muscrat123
  • muscrat123
@Nnesha can you help me with a few questions?? or anybody else good with math?
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
muscrat123
  • muscrat123
@saseal
anonymous
  • anonymous
yea
muscrat123
  • muscrat123
okay thanks so much

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anonymous
  • anonymous
what is your question?
muscrat123
  • muscrat123
hang on
muscrat123
  • muscrat123
The image below is a triangle drawn inside a circle with center O:Which of the following expressions shows the area, in square inches, of the circle? (π = 3.14) 3.14 · 42 3.14 · 52 3.14 · 5 3.14 · 22
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anonymous
  • anonymous
the diameter of the circle is 8" so the radius is 8/2
muscrat123
  • muscrat123
4
anonymous
  • anonymous
area of circle is 4^2π
muscrat123
  • muscrat123
16 times pi
anonymous
  • anonymous
now lets find the area of the triangle
muscrat123
  • muscrat123
i think we only need to find the circle/
anonymous
  • anonymous
yea
muscrat123
  • muscrat123
so a?
muscrat123
  • muscrat123
In triangle XYZ, z2 = x2 + y2. Which equation is true about the measure of the angles of the triangle? The measure of angle XZY is equal to 90 degrees The measure of angle XYZ is equal to 100 degrees The measure of angle XYZ plus the measure of angle YXZ is equal to 80 degrees The measure of angle XYZ plus the measure of angle YXZ is equal to 70 degrees
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anonymous
  • anonymous
its not in the option
anonymous
  • anonymous
first one is true
muscrat123
  • muscrat123
so a?
anonymous
  • anonymous
this stuff is a right angle triangle thats why it runs with pythagoras theorem
anonymous
  • anonymous
yea
muscrat123
  • muscrat123
A wooden block in the shape of a rectangular pyramid is shown below: If a cross section of the block is cut perpendicular to the base but does not pass through the top vertex, which of the following shapes describes the cross section? Triangle Rectangle Trapezoid Hexagon
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anonymous
  • anonymous
trapezoid
anonymous
  • anonymous
|dw:1438954292309:dw|
muscrat123
  • muscrat123
Triangle ABC with vertices A(4, −6), B(2, −8), and C(−10, 4) is dilated by a scale factor of 2 to obtain triangle A′B′C′. Which statement best describes triangle A′B′C′? It is similar to triangle ABC and has coordinates A′(2, −3), B′(1, −4), and C′(−5, 2). It is similar to triangle ABC and has coordinates A′(8, −12), B′(4, −16), and C′(−20, 8). It is congruent to triangle ABC and has coordinates A′(2, −3), B′(1, −4), and C′(−5, 2). It is congruent to triangle ABC and has coordinates A′(8, −12), B′(4, −16), and C′(−20, 8). there is no picture
anonymous
  • anonymous
imagine it being cut like that
anonymous
  • anonymous
dilation means scaled down so this thing reduced by half in size
anonymous
  • anonymous
congruent means they are equal length in all sides
anonymous
  • anonymous
you should know the answers by now
muscrat123
  • muscrat123
i know that i just dont know how to do it:(
anonymous
  • anonymous
|dw:1438954561117:dw|
anonymous
  • anonymous
now if we scale this down by a factor of 2 we cut down the length of all the sides of all sides by half
muscrat123
  • muscrat123
it is going to be similar bc we r cutting the size down to half
anonymous
  • anonymous
yes similar but not congruent
muscrat123
  • muscrat123
what would be the coordinates?
anonymous
  • anonymous
thats not very important, whats important is that you must know the distance between the points cannot be larger than the original triangle
anonymous
  • anonymous
since this is a multiple choice question you can test it out
anonymous
  • anonymous
divide the coordinates of the original triangle by 2
muscrat123
  • muscrat123
?
anonymous
  • anonymous
A(4, −6), B(2, −8), and C(−10, 4) New triangle: A (4/2, -6/2) B (2/2, -8/2) C (-10/2,4/2)
muscrat123
  • muscrat123
2,-3
muscrat123
  • muscrat123
is it a ?
anonymous
  • anonymous
yep
muscrat123
  • muscrat123
Jamie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randomly from the deck, records its type, and replaces it in the deck. Jamie has already recorded six baseball cards and nine football cards. Based on these data, what is, most likely, the number of baseball cards in the deck? 12 15 24 30 c, correct?
anonymous
  • anonymous
yea c
muscrat123
  • muscrat123
Which sequence of transformations will change figure PQRS to figure P′Q′R′S′? Counterclockwise rotation about the origin by 90 degrees followed by reflection over the x-axis Counterclockwise rotation about the origin by 90 degrees followed by reflection over the y-axis Counterclockwise rotation about the origin by 180 degrees followed by reflection over the x-axis Counterclockwise rotation about the origin by 180 degrees followed by reflection over the y-axis
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muscrat123
  • muscrat123
is it a?
anonymous
  • anonymous
definitely the last 2 options
muscrat123
  • muscrat123
c?
anonymous
  • anonymous
lemme check, i dont remember a thing about those already
anonymous
  • anonymous
yea its A
anonymous
  • anonymous
rotate to 4th quadrant then reflection to 1st quadrant from x-axis
muscrat123
  • muscrat123
really? i usually never get these right
anonymous
  • anonymous
|dw:1438955704612:dw|
muscrat123
  • muscrat123
thank u so much i got a 93 :)
anonymous
  • anonymous
a is the only option that fits in
anonymous
  • anonymous
lol yw
muscrat123
  • muscrat123
will u be available later?
anonymous
  • anonymous
maybe
anonymous
  • anonymous
sometimes i fall asleep with my pc on
anonymous
  • anonymous
if i dont reply within 20mins, im prolly sleeping or playing dota2

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