Which of the following shows 9x2y - 4x + 3y3x - 2y2 written in standard form?
2 answers:
Answer:
option (4) is correct.
the given expression can be written in standard form as
.
Step-by-step explanation:
The Standard form of writing an equation,
1) Look at the degree of each term.
2) You then write each term in order of degree, from highest to lowest, left to right..
3) The expression has an exponent of 2 on the x and an unwritten exponent of 1 on the y, so this term is to the third degree (2+1). We add the two degrees together because it has two variables.
Consider the given equation,
We have to write it in standard form using the steps stated above,
first we find the degree of each term in the given expression,
The expression has an exponent of 2 on the x and an unwritten exponent of 1 on the y, so this term is to the third degree (2+1).
The expression has an exponent of 3 on the y and an unwritten exponent of 1 on the x, so this term is to the third degree (3+1).
So the highest degree in the given expression is
write each term in order of degree, from highest to lowest, left to right.
following this , we can write the expression as,
Thus, option (4) is correct.
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Answer:
The rental rate for the Fords is of $12 per day.
Step-by-step explanation:
This question is solved using a system of equations.
I am going to say that:
x is the cost of a Nissan.
y is the cost of a Ford.
z is the cost of a Chevrolet.
Three Nissans, two Fords, and four Chevrolets can be rented for $106 per day.
This means that:
Two Nissans, four Fords, and three Chevrolets cost $107 per day
This means that:
Four Nissans, three Fords, and two Chevrolets cost $102 per day.
This means that:
From the first equation:
Replacing into the third equation:
From the second equation:
Find the rental rate for the Fords.
We have to find y, so:
The rental rate for the Fords is of $12 per day.