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3 years ago

Which is a perfect square? 6’1 6’2 6’3 6’5

Mathematics

2 answers:

iren [92.7K]3 years ago

8 0

Answer:

6'2

Step-by-step explanation:

KIM [24]3 years ago

4 0

6’3 is the answer I believe

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Pls ANSWER THIS ASAP will mark Brainliest

Crazy boy [7]

Answer:(1) 33% (2) 27% (3) 33% (4) 48% (5) 33% (6) 35% (7) there is a difference because theoretical is statistics and logistics while experimental probability is randomized as and answer

Step-by-step explanation: you have three options of you two coins to land so if you were to divide that by 100 you would get .333333 so on and so forth and putting that to percent is 33% then on the experimental probabilities it was the number of times it landed divided by 100

4 0

3 years ago

Forgot how to do this pls help

Natali5045456 [20]

Answer:

the equation is 10x+50=120

the rate of change is 10x (time)

the initial value is 50

the total value is 50

he will need to save for 7 weeks

Step-by-step explanation:

3 0

3 years ago

The output from a statistical computer program indicates that the mean and standard deviation of a data set consisting of 200 me

lesya [120]

Answer:

The limit that 97.5% of the data points will be above is $912.

Step-by-step explanation:

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:

$Z = \frac{X - \mu}{\sigma}$

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:

$\mu = 1500, \sigma = 300$

Find the limit that 97.5% of the data points will be above.

This is the value of X when Z has a pvalue of 1-0.975 = 0.025. So it is X when Z = -1.96.

$Z = \frac{X - \mu}{\sigma}$

$-1.96 = \frac{X - 1500}{300}$

$X - 1500 = -1.96*300$

$X = 912$

The limit that 97.5% of the data points will be above is $912.

6 0

3 years ago

Find the slope of the following line please thank you.

defon

Answer: Slope is 3

Step-by-step explanation:

4 0

3 years ago

Solve the equation 3^(2x) -4*3^(x+1) + 27 = 0. use rules of exponents to change 3^(x+1)

Leviafan [203]

Answer:

$\huge\boxed{x=1\ \vee\ x=2}$

Step-by-step explanation:

$3^{2x}-4\cdot3^{x+1}+27=0\\\\\text{use}\ (a^n)^m=a^{nm}\ \text{and}\ a^n\cdot a^m=a^{n+m}\\\\\left(3^x\right)^2-4\cdot3^x\cdot3^1+27=0\\\\\left(3^x\right)^2-12\cdot3^x+27=0\\\\\text{substitute}\ 3^x=t>0\\\\t^2-12t+27=0\\\\t^2-3t-9t+27=0\\\\t(t-3)-9(t-3)=0\\\\(t-3)(t-9)+0\iff t-3=0\ \vee\ t-9=0\\\\t-3=0\qquad\text{add 3 to both sides}\\\boxed{t=3}\\\\t-9=0\qquad\text{add 9 to both sides}\\\boxed{t=9}$

$\text{We return to substitution:}\\\\3^x=t\\\\3^x=3\ \vee\ 3^x=9\\\\3^x=3^1\ \vee\ 3^x=3^2\\\\\boxed{x=1}\ \vee\ \boxed{x=2}$

4 0

3 years ago