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Komok [63]
3 years ago
12

WHAT IS 78,600 ROUND TO THE NEAREST THOUSAND

Mathematics
1 answer:
tino4ka555 [31]3 years ago
5 0
79,000 is the answer bc u look at the number on the right and if it is greater than 5 u add 1
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4/5x+15-1/x+3=3/5<br> Please solve for x as a fraction!
Pepsi [2]

Answer:

1/2

Step-by-step explanation:

8 0
3 years ago
What is the slope below?? Please answer quickly! Due tonight.
rosijanka [135]
1.25 is the slope 5/4 rise over run
4 0
2 years ago
What are the slope and y-intercept of the graph of this equation?
schepotkina [342]

Answer:

slope = y = 1/2

y-intercept = b = -3

Step-by-step explanation:

slope intercept equation:

y = mx + b----->(equation 1)

m is slope

b is y-intercept

y = 1/2x - 3----->(equation 2)

Compare (equation 1) and (equation 1)

slope = y = 1/2

y-intercept = b = -3

3 0
3 years ago
We are interested in determining whether or not the variances of the sales at two small grocery stores are equal. A sample of 21
katen-ka-za [31]

Answer:

F=\frac{s^2_A}{s^2_B}=\frac{28.284^2}{20^2}=1.99996

Step-by-step explanation:

Data given and notation  

n_A = 21 represent the sampe size for A

n_B =16 represent the sample size for B

s_A = 28.284 represent the sample deviation for A

s_B = 20 represent the sample deviation for B

\alpha represent the significance level provided

F test is a statistical test that uses a F Statistic to compare two population variances, with the sample deviations s1 and s2. The F statistic is always positive number since the variance it's always higher than 0. The statistic is given by:

F=\frac{s^2_1}{s^2_2}

Solution to the problem  

System of hypothesis

We want to test if we have the same variation, so the system of hypothesis are:

H0: \sigma^2_A = \sigma^2_B

H1: \sigma^2_A \neq \sigma^2_B

Calculate the statistic

Now we can calculate the statistic like this:

F=\frac{s^2_A}{s^2_B}=\frac{28.284^2}{20^2}=1.99996

8 0
4 years ago
The function f(x) = 60x + 4 represents the amount of money Mike earns making custom tables. The function g(x) = 2x - 4 represent
siniylev [52]

Answer:

$244

Step-by-step explanation:

f(x) = 60x + 4 and g(x) = 2x-4

We are told to find f(g=4), when Mike makes four tables.

We have to put replace x in f(x) with the value g(x) when x is 4, like this:

f(x) = 60x + 4 // Replace x with g(x) = 2x-4

f(x) = 60(2x-4) + 4

f(x) = (120x - 240) + 4 // Solve

f(x) = (120*4 - 240) +4 // They tell us x=4

f(x) = 480 - 240 + 4 = $244

3 0
3 years ago
Read 2 more answers
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