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3 years ago

Tell how you know when you have found the prime factorazationof a number

Mathematics

2 answers:

ryzh [129]3 years ago

4 0

When you cant simplyfy it anymore

Angelina_Jolie [31]3 years ago

3 0

You wont be able to break it down/ simplify it

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What is 25% of 300? *

Rina8888 [55]

Answer:

Step-by-step explanation:

OF means multiplication!

25 as a decimal is

0.25 x 300 =

8 0

3 years ago

The lines are parallel, find the slope-intercept form of the equation y₂

Artist 52 [7]

Since the lines are parallel, you know that they have the same slope, which is 2. If you look at the coordinate grid you can see that line y_{2} crosses the y-axis at (0, 1), making the y-intercept 1. Now that you know the slope is 2 and the y-intercept is 1, you can piece those into a slope-intercept equation.

y = mx + b where m is the slope and b is the y-intercept

y_{2} = 2x + 1

5 0

4 years ago

Which function is increasing a f(x)=(1/4) bf(x)=0.4)x c. f(x)=4x d. f(x)=(1/2)x

vodomira [7]

We are going to rewrite the functions correctly:
f (x) = (1/4)
f (x) = (0.4) ^ x
f (x) = 4 ^ x
f (x) = (1/2) ^ x
We observe that we have functions of the form:
f (x) = A (b) ^ x
When
b> 1 The function grows
b <1 Function decreases
Therefore, the function that is growing is:
f (x) = 4 ^ x
Answer:
The function that is increasing is:
f (x) = 4 ^ x
option C)

3 0

3 years ago

a random sample of size 200 is drawn from a large population. The population standard deviation is 1.2. The sample mean is 15.8.

Marrrta [24]

Step-by-step Answer:

N=sample size = 200

sigma = population standard deviation = 1.2

s=Sample mean = 15.8

Best estimate of population mean = 15.8

standard error = sigma / sqrt(N)

= 1.2/sqrt(200)

= 0.08485

Therefore

estimate of population mean = 15.8 +/- 0.0848

3 0

4 years ago

The linear function f(x) = 0.9x + 79 represents the average test score in your math class, where x is the number of the test tak

Levart [38]

Given:

The linear function for average test score in your math class is

$f(x)=0.9x+79$

where x is the number of the test taken.

The linear function g(x) in the given table represents the average test score in your science class, where x is the number of the test taken.

To find:

Part A: The test average for your math class after completing test 2.

Part B: The test average for your science class after completing test 2.

Part C: Which class had a higher average after completing test 4?

Solution:

Part A:

We have,

$f(x)=0.9x+79$

Put x=2 in the above function, to find the test average for your math class after completing test 2.

$f(2)=0.9(2)+79$

$f(2)=1.8+79$

$f(2)=80.8$

Therefore, the test average for your math class after completing test 2 is 80.8.

Part B:

From the given table it is clear that g(x) =79 at x=2.

Therefore, the test average for your science class after completing test 2 is 79.

Part C:

Put x=4 in f(x), to find the test average for your math class after completing test 4.

$f(4)=0.9(4)+79$

$f(4)=3.6+79$

$f(4)=82.6$

From the table it is clear that the value of g(x) is increased by 1 as x is increased by 1. So, the value of function g(x) at x=4 must be 1 more than 80.

$g(4)=81$

It is clear that,

$82.6>81$

Therefore, math class had a higher average after completing test 4.

3 0

3 years ago