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larisa [96]
3 years ago
8

(a-7)(a-3) as a function

Mathematics
1 answer:
stiv31 [10]3 years ago
7 0

Answer:

a^2 −10a+21

Step-by-step explanation:

(a−7)(a−3)

Apply the distributive property by multiplying each term of a−7 by each term of a−3.

a^2 −3a−7a+21

Combine −3a and −7a to get −10a.

a^2 −10a+21

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you have a work meeting that starts at 1:15 pm. you arrived at 12:53 pm. how many minutes early were you?
Inessa05 [86]
I totally forgot that I am having meeting at my work place. All of sudden, I remembered that meeting through a hint given by my colleague while having discussion about our project work. I have to present a topic which I didn't prepare yet. Meeting is at 1.15pm. OMG! It's already 12.30 pm. Within few minutes I went to the meeting place with my topic. When I entered the meeting hall, the time was 12.53pm. I was happy to know that I arrived 22 minutes earlier.
3 0
4 years ago
A shopkeeper buys two types of tea one at $20 for 10 kg and the other at $23 for 10 kg. He mixes the two types and the mixture i
lorasvet [3.4K]
Let us take the case of first type of tea
Cost of 10 kg of tea one = $20
Then
Cost of 1 kg of tea one = (20/10) dollars
                                     = 2 dollars
Now let us take the case of the second kind of tea
Cost of 10 kg of tea = $23
Then
Cost of 1 kg of tea = (23/10) dollars
                               = 2.3 dollars
So
The mixture of 1 kg of tea one
and 1 kg of second type of tea will cost = (2.0 + 2.3) dollars
                                                                = 4.3 dollars
Then the cost of 2kg mixture of tea costs = 4.3 dollars
So
The cost of 10 kg mixture will cost = (4.3/2) * 10 dollars
                                                         = 4.3 * 5 dollars
                                                        = 21.5 dollars
Then
The amount of profit made by selling 10 kg tea at $38 = (38 - 21.5) dollars
                                                                                       = 16.5 dollars
So
Percentage of profit made = (16.5/21.5) * 100
                                           = 1650/21.5
                                           = 76.74 percent
So the percentage of profit made is 76.74%.
3 0
3 years ago
Which expression is equivalent to 6f+f?
Elena L [17]

Answer:

A

Step-by-step explanation:

This is because 6f+f is just 7f.

f f f f f f+f = fffffff

Soooo, ONLY A gives us 7f when added together again.

f+5f+f=7f.

f+ f f f f f +f = fffffff

3 0
2 years ago
Read 2 more answers
Let f(x) = |x|, where x can be any real number. Write a formula for the function whose graph is the
andrew11 [14]

Answer:

y = 5f(x)

Please see the picture below

Step-by-step explanation:

Given the function f(x) = |x|, to transform the function y=f(x) with a vertical scaling with scale factor of 5, you should multiply the function by 5 to obtain the result;

y = 5f(x)

Please see the picture below to see a graphic solution.

3 0
3 years ago
Tom buys a shirt for 22.00 plus 7% sales tax. His cousin buys a shirt for 18.00 plus 4% sales tax. How much do Tom and his cousi
Luda [366]

Answer:

$42.26

Tom spent more on tax ($1.54 vs his cousin's $0.72)

Step-by-step explanation:

Tom: $22 x 1.07 = $23.54

tax spent = 22 x 0.07 = $1.54


Cousin: $18 x 1.04 = $18.72

tax spent = 18 x 0.04 = $0.72


Total= $23.54 + $18.72 = $42.26

6 0
3 years ago
Read 2 more answers
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