1) - y = 4, which expands into 2y² - 2 - y = 4, and then simplifies to 2y² - y - 6 = 0.
I hope this helps!

fenix001 [56]3 years ago

5 0

hello,

X = y 2 - 1

2x - y = 4

Which of the following equations could be the result of using substitution to solve the system?

b. 2y 2 - y - 6 = 0

hope this help

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The measures of the angles of a triangle are shown in the figure below. Solve for x

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X would be 39
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3 years ago

Add. Enter a number only as your answer in the space provided. -4/5 + 4/5

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3 years ago

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$124.05

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3 years ago

The math department of a college has 20 faculty members, of whom 5 are women and 15 are men. A curriculum committee of 4 faculty

Misha Larkins [42]

Answer:

a) Therefore, exists 155 ways.

b) Therefore, exists 4845 ways.

c) That is not possible.

Step-by-step explanation:

We know that the math department of a college has 20 faculty members, of whom 5 are women and 15 are men. A curriculum committee of 4 faculty members is to be selected.

a) We calculate how many ways are there to select the committee that has more women than men

$C^5_4\cdot C^{15}_0+C^5_3\cdot C_1^{15}=5\cdot 1+ \frac{5!}{3!(5-3)!}\cdot 15=5+150=155$

Therefore, exists 155 ways.

b) We get:

$C_4^{20}=\frac{20!}{4!(20-4)!}=4845$

Therefore, exists 4845 ways.

c) That is not possible.

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4 years ago

Pierre had $42 before he paid his club dues. Evaluate the expression 42 − d for d = 25 to find how much money Pierre had left af

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Answer:

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This is simply stated as a function.

We can rewrite this problem out as --> f(d) = -d + 42

If we simply say that he spent d, the problem states that d is equivalent to 25.

So the function looks like this --> f(d) = -25 + 42

Therefore your answer becomes --> f(d) = 17

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3 years ago