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3 years ago

PLz help me!

2 answers:

6 0

Start by finding the slope using the slope "formula" $\frac{y_2-y_1}{x_2-x_1}$ :

$x_2=2 \newline y_2=10 \newline \newline x_1=-3 \newline y_1=5 \newline \newline \frac{10-5}{2-(-3)}=1$

Now, write y=mx+b, substituting the value you found above (the slope) for m:

$y=(1)x+b \text{ or } y=x+b$

Now, substitute one of the given points for x and y to solve for b. Let's use (2,10):

$y=x+b \newline 10=2+b \newline b=8$

Now, put it all together:

$y=x+8$

That's the equation of the line!

kipiarov [429]3 years ago

5 0

Slope = (10 - 5) / (2 + 3) = 1

Therefore, y = x + b

At point (2, 10)

10 = 2 + b
b = 8

Therefore : y = x + 8

Answer: y = x + 8 (Answer A)

You might be interested in

A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed the l

lesya692 [45]

Answer:

The probability that a call last between 4.2 and 4.9 minutes is 0.4599

Step-by-step explanation:

Let X be the length in minutes of a random phone call. X is a normal distribution with mean λ=4.2 and standard deviation σ=0.4. We want to know P(4.2 < X < 4.9). In order to make computations, we will use W, the standarization of X, given by the following formula

$W = \frac{X-\mu}{\sigma} = \frac{X-4.2}{0.4}$

We will use $\phi$ , the cummulative distribution function of W. The values of $\phi$ are well known and the can be found in the attached file

$P(4.2 < X < 4.9) = P(\frac{4.2-4.2}{0.4} < \frac{X-4.2}{0.4} < \frac{4.9-4.2}{0.4}) = P(0 < W < 1.75) = \\ \phi(1.75) - \phi(0) = 0.9599-0.5 = 0.4599$

We conclude that the probability that a call last between 4.2 and 4.9 minutes is 0.4599

Download pdf

7 0

3 years ago

If 4sintheta = -3, solve for theta given 0°>_theta>_360°

Soloha48 [4]

Answer:

311.41 degrees

Step-by-step explanation:

If 4 sin Ф = -3 and Ф is between 0 and 360 degrees, then we conclude that Ф must be either in Quadrant III or Quadrant IV (because the sine is negative).

Let's assume we're in Quadrant IV. Then sin Ф = opp / hyp = -3/4; that is, the opp side is negative and has length 3, and the hypo is positive 4.

According to the Pythagorean Theorem, (-3)^2 + x^2 = 4^2, or,

x^2 = 16 - 9 = 7.

Then x is either √7 or -√7.

To find the angle Ф, use the inverse sine function:

Ф = arcsin (-3/4). Using a calculator we get the angle -40.59 degrees, which corresponds to (360 degrees - 40.59 degrees), or 311.41 degrees. We can check this by finding the sine of 311.41 degrees; the result is -0.75, which matches "If 4sintheta = -3."

6 0

3 years ago

Joshua walked 14 feet down the hall of his house to get the door he continued in a straight line out the door and across the yar

AleksandrR [38]

Answer:

Joshua walked 48 feet in total.

Step-by-step explanation:

To find the total distance we need to sum every distance that he walked. We have:

- First: Joshua walked down the hall to the door = 14 feet

- Second: He continued in a straight line out the door and across the yard to the mailbox = 24 feet

- Third: He came straight back across the yard and stopped to pet his dog = 10 feet

Hence, the total distance is:

$d_{T} = d_{1} + d_{2} + d_{3} = 14 ft + 24 ft + 10 ft = 48 ft$

Therefore, Joshua walked 48 feet in total.

I hope it helps you!

8 0

3 years ago

Which digit in the following number is the one that determines its precision? 183.6

mote1985 [20]

<span>precision is after the decimal point.

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4 0

3 years ago

Help asap! will award brainly and pls explain!

cluponka [151]

This is a right angle triangle.

So, by Pythagoras theorem,

√(32^2+20^2) = x

or √(1024+400) = x

or √1424 = x

or <em>37.74 = x</em>

3 0

3 years ago