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2 years ago

Help me with this, pls and thxs.

Mathematics

1 answer:

Vesna [10]2 years ago

3 0

The domain is all possible x.

The range is all possible y.

In other words, all the possible inputs that can lead to a real output and all the possible outputs that have a real input.

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HELPPP PLZZ I REALLY NEED HELP

gogolik [260]

Answer: A.

The reason is because if you're adding a negative to a number, it's subtraction, which is in the expression.

6 0

3 years ago

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A line represented by y = 2x − 3 and a line perpendicular to it intersect at R(2, 1). What is the equation of the perpendicular

neonofarm [45]

Answer:

y = -1/2x + 2

Step-by-step explanation:

y = 2x - 3. The slope here is 2. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal, just flip the slope and change the sign.

slope = 2 or 2/1.....flip it.....1/2....change the sign...-1/2. So our perpendicular line will have a slope of -1/2.

y = mx + b

slope(m) = - 1/2

(2,1)....x = 2 and y = 1

now we sub and find b, the y intercept

1 = -1/2(2) + b

1 = -1 + b

1 + 1 = b

2 = b

so ur equation is : y = -1/2x + 2 <===

and u can check it with ur points....(2,1)

y = 2x - 3

1 = 2(2) - 3

1 = 4 - 3

1 = 1 (yep...it checks out)

8 0

3 years ago

Identify the transformation that carries the figure onto itself.

solong [7]

D. Reflect across line x =-7

6 0

3 years ago

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How many of the numbers from the set $\{1,\ 2,\ 3,\ldots,\ 50\}$ have a perfect square factor other than one?

Novay_Z [31]

Answer:

2^2 ( 1,2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44,48

3^2(1,2,3, 5) = 9, 18, 27, 45

5^2(1, 2) = 25, 50

7^2 = 49

19 numbers

Step-by-step explanation:

5 0

3 years ago

What is this answer I don't understand how to figure it out

Diano4ka-milaya [45]

These are congruent angles. So they would be equal to each other. 6x=4x+50

2x=50

x=25°
:)

8 0

3 years ago

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