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Tom [10]
2 years ago
8

Someone help me understand this

Mathematics
1 answer:
zheka24 [161]2 years ago
4 0

Answer:

Step-by-step explanation:

for reflection around x-axis.

(x,y)→(x,-y)

so P' is (-7,4)

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What is the equation in point slope form of the line that passes through the points (2,4) and has a slope of 3
Ronch [10]

The formula for point slope is:

y-y1=m(x-x1)

m is your slope: 3; plug in 4 for y1 and 2 for x1

y - 4=3(x-2)

6 0
3 years ago
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Solve the equation on the interval 0 less than or equals theta less than 2 pi 0≤θ<2π. 2 cosine theta plus 1 equals 0 2cosθ+1=
VARVARA [1.3K]

Answer:

θ = 2π/3 or 5π/3

Step-by-step explanation:

2 cosθ + 1= 0

when  + 1 goes to R H S Side than it becomes negative by transposition   method

2 cos = -1

now by dividing by 2 both sides we get

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it means either cosθ lies in 2nd or third quadrant

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or

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6 0
3 years ago
A right triangle is removed from a rectangle to create the shaded region shown below. Find the area of the shaded region. Be sur
Mashcka [7]
The sides of a right triangle are
a=8-5=3
\\ b=6-4=2
\\
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7 0
3 years ago
Read 2 more answers
Please help I needed it badly
kicyunya [14]

Answer:

The answer is C trust me I did this

3 0
2 years ago
HELP PLEASEEE with steps
zysi [14]
<h3>Answer: Choice C) 421.9</h3>

=======================================

Explanation:

You're on the right track. You wrote down the proper expression to get the final answer, assuming you meant to write 75/4 as the third term inside the parenthesis. This works because each time you cut the side length in half to get each smaller triangle's side. The 3 is because there are 3 sides for each of the triangles. Much of this I have a feeling you already know as you wrote down the expression on the page, though I'm not 100% sure of your mindset. Computing this expression leads to 421.875 which rounds to 421.9

note: an alternative is to write 3*75 + 3*75/2 + 3*75/4 + 3*75/8, though that is more work. It's better to have that 3 factored out.

8 0
3 years ago
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