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Aleks04 [339]
3 years ago
13

Is the following a function yes or no? f(x) = 3x2 - 7x + 9

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

becaue it would pass the vertical line test. and it is a quadratic

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Help ! ASAP! I need it done by 10:45
Arturiano [62]

Answer:

13%

Step-by-step explanation:

Its out of 100 people so:

47+33+7 = 87% own a pet

100-87=13%

5 0
3 years ago
Geraldine has 8 cups of sugar. She uses 6 3/5 cups to make a large cake. How many cups of sugar does she have left?
Inga [223]

Answer:

1\frac{2}{5}

Step-by-step explanation:

remaining cups = total cups - used caps

let remaining cups be = x

     total cups = y = 8

      used cups = z= 6\frac{3}{5}

Hence x = y-z

x = 8 - 6\frac{3}{5}

  = \frac{8}{1}  - \frac{33}{5}  = \frac{40-33}{5} = \frac{7}{5} = 1\frac{2}{5}

x= 1\frac{2}{5}

Remaining cups = 1\frac{2}{5}

4 0
3 years ago
If a car travels 640 miles in 11 hours, what is the average rate (speed) of the car?
sergij07 [2.7K]
Per hour? my best guess is 58 miles
All you have to do is divide 640 by 11
5 0
3 years ago
Read 2 more answers
Units must be consistent. If the unit for p is dollars, the unit for i is dollars and the unit for t is years, what must the uni
umka2103 [35]

Assuming you're concerned with interest rate problems, r is generally involved in something like the formula ...

... i = prt

So, r will have the units of ...

... r = i/(pt) = (dollars)/(dollars·year) = 1/year

That is, r is <em>(some fraction) per year</em>.

_____

Often, the fraction is expressed as a percentage. The fraction will be unitless (as percentages are), leaving the units of r as year⁻¹.

5 0
3 years ago
Which of the following is the quotient of the rational expressions shown here?
svetoff [14.1K]

For this case we must find the quotient of the following expression:

\frac {\frac {x} {x-1}} {\frac {1} {x + 1}}

Applying double C we have the following expression:

\frac {x (x + 1)} {x-1} =

Applying distributive property to the terms within the parentheses of the numerator we have:

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

Thus, the quotient is given by option A

Answer:

Option A

3 0
3 years ago
Read 2 more answers
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