3 years ago

Question 5(Multiple Choice Worth 5 points)

Mathematics

2 answers:

kenny6666 [7]3 years ago

7 0

25.12 cubic inches is the correct answer :)

Dmitry [639]3 years ago

5 0

The correct answer is 25.12 cubic inches

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A car traveled 300 miles on 15 gallons of gas. How many miles does the car travel on 1 gallon of gas?

katrin [286]

Answer:

20 miles for 1 gallon.

Step-by-step explanation:

20 x 15 = 300

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2 years ago

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Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

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3 years ago

Can some one help plzz

fiasKO [112]

It is C. r=6

3 * 6 = 18 + 2 =20

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3 years ago

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Plz answer the below question u will be awarded brainliest and will get points too..

brilliants [131]

Answer:

x=0.6241

Step-by-step explanation:

Square both sides and end up with

75.24+x=75.8641

isolate x

x=75.8641 - 75.24

x=0.6241

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3 years ago

In the diagram, which two angles are alternate interior angles with angle 14?

Vinil7 [7]

Angle 4 and Angle 12

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3 years ago