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kipiarov [429]
2 years ago
7

What is the equation in point slope form of the line that passes through the point (1 , 8) and (2 , 10)?

Mathematics
1 answer:
Natalija [7]2 years ago
8 0
First find slope
(10-8)/(2-1) = 2/1 = 2
Point slope form: y-y1 = m(x-x1)
Answer: y-8 = 2(x-1)
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Weights of cars passing over a bridge part 2<br>​
DaniilM [7]

Step-by-step explanation:

The solution to this problem is very much similar to your previous ones, already answered by Sqdancefan.

Given:

mean,  mu = 3550 lbs (hope I read the first five correctly, and it's not a six)

standard deviation, sigma = 870 lbs

weights are normally distributed, and assume large samples.

Probability to be estimated between W1=2800 and W2=4500 lbs.

Solution:

We calculate Z-scores for each of the limits in order to estimate probabilities from tables.

For W1 (lower limit),

Z1=(W1-mu)/sigma = (2800 - 3550)/870 = -.862069

From tables, P(Z<Z1) = 0.194325

For W2 (upper limit):

Z2=(W2-mu)/sigma = (4500-3550)/879 = 1.091954

From tables, P(Z<Z2) = 0.862573

Therefore probability that weight is between W1 and W2 is

P( W1 < W < W2 )

= P(Z1 < Z < Z2)

= P(Z<Z2) - P(Z<Z1)

= 0.862573 - 0.194325

= 0.668248

= 0.67 (to the hundredth)

6 0
3 years ago
Using L'Hopital's rule, evaluate the limit as x approaches infinity of (sin (8x))/(5x)
sweet-ann [11.9K]

Answer:

45.89

Step-by-step explanation:

This is what is the answer

6 0
3 years ago
Find the perimeter of the triangle.​
PtichkaEL [24]

Answer:

Perimeter of the Triangle

( {x}^{2}  - 5x + 13) + (2 {x}^{2}  - x + 19) + ( {x}^{2}  + 3x + 21) \\ =(1 + 2 + 1) {x}^{2}  + ( - 5 - 1 + 3)x + (13 + 19 + 21) \\ =(4 {x}^{2}  - 3x + 53) \: units

7 0
2 years ago
What does it equal? And how do you know that
zvonat [6]
You can cancel if the top and bottom are both multiplication and they have common factors.

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4 0
3 years ago
Write numbers on the blanks to create a different expression that is equal to (3+4)+5
gizmo_the_mogwai [7]

Answer:

(3+4)+5=12

Step-by-step explanation:

(3 + 4 ) = 7

7 + 5 =

12

5 0
3 years ago
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