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Orlov [11]
3 years ago
12

If u = <-7, 6> and v = <-4, 17>, which vector can be added to u + 3v to get the unit vector <1, 0> as the resu

ltant vector?
Mathematics
1 answer:
Katarina [22]3 years ago
4 0

Answer:

idk

Step-by-step explanation:

idk

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Cyliner A has a volume of 360 cm^3. Cylinder B has a base and height identical to that of Cylinder B, but leans to the right in
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The volume of cylinder b is same as cylinder A = 360 cm^3
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3 years ago
I just need help on part A
ki77a [65]

Answer:

Part A) see the explanation

Part B) The initial value is 60 meters and the slope is 40 m/min (see the explanation)

Step-by-step explanation:

Part A) see the attached figure with letters to better understand the problem

we know that

If two triangles are similar then the ratio of its corresponding sides is proportional

In this problem

triangles ACD and ABE are similar by AA Similarity Theorem

so

\frac{AE}{AD}=\frac{BE}{CD} ----> equation A

Remember that the slope is equal to divide the change in the y-value by the change in the x-value

so

The slope AB is equal to \frac{AE}{BE}

The slope AC is equal to \frac{AD}{CD}

Rewrite the equation A

\frac{AE}{AD}=\frac{BE}{CD}

\frac{AE}{BE}=\frac{AD}{CD}

therefore

The slope of AB is equal to the slope of AC

Part B)

Let

x ---->the amount of time in minutes

y ----> the depth in meters    

Find the initial value

we know that

The y-intercept or initial value is the value of y when the value of x is equal to zero

In this context the y-intercept is the depth of the shark when the time is equal to zero, so is the initial depth of the shark

Looking at the graph

For x=0

y=60 meters

therefore

The initial value is 60 meters

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

Take two points from the graph

C(0,60) and B(1,100)

substitute    

m=\frac{100-60}{1-0}

m=40\ m/min

That means ---->The depth of the shark increases at the rate of 40 meters per minute                                        

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3 years ago
Help me plsss<br> 25% of __ is 7
aalyn [17]

25% = 25/100

25% of <u>2</u><u>8</u> is 7

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3 years ago
In a certain class of students, there are 8 boys from Wilmette, 4 girls from Winnetka, 10 girls from Wilmette, 5 boys from Glenc
Neporo4naja [7]

Answer:

43.24% probability that the student will be a boy

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

Student being a boy.

8 boys from Wilmette

5 boys from Glencoe

3 boys from Winnetka

So D = 8+5+3 = 16

Total outcomes:

All students

T = 8+4+10+5+3+7 = 37

Probability:

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