I need help with finding the sum of (x^4 + 2x^3 - 7x - 9) + (x^5 - 2x^4 + 8x + 18) in standerd form
1 answer:
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Answer:
<em><u>slope is -7/8</u></em>
Step-by-step explanation:
ok
first remember these to formulas:
and
now insert the points:
= -7/8
slope intercept form:
y - 4 = -7/8(x - (-5)
y - 4 = -7/8(x + 5)
y = -7x/8 - 3/8
Have a nice day!
and if you have a question or if I did anything wrong please tell me.
The coffee shop used 52 pounds of Type A coffee.
Step-by-step explanation:
Cost of Type A coffee per pound = 5.25
Cost of Type B coffee per pound = 4.10
Total pounds used in blend = 142
Total cost = 642.00
Let,
x be the pounds of Type A coffee used
y be the pounds of Type B coffee used
According to given statement;
x+y=142 Eqn 1
5.25x+4.10y=642.00 Eqn 2
Multiplying Eqn 1 by 4.10
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 1.15
The coffee shop used 52 pounds of Type A coffee.
Keywords: linear equation, elimination method
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