Answer:
8x+4
Step-by-step explanation:
4(2x+1)=8x+4
Answer:
8x + 4
Step-by-step explanation:
4 x 2x = 8x
4 x 1 = 4
therefore its:
8x + 4
Brainliest is appreciated
5 of the text is an article about
endangered species, what fraction of the cover page is the article about endangered species
Answer:
The answer is 0.15
Step-by-step explanation:
In this 2/5 of 3/8 is about endangered species
Therefore to obtain the answer we need to multiply the two fractions
2/5 × 3/8
Fraction of the cover page about endangered species is therefore = 2/5 × 3/8
= 0.15
Answer:
The answer is 0.7036.
Step-by-step explanation:
Check the attached file for the computations.
The probability that the mean life of a random sample mean elongation is between .0585 in. and .0605 in. is 70.57%
Z score is used to determine by how many standard deviations the raw score is above or below the mean.
It is given by:
z = (raw score - mean) / (standard deviation÷√sample)
Mean = 0.06, standard deviation = 0.008, sample = 100.
For x = 0.0585:
z = (0.0585 - 0.06)/ (0.008 ÷√100) = -1.88
For x = 7.2:
z = (0.0605 - 0.06)/ (0.008 ÷√100) = 0.623
P(-1.88 < z < 0.63) = P(z < 0.63) - P(z < -1.88) = 0.7357 - 0.03 = 0.7057
The probability that the mean life of a random sample mean elongation is between .0585 in. and .0605 in. is 70.57%
Find out more on z score at: brainly.com/question/25638875
Answer:
9:04
Step-by-step explanation:
21 - 17 = 4
it's using subtraction
Answer:
9:04
Step-by-step explanation:
9:21 - 17 minutes = 9:04
Answer:
−8x^2 + 10x
Step-by-step explanation:
Answer:
a
The null hypothesis is
$98
The alternative hypothesis is
$98
b
test statistics
c
The the result of the test statistics is significant
Step-by-step explanation:
From the question we are told that
The population mean is $98
The standard deviation is $11
The sample size is
The sample mean is $100
The level of significance is % = 0.05
The null hypothesis is
$98
The alternative hypothesis is
$98
Now the critical values for this level of significance obtained from critical value for z-value table is
The test statistics is mathematically evaluated as
substituting values
Looking at we see that hence the we fail to reject the null hypothesis
hence there is no sufficient evidence to conclude that the mean weekly food budget for all households in this community is higher than the national average.
Thus the the result is significant
there are 18 ways to add four positive numbers to get 22