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2 years ago

PLS HELP

Mathematics

2 answers:

rosijanka [135]2 years ago

5 0

y=7x²-2x-5
y=7x²-7x+5x-5
y=7x(x-1)+5(x-1)
y=(7x+5)(x-1)

Option B

Igoryamba2 years ago

4 0

Answer: y = (x - 1) (7x + 5)

Step-by-step explanation:

y = 7x² - 2x - 5 Use the slip and slide method.

y = x² - 2x - 35 Factor

y = (x - 7) (x + 5) Slide 7 back in, divide -7 by 7 to get -1. Slip 7 into (x + 5).

y = (x - 1) (7x + 5)

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Mice21 [21]

Answer:

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Step-by-step explanation:

Let's recall that the formula of probability is:

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What is the probability that a couple buys a pair of Bananas?

For answering this question, we first need to calculate the probability of buying a first Banana, given that when couples come in to buy a pair of phones, sales of Apricots and Bananas are equally likely:

Probability of buying a first Banana = 1/2

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Now, we can calculate the probability of buying a second Banana, given that the second phone is twice as likely to be a Banana rather than an Apricot.

Probability of buying a second phone = 1

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Solving for x, we have:

x + 2x = 1

3x = 1

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Finally,

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Replacing with the values we know:

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<u>Probability that a couple buys a pair of Bananas = 1/3 or 33.3%</u>

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3 years ago

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Step-by-step explanation:

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