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AysviL [449]
3 years ago
9

Find the value of k so that the

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0

Answer:

gradient =  - 3 \\  - 3 =  \frac{(8 + 1)}{( - 2 - k)}  \\  3(2 + k) = 9 \\ 2 + k = 3 \\ k = 1

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A planet has a circular orbit around a star. It is a distance of 65,000,000 km from the centre of the star. It orbits at an aver
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Answer:

Step-by-step explanation:

Orbit = 2*pi * r

r = 65000000 km

Orbit = 65000000 * 2 * 3.14

Orbit = 406 200 000             km

d = 406 200 000

s = speed = 65000 km / hr

t = time = d / s

t = 406,000,000 / 65000

t = 6280 hours.

1 day = 24 hours.

t = 6280 / 24 = 261.67 days

8 0
3 years ago
You are an accountant doing an audit for a law firm. A paralegal worked for a client for 5 hours per day for 3 days. The client
blagie [28]
Total hours worked = 5 x 3 = 15 hours

Amount collected = 50 x 15 = $750
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3 years ago
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What's the answer to the question?​
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Answer:

asa

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right angle

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6 0
3 years ago
I need help finding the domain and range!! -Algebra
statuscvo [17]

Answer:

  • The graph is shown below
  • Vertex = (2,1)
  • Axis of symmetry is x = 2
  • Domain = set of all real numbers
  • Range = set of y values such that y \ge 1

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

Explanation:

Use your favorite graphing tool to graph the equation. If your teacher doesn't allow you to use graphing software, then you'll have to plug in various x values to find the paired y values. This gives the set of (x,y) points needed to be plotted to form the parabola. The more points you plot, the more accurate the curve.

The graph is shown below. I used GeoGebra to make the graph. It's free graphing software. Desmos is another tool that I recommend.

------------

The lowest point on the parabola is the vertex (h,k) = (2,1) which is shown in the graph below.

This is due to the equation being in vertex form y = a(x-h)^2 + k. We see that h = 2 and k = 1.

-------------

The axis of symmetry is the vertical line that passes through the vertex.

As such, the axis of symmetry equation is simply x = h. So that's how we get to x = 2.

In the graph below, the axis of symmetry is the red dashed line.

-------------

There aren't any restrictions on x. We don't have to worry about dividing by zero or applying a square root to a negative number.

Therefore, any x value is allowed and the domain is the set of all real numbers.

-------------

The range however isn't the set of all real numbers. The lowest y can get is y = 1 due to the vertex point. We can have y = 1 or larger

Therefore, y \ge 1 is the range.

7 0
2 years ago
Math<br> If you give me right answer I will mark brainiest pls answer asap
Thepotemich [5.8K]

Answer:ccccy/x =kccccy

Step-by-step explanation:

8 0
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