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3 years ago

How was your day?! Mine was awesome now it’s your turn to tell me!

Mathematics

2 answers:

mojhsa [17]3 years ago

5 0

It was okay so far ! Thank you :))) just another normal day but that’s good to hear !

Gelneren [198K]3 years ago

3 0

My day was good lol thanks for askinggg

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HELP WHAT'S THE DISTANCE FOR THIS QUESTION?

Digiron [165]

Step-by-step explanation:

200...............................

8 0

3 years ago

Which one of the triangles shown is the image of the other triangle after dilation?What are the coordinates of the center of dil

Tanya [424]

Answer:

a) ΔF'G'H' is the image of ΔFGH

b)Center of dilation (7,-1)

c) Scale factor: $\frac{1}{2}$

Step-by-step explanation:

Question a

Since the smaller triangle is named F'G'H', it means that, it is the image of triangle FGH.

Question B.

To find the center of dilation, draw straight lines through any two corresponding points.

The straight lines will meet at (7,-1).

This is called the center of dilation.

See graph in attachment.

Question c

The scale factor of the dilation is given by;

$k=\frac{|F'G'|}{|FG|}$

$k=\frac{\sqrt{(4-5)^2+(1-5)^2}}{\sqrt{(3-1)^2+(3-11)^2}}$

$k=\frac{\sqrt{1+16}}{\sqrt{4+64}}$

$k=\frac{\sqrt{17}}{\sqrt{68}}$

$k=\frac{\sqrt{17}}{2\sqrt{17}}$

$k=\frac{1}{2}$

7 0

3 years ago

A circle has an area of 78.5 square inches. What is the diameter of the circle?

Vladimir [108]

We have to know the formula to finding the area of a circle. Since the area is clearly rounded, we can use 3.14 for pi.
R^2•3.14=78.5
Let’s divide both sides by 3.14.
R^2=25
5•5
5
So the radius is 5. The diameter is double the radius. The diameter of the circle is 10.

8 0

3 years ago

I need help with these two answers please :/

4vir4ik [10]

Rise over run is -2/4 or simplified as -1/2
The second one is
$\frac{1 - 3}{4 - 0} = \frac{ - 2}{4}$

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3 years ago

For every 23 sodas,8 of them are sugar free.What is the ratio of sugar free soda to soda with 2 sugars

Trava [24]

Answer:2:5

Step-by-step explanation:

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3 years ago