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jolli1 [7]
3 years ago
5

Use cross products to determine which of the following proportions are equivalent to each other. Select all situations that appl

y.

Mathematics
1 answer:
m_a_m_a [10]3 years ago
3 0

Answer:

ad=cb

ad=cb

ab=cd

bc=da

bd=ac

1 and 2 are equal

Step-by-step explanation:

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Write an equation of the line with a slope of −1/2 and a y-intercept of 1.
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Answer:

y=-1/2x+1

Step-by-step explanation:

y=mx+b

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3 years ago
What is the additive inverse of t ? *
antiseptic1488 [7]

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-t

Step-by-step explanation:

Additive inverse of t:

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The point (1, −1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of
defon
The abscissa of the ordered pair, that is the x-coordinate, is equal to 1 and the ordinate, the y-coordinate, is equal to -1. In the cartesian plane, this point lies in the fourth (IV) quadrant. The standard position of the angle is that which has one of its side is in the x-axis.

Solve for the hypotenuse of the right triangle formed.
           h = sqrt((-1)² + (1)²) = √2
Below items show the calculation for each of the trigonometric functions.

 sin θ = opposite/hypotenuse = y/h = (-1)/(√2) = -√2/2
 cos  θ = adjacent/hypotenuse = x/h = (1)/√2 = √2/2
tan θ = opposite/adjacent = y/x = -1/1 = -1
7 0
3 years ago
Gregory knows that Triangle A B C is reflected onto Triangle A prime B prime C prime. Which statement about the figures is true?
ziro4ka [17]
Answer: if Gregory draws the segment with endpoints A and A’, then the midpoint will lie on the line of reflection.

Explanation:

Given that a triangle ABC is reflected in triangle A'B'C'

Here reflection is done on a line

If you imagine the line as a mirror then ABC will have image on the mirror line as A'B'C'

Recall that in a mirror the object and image would be equidistant from the mirror and also the line joining the image and object would be perpendicular to the mirror

But note that corresponding images will only be perpendicular bisector to the line

So A and A' only will be corresponding so AA' will have mid point on line

Option 1 is right
5 0
3 years ago
Does anyone know this lol i just need a short explanation
maks197457 [2]

Answer: pretty sure it’s because the left and bottom sides add up to equal the top side

Step-by-step explanation:

4 0
3 years ago
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