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3 years ago

What is the value of z in the question sin(4z) = cos(30 + 2z)?

Mathematics

1 answer:

stira [4]3 years ago

8 0

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For what value of the variable : is the value of 9-y twice as much as the value of y?

jolli1 [7]

Y=3 because 9-3=6 and 3*3=6

5 0

2 years ago

Read 2 more answers

Help a little eeeeeeeeeee

ozzi

0.8 or 4/5
Both are correct, but in different form.

Your welcome.

7 0

2 years ago

Identify the transformation that was applied to this boomerang

Marrrta [24]

Answer:

c- translation

Step-by-step explanation:

it just moved a few points down

8 0

2 years ago

Identify a sequence of transformations that maps triangle ABC onto triangle A"B"C" in the image below.

Murljashka [212]

Answer:

The correct option is B.

Step-by-step explanation:

It is given that triangle A"B"C" is the image of triangle ABC after transformation.

From the given figure it is noticed that the point C lies on positive y-axis and point C" lies on negative x-axis.

It means the figure is rotated either counterclockwise 90° or clockwise 270°. The rotation rule is

$(x,y)\rightarrow (-y,x)$

The corresponding sides of image A"B"C" are smaller than the preimage ABC.

$k=\frac{A"B"}{AB}=\frac{3}{6}=\frac{1}{2}$

Since k<0, therefore the transformation shows the reduction. The dilation rule is

$(x,y)\rightarrow (-\frac{1}{2}y,\frac{1}{2}x)$

$A(-3,0)\rightarrow (-\frac{1}{2}(0),\frac{1}{2}(-3))\rightarrow (0,-1.5)$

$B(3,0)\rightarrow (-\frac{1}{2}(0),\frac{1}{2}(3))\rightarrow (0,1.5)$

$C(0,5.2)\rightarrow (-\frac{1}{2}(5.2),\frac{1}{2}(0))\rightarrow (-2.6,0)$

Option B is correct.

4 0

2 years ago

Read 2 more answers

What is the measure of ∅? A. 2.5 π radians B. 2.5 radians C. 4 radians D. 5 radians

natka813 [3]

Answer:

C. 4 radians

Step-by-step explanation:

$20=\frac{\pi (Ctrl.Angle)(5)}{180}$

Ctrl Angle = ∅

∅ = $\frac{(20)(180)}{5\pi } =\frac{3600}{5\pi } =\frac{720}{\pi }$

in radians:

∅ = $\frac{720}{180} =4$

Hope this helps

4 0

1 year ago