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Citrus2011 [14]
3 years ago
12

If A=(3,2) and B=(5,7) be two points , find the unit vector along BA

Mathematics
1 answer:
Alexeev081 [22]3 years ago
5 0
If we were to plot the points on a graph, we could draw a straight lint between them. The question wants us to find the length of this line. We could make a right triangle with this line as the hypotenuse, with an x length of 2(y2-y1) and a y length of 5 (y2-y1). From there we can find the hypotenuse with Pythagorean Theorem: c^2=a^2+b^2. 
c^2=(2)^2+(5)^2
c^2=4+25
C^2=41
c=\sqrt{41}
Decimal approximation: 6.403

Hope this helps!
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Answer:

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Step-by-step explanation:

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Which phrase best describes the translation from the graph y = (x + 2)2 to the graph of y = x2 + 3?
Mashutka [201]

1. Consider the transformation that maps the graph of the function y=(x+2)^2 into the graph of the function y=x^2. This transmormation has a rule:

(x,y)→(x+2,y)

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Answer: correct choice is C.

7 0
3 years ago
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Rearrange the equation so u is the independent variable.<br><br> 4u+8w=-3u+2w4u+8w=−3u+2w
stiv31 [10]

Answer:

Step-by-step explanation:

4u + 8v = -3u + 2v

Solving 4u + 8v = -3u + 2v

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '3u' to each side of the equation. 4u + 3u + 8v = -3u + 3u + 2v

Combine like terms: 4u + 3u = 7u 7u + 8v = -3u + 3u + 2v

Combine like terms: -3u + 3u = 0 7u + 8v = 0 + 2v 7u + 8v = 2v

Add '-8v' to each side of the equation. 7u + 8v + -8v = 2v + -8v

Combine like terms: 8v + -8v = 0 7u + 0 = 2v + -8v 7u = 2v + -8v

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7 0
3 years ago
There are 3 apples, john takes 2, how much are there
sineoko [7]

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1 apple

Step-by-step explanation:

8 0
2 years ago
A $52.50 screen door is on<br> sale for $42. Find the percent<br> of discount on the door.
Sindrei [870]

Answer:

20%

Step-by-step explanation:

<u><em>Given/To Find:</em></u>

<em>A $52.50 screen door is on</em>

<em>sale for $42. Find the percent</em>

<em>of discount on the door.</em>

<u><em>Solve:</em></u>

<em>Formula: Value 1 - Value 2 ÷ Original Value × 100</em>

<em />

<em>Hence we have:</em>

<em>52.50 - 42 = 10.5</em>

<em>10.5 ÷ 52.50 = 0.20</em>

<em>0.20 × 100</em>

<em>=20%</em>

<em />

<em>Check Answer:</em>

<em>52.50 × 20% = 10.5</em>

<em>52.50 - 10.5 = 42</em>

<em>Hence, the percent of discount on the door is 20%</em>

<em />

<u><em>Kavinsky</em></u>

8 0
2 years ago
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