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3 years ago

(-3,-4) with slope 3

Mathematics

1 answer:

Anvisha [2.4K]3 years ago

5 0

Answer:

Do you want me to graph it

Step-by-step explanation:

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You're playing a game where you defend your village from an orc invasion. There are 333 characters (elf, hobbit, or human) and 5

antiseptic1488 [7]

Answer:

8/15

Step-by-step explanation:

khan acdamy

7 0

3 years ago

If two samples A and B had the same mean and standard deviation, but sample A had a larger sample size, which sample would have

Advocard [28]

<h3>Answer: Sample B as it has the smaller sample (choice #4)</h3>

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Explanation:

Recall that the margin of error (MOE) is defined as

MOE = z*s/sqrt(n)

The sample size n is located in the denominator, meaning that as n gets bigger, the MOE gets smaller. The same happens in reverse: as n gets smaller, the MOE gets bigger.

Put another way, a small sample size means we have more error because small samples mean they are less representative of the population at large. The bigger a sample is, the better estimate we will have of the parameter.

We are told that "sample A had a larger sample size" indicating that sample A has a more narrow confidence interval.

Therefore, sample B would have a wider confidence interval.

This is true regardless of what the confidence level is set at.

7 0

3 years ago

A countrys population in 1990 was 145 million. In 1998 it was 151 million. Estimate the population in 2015 using the exponential

alexandr402 [8]

Answer:

The population in 2015 will be 165 million.

Step-by-step explanation:

The exponential growth formula is given by:

$f(t) = a(1 + r)^{\Delta t}$

Where:

a: is the initial population

r: is the rate of increase

Δt: is the time

With the initial information we can find the rate:

$151 = 145(1 + r)^{1998-1990}$

Using logarithm:

$ln(151) = ln(145) + 8[ln(1 + r)]$

$ln(1 + r) = \frac{ln(151) - ln(145)}{8}$

$ln(1 + r) = 5.0683 \cdot 10^{-3}$

Using exponential:

$e^{ln(1 + r)} = e^{5.0683 \cdot 10^{-3}}$

$r = 5.081 \cdot 10^{-3}$

Now, we can find the estimated population in 2015:

$f(t) = 151(1 + 5.081 \cdot 10^{-3})^{2015-1998}$

$f(t) = 165$

Therefore, the population in 2015 will be 165 million.

I hope it helps you!

5 0

3 years ago

Find the two positive intergers that satisfy the given requirements. The difference of numbers is 90 and the larger number is th

sergiy2304 [10]

Answer:

135

Step-by-step explanation:

x-y = 90

x = 3y

3y - y = 90

2y = 90

y = 45

x = 3×45 = 135

5 0

3 years ago

Solve for x in both triangles

GrogVix [38]

Answer:

Step-by-step explanation:

so for the triangles in 7) they angles are the same in each, that's what the lines are saying, that they are the same angles, and because the angle are the same, the triangles are just a scale of each other we can say that the X side is just a ratio of the other triangle , or

$\frac{6}{12}$ = $\frac{10}{x}$