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ad-work [718]
2 years ago
15

Daikwon and Chris are about to record a new CD. They have a choice between two back up bands. One band charges $50 plus $20 for

each take. The second band charges S20 plus $25 for each take.
Mathematics
1 answer:
MrRa [10]2 years ago
5 0

Answer:

The second band

Step-by-step explanation:

50+20=70

20+25=45

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Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
nikitadnepr [17]
You can start with the form
  ∆y(x -x1) -∆x(y -y1) = 0
Here, we have
  ∆y = 11-(-3) = 14
  ∆x = -3-1 = -4
and we can choose (x1, y1) = (1, -3). This gives
  14(x -1) -(-4)(y -(-3)) = 0
  14x +4y -2 = 0
All these terms have a common factor of 2 that we can remove. Adding 1 to the result puts it in standard form:

  7x +2y = 1

6 0
3 years ago
How to calulate what percentage a number is of a larger number
Tju [1.3M]

Answer: you just multiply the big by the percentage. But change the percentage to a decimal. There only two operating when dealing with percentage. Add or subtract. Once you multiply the percentage with big number add or subtract the answers with the big number.

Step-by-step explanation:

8 0
3 years ago
What value of x satisfies
LenaWriter [7]

Answer:

See explanation

Step-by-step explanation:

The given trigonometric equation is cos(90-x)=-\frac{\sqrt{3} }{3}.

We take the inverse cosine of both sides to get:

90-x=cos^{-1}(-\frac{\sqrt{3} }{3})

90-x=125

x=125-90

x=-35\degree=325\degree to the nearest degree

None of the options satisfies the given equation.

But if the question is actually;

cos(90-x)=-\frac{\sqrt{3} }{2}

Then;

90-x=\cos^{-1}(-\frac{\sqrt{3} }{2}).

90-x=210.

90-x=210.

x=-120\degree.

Or

x=360-120=240\degree.

In this case the answer will be B

5 0
3 years ago
Read 2 more answers
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QveST [7]

Answer:

a

Step-by-step explanation:

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2 years ago
A triangle ABC has A(1,-4) B(3,-1) C(3,-8).Find the length of the sides AB and AC
mr_godi [17]

Answer:

Step-by-step explanation:

AB=\sqrt{(1^{2} -3^{2})+((-4)^{2} -(-1)^{2} ) }

     =\sqrt{7}

AC=\sqrt{(3^{2} -1^{2} )+((-8)^{2}- (-4)^{2} )} \\

     =\sqrt{56}

4 0
2 years ago
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