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3 years ago

Which graph can be used to find the solution(s) to x^2-1=3?

Mathematics

2 answers:

olga2289 [7]3 years ago

6 0

First of all, you need to attach images for this one. Second of all, graph it in desmos and compare. Thirdly, whichever looks like this.

BabaBlast [244]3 years ago

6 0

Answer:

Hello there the answer is D

Step-by-step explanation:

You have to look at the graph first.

Since the equation is = 3 you can simply eliminate A,C

So that leaves us with B,D

Then this is how I know graphs is that the line will be horizontal if it’s by its self so the answer would be D

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The number of electoral votes each state is assigned is determined by the size of its population every ten years. The chart show

sattari [20]

Answer:

D. $Q_3=47$

Step-by-step explanation:

We have been given a table that represents the the number of electoral votes California was assigned each decade of the past century. We are asked to find the 3rd quartile of our given data.

The number of votes are: 9, 13, 13, 22, 25, 32, 40, 45, 47, 54, 55.

We will use upper quartile formula to solve our given problem.

$Q_3=\frac{3}{4}*(n+1)^{\text{th term}}$ , where, n represents the number of elements in the data set.

We can see that our data set has 11 data points, so upon substituting n=11 in above formula we will get,

$Q_3=\frac{3}{4}*(11+1)^{\text{th term}}$

$Q_3=\frac{3}{4}*(12)^{\text{th term}}$

$Q_3=3*3^{\text{th term}}$

$Q_3=9^{\text{th term}}$

Now let us count 9th term of our data set. Upon counting our data set from left to right we can see that 9th term of our data set is 47, therefore, 3rd quartile of our given data is 47 and option D is the correct choice.

3 0

3 years ago

Read 2 more answers

Look at the formula for finding the volume of a rectangular prism below.

krek1111 [17]

V = LWH.....to find W, divide both sides by LH
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3 years ago

3. Find a positive and a negative coterminal angle for -260 degrees.

weqwewe [10]

Check the picture below.

8 0

3 years ago

$70 with a 25% discount

stealth61 [152]

70(.25) = 17.25
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2 years ago

Answer the two questions below

STALIN [3.7K]

Answer:

3: No

4: 25

Step-by-step explanation:

3: It won't because not everyone is the same height and there will be variation in the mean height.

4: A larger sample size will give a more accurate representation of the population, where as a sample size of 5 is much more likely to have a higher percentage of outliers, and each outlier matters much more in finding the mean. In a sample size of 25, each outlier matters much less.

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2 years ago