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bearhunter [10]

4 years ago

6

Pleassseeee hhheellppp

1 answer:

hichkok12 [17]4 years ago

6 0

Answer:

a). Point A

b). 90°

c). Anticlockwise

Step-by-step explanation:

As it's clear from the picture attached,

Triangle XYZ has been rotated about a point A to form an image X'Y'Z'.

Angle of rotation is 90° about a point A.

a). Point which is the center of the rotation → point A.

b). Angle of rotation → 90°

c). Direction of rotation → Anticlockwise

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The face of a clock has a circumference of 63 in. What is the area of the face of the clock?

ryzh [129]

Answer:

The area of the clock $= 315.41\ inch^{2}$

Step-by-step explanation:

We have been given the face of the clock that is $63\ in$

So that is also the circumference of the clock.

Since the clock is circular in shape.

So $2\pi(r)=63\ inch$

From here we will calculate the value of radius $(r)$ of the clock that is circular in shape.

Then $2\pi(r)=63\ inch =\frac{63}{2\pi} = 10.02\ in$

Now to find the area of the clock we will put this value of (r) in the equation of area of the circle.

Now $\pi (r)^{2}=\pi(10.02)^{2}=315.41\ in^{2}$

So the area of the face of the clock = $315.41\ in^{2}$

6 0

3 years ago

Find the projection of u onto v<br> URGENT HELP

padilas [110]

Given:

Two vectors are:

$u=\left$

$v=\left$

To find:

The projection of u onto v.

Solution:

Magnitude of a vector $v=\left$ is:

$|v|=\sqrt{a^2+b^2}$

Dot product of two vector $v_1=\left$ and $v_2=\left$ is:

$v_1\cdot v_2=a_1a_2+b_1b_2$

Formula for projection of u onto v is:

$Proj_vu=\dfrac{u\cdot v}{|v|^2}v$

$Proj_vu=\dfrac{\left \cdot \left }{(\sqrt{2^2+17^2)^2}}\left$

$Proj_vu=\dfrac{0\cdot 2+6\cdot 17}{4+289}\left$

$Proj_vu=\dfrac{0+102}{293}\left$

On further simplification, we get

$Proj_vu=\dfrac{102}{293}\left$

$Proj_vu=\left$

$Proj_vu=\left$

Therefore, the projection of u onto v is $Proj_vu=\left$ .

3 0

3 years ago

Does anyone know how to solve this 5 and 6

Sveta_85 [38]

5. (2,-6) (-2,6)
6. (4,-1) (-4,1)

7 0

3 years ago

Read 2 more answers

In a certain area, there are 35 houses to 55 businesses. Write the ratio of houses to

ratelena [41]

Answer:

$\frac{7}{11}$

Step-by-step explanation:

Express the fraction as number of houses over number of businesses, that is

ratio = $\frac{35}{55}$

Divide numerator and denominator by 5 for simplest form

ratio = $\frac{7}{11}$

3 0

3 years ago

What does the line 2x-3y=7 look like

fenix001 [56]

2x-3y=7
-3y = -2x+7
y= 2x/3-7/3
slope of 2/3 (rise 2, run 3)
y-intercept of -7/3
Would be a positive line, starting low on left and rising towards right

4 0

3 years ago