When finding 433 - 249 using place value. What do you subtract first?

1 answer:

5 0

You subtract the ones place, then the tens, and lastly the hundreds place. Your answer will be 184 if you are looking for the answer as well.

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Tell whether the equation has one, zero, infinitely many solutions. 3 ( y-2) = 3y - 6

mixas84 [53]

Answer:

infinitely many solutions

Step-by-step explanation:

Hi there !

3(y - 2) = 3y - 6

3y - 6 = 3y - 6 | + 6

3y = 3y

true ∀ y ∈ R

Good luck !

4 0

4 years ago

Read 2 more answers

What is the basic difference between the lines y = x and y = -x? (LINEAR FUNCTIONS)

kirill [66]

Answer:

y = x goes through the origin and only goes through quadrant I and III. y = -x is perpendicular to y=x and goes through the origin and quadrant II and III.

Step-by-step explanation:

5 0

3 years ago

A consumer group is interested in estimating the proportion of packages of ground beef sold at a particular store that have an a

snow_tiger [21]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.05}{1.96})^2}=384.16$

And rounded up we have that n=385

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{\hat p(1-\hat p)}{n}})$

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by: