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Arisa [49]
3 years ago
11

James bill at a restaurant

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

46.61

Step-by-step explanation:

18% of 39.50 = 7.11

39.50 + 7.11 = 46.61

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Write an exponential function whose graph passes through the given points (0, - 2) and (- 1, - 4)
melamori03 [73]

Answer:

y = 2(0.5) {}^{x}

Step-by-step explanation:

Use the general formula of exponential equation

y = ab {}^{x}

Plug 0,2 into the function

- 2 = ab {}^{0}

- 2 = a \times 1

a =  - 2

y =  - 2b {}^{x}

- 4 =  - 2b {}^{ - 1}

2 = b {}^{  - 1}

{2}^{ \frac{ 1}{ - 1} }

2 {}^{ - 1}  = 0.5

B=0.5

y = 2(0.5) {}^{x}

3 0
3 years ago
Share what you know about the properties of multiplication...!
3241004551 [841]

Answer:

- changing the order of the numbers we are multiplying, does not change the product

Step-by-step explanation:

7 x 8 x 11 x 2 = 11 x 7 x 2 x 8

1232 = 1232

Hope it helps!

3 0
3 years ago
What is the slope of a line that is perpendicular to the line y=8x+5
statuscvo [17]

Answer:

-1/8

Step-by-step explanation:

Perpendicular slopes are negative reciprocals

The slope of y=8x+5 is 8, because it is in slope intercept form: y=mx+b form, where m is the slope.

Negative:

8/1--> -8/1

Reciprocal:

Flip the numerator and denominator

-8/1--> -1/8

So, the perpendicular slope of 8 is -1/8

4 0
3 years ago
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Find the volume of a rectangular prism if the length is 2x, the width is 4x2, and the height is 2x2 + x + 7. Use the formula V =
Wewaii [24]
2x*(4x^2)*(2x^2+x+7)
8x^3*(2x^2+x+7)
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Hope this helps :)
7 0
3 years ago
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Rewrite the expression -2(6-x)
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If you expand, the answer is -12+2x
5 0
3 years ago
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