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suter [353]
2 years ago
10

Melanie spent four hours babysitting. She charges $16 upfront and then an additional charge per hour. The total amount she earne

d can be represented by the expression $4x +$16. What expression represents the amount she earns each hour?
Mathematics
1 answer:
stiv31 [10]2 years ago
6 0

Answer:

$4

Step-by-step explanation:

She charges $16 upfront

$4x + $16

The $16 charges upfront is the $16 in bold.

The $4x is the amount she charges depending on the hours.

The number of hours is x. The amount she charges per hour is $4.

Answer: $4

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Translate this phrase into an algebraic expression.
Andreas93 [3]

Answer:

4m-8

Step-by-step explanation:

5 0
3 years ago
Match each of the trigonometric expressions below with the equivalent non-trigonometric function from the following list. Enter
andreev551 [17]

Answer:

Step-by-step explanation:

In each case, draw the right triangle which produces the inverse trig value. That is, label the two sides as needed, and calculate the third side.

It should be clear that

tan(sin^{-1} x/4) = x/\sqrt{16-x^{2} }

sin(tan^{-1} x/4) = x/\sqrt{16+x^{2} }

sin(2α) = 2 sinα cosα

So,

1/2 sin(2sin^{-1} x/4) = (1/2)(x/4) * x/\sqrt{16-x^2} = x^{2} /(8\sqrt{16-x^2})

See what you can do with the others.

6 0
3 years ago
Please help!!! Question: Josh's group was selling candy for a funraiser. They sold them for $.50 a piece but had to pay shipping
Alex Ar [27]

Answer:

Their profit was $20. Hope it helps.

7 0
3 years ago
A banner is in the shape of a rectangle. It is 15 feet long and 12 feet wide. What is the perimeter?
Effectus [21]

Here....

The length is given 15 feet and the width is 12 feet...Now let's find the Perimeter..

  • The formula to calculate Perimeter of rectangle is 2 ( l + b )

Perimeter = 2 ( l + b )

= 2 ( 15 + 12 )

= 2 × 27

= 54 feet

...

:)...

3 0
2 years ago
AC is tangent to circle O at A. The Diagram is not to scale.
statuscvo [17]

Answer:

  • B. 64°

Step-by-step explanation:

<u>Given:</u>

  • mBY = 52°

<u>Inscribed angle measure is half the intercepted arc:</u>

  • m∠BAY = 1/2(52°) = 26°

<u>The angle between the diameter and tangent is right angle:</u>

  • m∠BAC = 90°

<u>According to angle addition postulate:</u>

  • m∠YAC = m∠BAC - m∠BAY
  • m∠YAC = 90° - 26° = 64°

Correct choice is B

7 0
2 years ago
Read 2 more answers
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