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dangina [55]
3 years ago
13

Find the ordered pairs. {Y=(x+1)^2-5 {Y=2x PLEASE HELP!!!

Mathematics
1 answer:
vampirchik [111]3 years ago
6 0

Answer:

\large \boxed{\sf \bf \ \ \text{The solutions are }(2,4) \text{ and } (-2,-4) \ \ }

Step-by-step explanation:

Hello, this is the same kind of question that you have already posted( brainly.com/question/17141820).

<em>I would suggest that you check my previous answer and try to apply the same logic here. When you try it if you have any question please let me know. It will be the more efficient way for you to learn how to solve it by yourself.</em>

<em>As I have already provided details for the previous question I will be more succinct here.</em>

Again we can write y = y and then we have to solve the following.

(x+1)^2-5=2x\\\\x^2+2x+1^2-5-2x=0\\\\x^2-4=x^2-2^2=(x-2)(x+2)=0\\\\x=2 \ \ or \ \ x=-2

The solutions are (2,4) and (-2,-4)

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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Answer:

Their slopes are opposites

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2 years ago
Fifteen SmartCars were randomly selected and the highway mileage of each was noted The analysis yielded a mean of 47 miles per g
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Answer: a. 47 plusminus (1.753*(5 ÷ 3.8730)

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation = 5

n = number of samples = 15

z represents the test statistic

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the test statistic score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 15 - 1 = 14

Since confidence level = 90% = 0.90, α = 1 - CL = 1 – 0.90 = 0.1

α/2 = 0.1/2 = 0.05

the area to the right of z0.05 is 0.05 and the area to the left of z0.05 is 1 - 0.05 = 0.95

Looking at the t distribution table,

z = 1.753

Margin of error = 1.753(5 ÷ 3.8730)

Confidence interval = 47 ± 1.753(5 ÷ 3.8730)

8 0
3 years ago
What is ten multiplied by 2
AnnZ [28]

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Step-by-step explanation:

7 0
3 years ago
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Step-by-step explanation:

The equation of a line in slope- intercept form is

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Here m = - \frac{5}{2} , then

y = - \frac{5}{2} x + c ← is the partial equation

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4 0
3 years ago
Nine times fours is what
wel

Answer:

36

Step-by-step explanation:

9 x 4  =46

5 0
3 years ago
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