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Sauron [17]
3 years ago
14

Can someone plz help me with this one problem!!! I’m being timed!

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
3 0

Answer: Yes i think so put yes

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Solve for x: (x+a)(x-b) = x^2 -1 <br><br> How do I solve this ?
Sveta_85 [38]

You must factor.

x^2-1=(x+1)(x-1)

The factored form is equal to the assigned form.

(x+1)(x-1)=(x+a)(x-b)

Values a, b correspond to the factored 1, -1.

Value of x however remains unknown. But we can change that.

Given factored result,

(x+1)(x-1)

We can set expression equal to 0 then find such x that when added with number a or b results with 0.

(x+1)(x-1)=0

Hence x has 2 solutions.

x+1=0\Rightarrow\boxed{x_1=-1} \\x-1=0\Rightarrow\boxed{x_2=1}

Hope this helps.

6 0
3 years ago
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What is the value of x?
Yanka [14]

<u>D. 85 ((: </u>

40 + 55 = 95 then you would do 180 - 95 = 85

all triangle equal 180 ((:

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3 years ago
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Nikhil gets paid a 5 percent commission on every pair of shoes that he sells. He earned $1.00 on the last pair of shoes that he
laila [671]

If 5 equals 1

then 100 will equal 20

the shoes are 20 dollars

5 0
4 years ago
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What is α, the probability of a Type I error if the null hypothesis, H0, is: Carmin believes that her chemistry exam will only c
baherus [9]

Answer:

The probability of falling into a type I error, when testing a hypothesis test, consists of:

Probability of rejecting the null hypothesis when, in reality, this hypothesis is true.

Probability of rejecting the null hypothesis when, in reality, this hypothesis is true, is:

Probability of Affirm that Chemistry exam will NOT cover only chapters four and five, since the Chemistry exam will cover only chapters four and five.

That is, alpha is the probability that Carmin decides to study additional chapters, unnecessarily.

Step-by-step explanation:

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The volume for the cube is 245 inches, I’m not sure about the other one though.
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