Answer: B
<u>Step-by-step explanation:</u>
-10x² + 12x - 9 = 0
a=-10, b=12, c=-9
x = 
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= 
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+/- 
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Answer:
depends on situations
Step-by-step explanation:
Answer: y = 40x + 750
Step-by-step explanation:
Linear model;
y = mx + c
y is the total cost of buying granite counter tops for a certain number of square foot as well as the cost to install the counter top.
m is the cost of granite counter tops per square foot which is $40 in this case.
x is the number of square feet required.
c is the base pay for the installation of the counter top which is $750
Linear model will therefore look like this;
y = 40x + 750
To test it. Assume you want enough granite tops for 10 square feet. How much would it cost;
= 40 (10) + 750
= $1,150
Answer:
(2,-5)
Step-by-step explanation:
