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Elina [12.6K]
3 years ago
5

Alejandro made an error in the steps below when determining the equation of the line that is perpendicular to line 4x - 3y = 8 a

nd passed through the point (3,-2)
Mathematics
1 answer:
Ronch [10]3 years ago
5 0

 

Hello:<span>
the equation is : y = ax+b
the slope is a : a×(4/3) = -1......( perpendicular to a line with a slope of   4/3)            because :     4x-3y =8...y=(4/3)x-8/3    )     </span>

<span>
a = -3/4         y=(-3/4)x+b
the line that passes through (3, -2) :- 2 = (-3/4)(3)+b
b =1/4
<span> the equation is :  y  = (-3/4)x+1/4</span></span>

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Please help!!!!!!!!!!!!!!!!!!!!
Rama09 [41]

Answer:

a)smaller b)equivalent

Step-by-step explanation:

greater because the median height of the indoor plant is 1 cm whereas the full sunlight plant's is 2.5 cm

equivalent because  the ratio of growth is limited due to natural circumstance's (standardization)

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A
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Answer:

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Read 2 more answers
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equa
aleksley [76]

Answer: 0.5467

Step-by-step explanation:

We assume that the test scores for adults are normally distributed with

Mean : \mu=100

Standard deviation : \sigma=20

Sample size : = 50

Let x be the random variable that represents the IQ test scores for adults.

Z-score : z=\dfrac{x-\mu}{\sigma}

For x =85

z=\dfrac{85-100}{20}\approx-0.75

For x =115                                                                                                                                            

z=\dfrac{115-100}{20}\approx0.75

By using standard normal distribution table , the probability the mean of the sample is between 95 and 105 :-

P(85

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7 0
3 years ago
How do you do this problem? Simple and concise explanation please! TOP ANSWERERS!!!!
charle [14.2K]

Answer:

Just B and C

Step-by-step explanation:

Reduce this to the lowest amount possible.

log(3abc/6a^2b) = 2

=================

log(c/2a)  = 2

c/2a = 10^2

c = 2a * 100

c = 200a

This one is also correct.

=================

The rest are just incorrect.

There is only 1 answer that works and that is B.

C is close, but it is not correct.

D is backwards. B is the right way and D is the upside down of B.

E and F are just not the way to handle logs. Subtracting logs means division, not multiplication and not 1 log.

=================

4 0
4 years ago
Find the equation of the line that passes through the given points. Write the equation in slope-intercept form.
nordsb [41]

Step-by-step explanation:

m=(y1-y)/(x1-x2)

m=(3-(-4))/(-4-(-2))

m=7/-2=-7/2

y=mx+c

y=-7/2x+c

4 0
3 years ago
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