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2 years ago

Please help offering All my pts and brainliest answer

2 answers:

4 0

X2-1 I think that's the answer because there's 1 less, 1 take away the x and squared!! hard to explain but that's how I thought about it

Kitty [74]2 years ago

4 0

X^2-1

hope this helps

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|-24 + 12| lolololool

BaLLatris [955]

The answer to the equation is 12.

6 0

2 years ago

Read 2 more answers

A seasonal index for a monthly series is about to be calculated on the basis of three years’ accumulation of data. The three pre

yarga [219]

Answer:

0.684

Step-by-step explanation:

According to the scenario, computation of the given data are as follows

Seasonal index = Average value for July ÷ Average over all months

Where, Average value for July = ( 110 + 150 + 130 ) ÷ 3

= 390 ÷ 3 = 130

And, average over all months = 190

So by putting the value in the formula, we get

Seasonal index = 130 ÷ 190

= 0.684211 or 0.684

Hence, approximate seasonal index for July is 0.684.

6 0

2 years ago

PLEASE HELP ONE QUESTION!!!!!! PLEASEEEEE

In-s [12.5K]

VW=CD since they are congruent figure, so CD=6

7 0

2 years ago

Read 2 more answers

Please help! I will mark as brainliest IF answer is right. <3

pantera1 [17]

Answer:

420/69

Step-by-step explanation:

8 0

2 years ago

1. (Sec. 6.1) In a random sample of 80 components of a certain type, 12 are found to be defective. (a) Give a point estimate for

denis-greek [22]

Answer:

(a) 0.85

(b) 0.7225

Step-by-step explanation:

(a) The point estimate for the proportion of all such components that are not defective is given by the number of non-defective units in the sample divided by the sample size:

$p=\frac{80-12}{80}\\p=0.85$

The proportion is 0.85.

(b) Assuming that the sample is large enough to accurately provide a point estimate for the whole population, this can be treated as a binomial model with probability of success (non-defective part) p = 0.85. Since both components must be non-defective for the system to work, the probability of two successes in two trials is:

$P(x=2) = 0.85^2\\P(x=2) = 0.7225$

An estimate of 0.7225 for the proportion of all such systems that will function properly.

4 0

2 years ago