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3 years ago

Urgent Multiple Choice 25 points

Mathematics

1 answer:

Hoochie [10]3 years ago

7 0

A because (145 /5) gives the students per class. Then you times that by the money she spends.

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Which relation is also a function? {(2,0), (3,2), (2,3)} {(0,0), (3,0), (5,0)} {(3,1), (3,2), (3,3)} {(5,2), (5,4), (2,6)}

pychu [463]

Answer:

only{(0,0), (3,0), (5,0)} (the x axis)

Step-by-step explanation:

as all the others have more than one possible output y for a unique input x

4 0

2 years ago

Triangle DEF has vertices D(−4, 1), E(2, 3), and F(2, 1) and is dilated by a factor of 3 using the point (1, 1) as the point of

CaHeK987 [17]

Answer: $D'(-14,1);\ E'(4,7);\ F'(4,1)$

Step-by-step explanation:

Since the center of dilation is not at the origin, we can use the following formula in order to find the coordinates of the vertices of the triangle D'E'F':

$D_{O,k}(x,y)=(k(x-a)+a, k(y-b)+b)$

Where "O" is the center of dilation at (a,b) and "k" is the scale factor.

In this case you can identify that:

$(a,b)=(1,1)\\k=3$

Therefore, susbtituting values into the formula shown above, you get that the coordinates ot the resulting triangle D'E'F, are the following:

Vertex D' → $(3(-4-1)+1,\ 3(1-1)+1)=(-14,1)$

Vertex E' → $(3(2-1)+1,\ 3(3-1)+1)=(4,7)$

Vertex F' → $(3(2-1)+1,\ 3(1-1)+1)=(4,1)$

6 0

3 years ago

the lengths of the sides of a triangle are consecutive even integers. the perimeter is 42. what is the length of the longest sid

Alex

Answer:

Assuming x as the length of the longest side, x is 16 units.

Step-by-step explanation:

$x+(x-2)+(x-4)=42\\3x-6=42\\3(x-2)=42\\x-2=14\\x=16$

5 0

3 years ago

Select all pairs of alternate exterior angles. Assume the lines are parallel.<br>

frozen [14]

The angles are
1 & 2
7 & 8

5 0

2 years ago

Use the distributive property and the greatest common factor to rewrite the sum 25 + 60.

Kitty [74]

The factors of 25 and 60 would be 5. 25 divided by 5 is 5 and 60 divided by 5 is 12.

So here is what the distributive property looks like.

a(b+c)=a*b+a*c but we are going to rewrite a*b and a*c as 5*5 and 12* 5

a(b+c)=5*5+12*5

So i'd say its 5*5+5*12 i hope this helps

7 0

2 years ago

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