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2 years ago

Can anyone help with the statements and reasons have been on this for a while :/

Mathematics

1 answer:

Bumek [7]2 years ago

4 0

Answer:

statement: 2. both pairs of parallel lines are congruent

reason: 2. def. of a parallelogram

and that should be all you need

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If a 50-inch flat-screen now costs $1200, what will it cost in three years?

Ainat [17]

Twelve hundred times three equals 3600 so in 3 years it will cost 3600

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3 years ago

What is the volume of the square pyramid? 11cm and 11cm

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1331 feet3

Step-by-step explanation:

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2 years ago

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What is the equation of this graph? Please answer this I am soo stuck.

OLEGan [10]

Answer:

y = 8x + 50

Step-by-step explanation:

Use (0,50) and (10,130)

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2 years ago

Sixty-eight percent of adults in a certain country believe that life on other planets is plausible. You randomly select five adu

Pavlova-9 [17]

Answer:

Mean = 3.4

Variance = 1.088

Standard deviation = 1.0431

Step-by-step explanation:

$P=0.68\\ \\N=5$

The mean of a binomial distribution with parameters N (the number of trials) and p (the probability of success for each trial) is $m=N\cdot p$

Thus,

$m=5\cdot 0.68=3.4$

The variance of the binomial distribution is $s^2=Np(1-p)$ , where $s^2$ is the variance of the binomial distribution, so

$s^2=5\cdot 0.68\cdot (1-0.68)=3.4\cdot 0.32=1.088$

The standard deviation $s$ is the square root of the variance $s^2,$ so

$s=\sqrt{1.088}\approx 1.0431$

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2 years ago

What is the formula for slope-intercept form?

Ipatiy [6.2K]

Answer:

y = mx+b

Step-by-step explanation:

The slope intercept formula for a line is

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

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2 years ago

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