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Licemer1 [7]
3 years ago
15

Help me please and thank you!!!

Mathematics
1 answer:
loris [4]3 years ago
4 0

Answer:

f(3) = - 60

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into f(x), that is

f(3) = 5(3)² - 7(4(3) + 3)

     = 5(9) - 7(12 + 3)

     = 45 - 7(15)

     = 45 - 105

     = - 60

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iVinArrow [24]
0.10 times 500 equals 50 
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The Hamilton Brush Company issued 2,500 shares of common stock worth $100,000.00 total. What is the par value of each share?
alexandr1967 [171]
What we know here is that all 2500 shares together are worth 100 000 dollars in total. (it's 100 000.00 actually, but we can ignore the part after the point, as it's equal to 0).

This means that each of the shares is valid the whole sum divided by the number of shares, that is:
\frac{100000}{2500} = \frac{1000}{25} =40
(first i divided both denominator and numerator by 100)
So each value is worth 40 dolars.
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A train leaves Miami at 3:00pm. A second train leaves the same city in the same direction at 5:00pm. The second train travels 50
Alexxandr [17]
Let the speed of the first train be v mph. Then the speed of the second train is:
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However the speed of the second train is also given by (v + 50) mph.
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3 years ago
Given y=2x+8, determine the value of y when x=3
Alisiya [41]

Answer:

y = 14

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5 0
4 years ago
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Sid starts with savings of £13
vfiekz [6]

Answer:

after 6 weeks

Step-by-step explanation:

Sid and Tim starts saving each week.

Sid starts his savings with initial amount of £13.00

Tim starts his saving with initial amount of £00.00

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Tim will save each week = £3.00

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After 6 weeks the savings of Tim and Sid would be in the ratio of 17 : 9.

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3 years ago
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