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3 years ago

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Mathematics

2 answers:

Elenna [48]3 years ago

8 0

Answer:

oK so:

your slope formula is y = mx + b

m= slope

b= y intercept

knowing this---->

y= 1/3x +b

to find b, you must plug in the given point to your formula: (3,1)

1 = 1/3(3) + b <--- solve b

b = 0 (1/3*3) = 1 -----> move the 1 to the left by subtracting and you

get 0 for b.

your slope formula for the question is: y = 1/3x

use this new formula and plug in each answer choice; if both sides equal to each other, that is your answer!

first choice: (9,3) 3 = 1/3(9)

true!

second choice: (2,0) 0 = 1/3(2)

false!

third choice: (4,2) 2 = 1/3(4)

false!

fourth choice: (4,4) 4 = 1/3(4)

false!

therefore your final answer is (9,3)

hope this helpsss

Arisa [49]3 years ago

4 0

Answer:

(4,4)

Step-by-step explanation:

hope this help

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the equation in slope intercept form of the perpendicular bisector of the given line segment?

andreev551 [17]

Answer:

y = -4x - 6

Step-by-step explanation:

The equation of a line in point-slope form.

$y - y_1 = m(x - x_1)$

is the equation of the line containing point (x1, y1) and having slope, m.

The given point of the perpendicular bisector is (-1, -2), so in this case, x1 = -1, and y1 = -2.

We need the slope of the perpendicular bisector. First we find the slope of the segment. We start at point (-5, -3). We go up 1 unit and 4 units to the right, and we are at another point on the segment. Since slope = rise/run, the slope of the segment is 1/4. The slopes of perpendicular lines are negative reciprocals, so the slope of the perpendicular bisector is the negative reciprocal of 1/4, so for the perpendicular bisector, m = -4.

Now we use the equation above and our values.

$y - y_1 = m(x - x_1)$

$y - (-2) = -4(x - (-1))$

$y + 2 = -4(x + 1)$

$y + 2 = -4x - 4$

$y = -4x - 6$

6 0

3 years ago

The loaves of rye bread distributed to a local store by a certain bakery have an average length of 30 centimeters and a standard

cupoosta [38]

Answer:

79.91% of loaves are between 26.94 and 32.18 centimeters

Step-by-step explanation:

When the distribution is normal, we use 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 question, we have that:

$\mu = 30, \sigma = 2$