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3 years ago

Write the slope-intercept form (y=mx+b) of the equation of the line given the slope and y-intercept.

Mathematics

1 answer:

adell [148]3 years ago

3 0

Answer:

Step-by-step explanation:

y = mx + c

y = -½x + 1

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Determine the projection of w onto u.

irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

$u=9i-6j$

$v=-3i-2j$

$w=19i+15j$

We have to find the projection of w on to u.

The project of vector a on b

= $\frac{a\cdot b}{\mid b\mid^2}b$

$w.u=(19i+15j)\cdot (9i-6j)=171-90=81$

$\mid u\mid=\sqrt{x^2+y^2}=\sqrt{9^2+(-6)^2}=\sqrt{117}$

Using the formula

The projection of w on to u

$=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)$

The projection of w on to u=6.2i-4.2j

Hence, option A is true.

4 0

3 years ago

Read 2 more answers

Paul and his neighbors decided to build a fence along his farm. After three hours, they have 15 meters of fencing complete. They

Goshia [24]

Let the be the time in hours, and meters of fencing completed.

We know that After three hours, they have 15 meters of fencing complete, our graph will go from the point (0,0) to the point (3,15). We also know that they decide to take a 2-hour break for lunch and then resume building the fence, so our graph will go from the point (3,15) to the the point (5,15). Finally, After four more hours, they have a fence that is a total of 55 meters long, so the final part of our graph will go from the point (5,15) to the point (9,55)

We can conclude that the graph of t vs y is:

8 0

3 years ago

a boat is trying to cross a river that is 2 miles wide, by going straight across. The speed of the boat is 25 mph, but the curre

vodomira [7]

Answer: It will take the boat 0.11 hour to cross the river

From the original starting point, the boat end up 1.85 miles away from that point.

Step-by-step explanation: Please find the attached file for the solution

4 0

3 years ago

Order the following numbers from least to greatest.<br><br> 0.303, 0.3, 0.033, and 0.33

nlexa [21]

Answer:

0.033, 0.3, 0.303, 0.33

Step-by-step explanation:

0.033

0.3 = 0.300

0.303

0.33 = 0.330

if you ignore the 0. then it is like working with whole numbers :)

3 0

3 years ago

What is the value of the expression -6 3/4 -1 3/12

hoa [83]

Answer:

-8

Step-by-step explanation:

7 0

3 years ago

Write the slope-intercept form (y=mx+b) of the equation of the line given the slope and y-intercept.​

Write the slope-intercept form (y=mx+b) of the equation of the line given the slope and y-intercept.