2. Which of the following is an equation? A. y/9 - 3
B. 9 - 2
C. y/9 = 3
D. 7 + y

Answers

Answer 1

Answer: An equation is something with a = sign btw and it’s C because it’s the only one with the = sign

Related Questions

What is the answer too 6+3=x-8?
Give me the answer now
Assume that, on average, healthy young adult’s dream 90 minutes each night, as inferred from a number of measures, including rapid eye movement (REM) sleep. An investigator wishes to determine whether drinking coffee just before going to sleep affects the amount of dream time. After drinking a standard amount of coffee, dream time is monitored for each of 28 healthy young adults in a random sample. Results show a sample mean, X, of 88 minutes and a sample standard deviation, s, of 9 minutes. (a) Use t to test the null hypothesis at the .05 level of significance (b) If appropriate (because the null hypothesis has been rejected), construct a 95 per-cent confidence interval and interpret this interval
(G1) The distance from Flagstaff Arizona toTucson Arizona is 260 miles. Express thisdistance in meters.A. 418,418 metersB. 419,000 metersC. 126,200 metersD. 260,000 meters
If three out of every fourteen trick-or-treaters that came to your house last Halloween were dressed as pirates, what proportion of trick-or-treaters were not dressed as pirates?

All of the points in the picture are on the same line.Find the values for "a" and "b". Explain your reasoning.

Answers

Answer:

I don’t know

Step-by-step explanation:

Go ask your teacher please help me

With this What is a linear function in the form y= mx + b for the line passing through (4.5, -4.25) with y-intercept 2.5?

neksksmskwkmsm

skjsksmsms

6 X 9 =
6 X (5 + 4)
6 X 9 = (6 X 5) + (6 X 4)
6 X 9 =
6 X 9 =
54

Answers

You gave us the answer it will be 54.

Answer:

Step-by-step explanation:

9(6)=54

6(9)=54

54=(30)+(24) 54=54 so it is true

9x6=54

An ANOVA procedure is used for data obtained from four populations. Four samples, each comprised of 30 observations, were taken from the four populations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are _____.

Answers

Answer:

Step-by-step explanation:

Given that an ANOVA procedure is used for data obtained from four populations. Four samples, each comprised of 30 observations, were taken from the four populations.

Hence total observations are 30*4 =120

No of groups = 3

Hence numerator df = 3-1 =2

Now total degrees of freedom = 120-1 =119

So denominator degrees of freedom = 119-2 = 117

Thus F statistic will have numerator as 2 degrees of freedom and denominator as 117 degrees of freedom.

In a study of plant safety, it was found that the time it took for machine operators to react to a warning light was normally distributed with a mean 1 second and standard deviation 0.3 second. Suppose a warning light visible to 4 operators goes on. What is the probability that the average (mean) reaction time of the 4 operators exceeds 1.25 seconds?

Answers

Answer:

4.75% probability that the average (mean) reaction time of the 4 operators exceeds 1.25 seconds.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , a large sample size can be approximated to a normal distribution with mean $\mu$ and standard deviation $(\sigma)/(√(n))$

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = (X - \mu)/(\sigma)$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 1, \sigma = 0.3, n = 4, s = (0.3)/(√(4)) = 0.15$

What is the probability that the average (mean) reaction time of the 4 operators exceeds 1.25 seconds?

This is 1 subtracted by the pvalue of Z when X = 1.25. So

$Z = (X - \mu)/(s)$

$Z = (1.25 - 1)/(0.15)$

$Z = 1.67$

$Z = 1.67$ has a pvalue of 0.9525.

So there is a 1-0.9525 = 0.0475 = 4.75% probability that the average (mean) reaction time of the 4 operators exceeds 1.25 seconds.

Three less than the square of the quotient of a number and five

Answers

Look for the word "Is" first - this is where your "=" goes. (In your problem, it actually says "is equal to".)

So now you know you have = 9.

The next key word on the left is "quotient" - that means divide. It says "quotient of a number and 5" - so we'll divide an unknown number (y in your problem) by 5.

Three less than means subtract 3 from that quotient.

So you need to start with the quotient: y/5 - 3 = 9.

hope it helps!

Complete the table. Adults Children
8 1
16 2
24 A
B 4