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2 years ago

12

Please Answer ASAP will name brainlest if actual answer is givin

1 answer:

Sever21 [200]2 years ago

3 0

Answer:

-18

-14

6

10

14

Step-by-step explanation:

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Can I have answers for 12 and 13

solniwko [45]

12. To rotate CW 270 degrees, find the points of the original triangle, make the Original X value becomes the new Y value and the new X value is the inverse of the original Y value.

B) to be in the same location as the original, it would be a 360 degree rotation.

13. to rotate 180 degrees mirror the image on the X and Y axis.

B) a 360 degree rotation.

See attached picture:

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4 years ago

Help with cal 2 exercise involving integrals?

zhannawk [14.2K]

$\displaystyle\int\frac{\sqrt{x^2+1}}x\,\mathrm dx=\int\frac{\sqrt{\tan^2B+1}}{\tan B}\sec^2B\,\mathrm dB$

$\tan^2B+1=\sec^2B$

$\sqrt{\sec^2B}=\sec B$ (provided that $\sec B>0$ )

Then

$\dfrac{\sec B}{\tan B}\cdot\sec^2B=\dfrac{\sec^2B}{\tan B}\cdot\sec B$

(just moving around a factor of $\sec B$ )

$\dfrac{\sec B}{\tan B}\cdot\sec^2B=\dfrac{\sec^2B}{\tan^2B}\cdot\sec B\tan B$

(multiply by $\dfrac{\tan B}{\tan B}$ )

8 0

3 years ago

PLEASE HELP!!! A scale drawing of Jerome's living room is shown below: If each 2 cm on the scale drawing equals 6 feet, what are

Sedaia [141]

Answer:

C 24 ft wide, 18 ft deep

Step-by-step explanation:

there are 4 (2) in 8, so 4 x 6 = 24

there are 3(2) in 6, so 3 x 6 = 18

The larger scale drawing will be 24ft x 18 ft

3 0

3 years ago

Read 2 more answers

Find a unit vector that has the same direction as the given vector. 8i ? j + 4k

e-lub [12.9K]

Answer with Step-by-step explanation:

a.Let given vector

a=8i-j+4k

$\mid a\mid=\sqrt{(8)^2+(-1)^2+(4)^2}=9$

By using the formula

Magnitude of a vector= $\sqrt{x^2+y^2+z^2}$

Where x=Coefficient of i

y=Coefficient of j

z=Coefficient of k

Unit vector= $\hat{a}=\frac{a}{\mid a\mid}$

By using the formula

The unit vector= $\hat{a}=\frac{8i-j+4k}{9}=\frac{8}{9}i-\frac{1}{9}j+\frac{4}{9}k$

b.Let vector b=-2i+4j+2k

$\mid b\mid=\sqrt{(-2)^2+4^2+2^2}=2\sqrt 6$

$\hat{b}=\frac{-2i+4j+2k}{2\sqrt 6}$

Length of vector=6

Therefore, the vector in the direction of <-2,4,2> with length 6 is given by = $6\hat{b}=6\times \frac{-2i+4j+2k}{2\sqrt 6}$

The vector in the direction of <-2,4,2> with length 6 is given by = $-\sqrt 6(-i+2j+k)$

c. $\theta=\frac{\pi}{3}$

$\mid v\mid=8$

Let v= $v_x i+v_y j$

$v_x=\mid v\mid cos\theta$

$v_x=8cos\frac{\pi}{3}=8\times \frac{1}{2}=4$

$cos\frac{\pi}{3}=\frac{1}{2}$

$v_y=\mid v\mid sin\theta$

$v_y=8\times sin\frac{\pi}{3}=8\times \frac{\sqrt 3}{2}=4\sqrt 3$

$sin\frac{\pi}{3}=\frac{\sqrt 3}{2}$

Therefore, the vector v in component form= $4i+4\sqrt 3j$

7 0

3 years ago

A graph that is represented by points connected by segments. True or False

tigry1 [53]

$\boldsymbol{Answer}$

$\boldsymbol{The statement "a graph that is represented by points connected by segments" is True}$

$\boldsymbol{Step-by-step explanation}$

Graph is the picture which represents the relation between two parameters.

Infinity values of one entity gives respected value of another entity.

Every graph has methemetical equation. Holding above sentences.

example:

$\boldsymbol{F(X) = Y}$

$\boldsymbol{X = Y^{2} (pyarabola)}$

Etc.

8 0

3 years ago