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Sladkaya [172]
2 years ago
8

-424 +122-72+2

Mathematics
1 answer:
Xelga [282]2 years ago
8 0

Answer:

The expression "-424 +122-72+2" doesn't seem to have anything to do with the rest of the problem.  The sum of what was written is -372.  There are no unknowns (x's) in this expression, and yet the work shows x's in the analysis.

Step-by-step explanation:

What does "by using

202+1

polynomial long division."  mean??

do the numbers after the x's represent exponents?

e.g.:  "2x + 1) - 4x4 + 12x3 - 7x + 2" is really "2x + 1) - 4x4 + 12x^3 - 7x + 2"

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Which quadratic function has a leading coefficient of 2 and a constant term of –3?
Romashka [77]
The answer is <span>f(x) = 2x2 + 3x – 3
</span>
f(x) = ax² + bx + c
a - the leading coefficient
c - the constant term

<u>We are looking for a = 2, c = -3</u>

Through the process of elimination:
The first (f(x) = 2x3 – 3) and the third choice (f(x) = –3x3 + 2) have x³ so these are not quadratic function.

In the function: <span>f(x) = –3x2 – 3x + 2
</span>a = -3
c = 2

In the function: f(x) = 2x2 + 3x – 3
a = 2
c = -3
6 0
3 years ago
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oksian1 [2.3K]

Answer:

1- solve for x

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Step-by-step explanation:

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3 years ago
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Simply the variable expression below as much as possible. <br><br> 7x + (5.6) z
marta [7]

Answer:

7x + 5.6z

Step-by-step explanation:

To simplify any expression we use PEMDA ( order of operation)

Parenthesis

Exponents

Multiplication and division

Addition and subtraction

7x + (5.6) z

Here we have 5.6 inside the parenthesis

We multiply 5.6 with z

so it becomes 5.6z

7x + 5.6 z

Both terms 7x and 5.6z have different variable so they are not like terms

We cannot combine unlike terms, so we leave as it is

7x + 5.6z

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3 years ago
What is the area of a trapezoid that has bases of 1feet and 14 inches and a height of 3 inches? A 43.5 in.^2 B 87 in.^2 C 22.9 i
Black_prince [1.1K]

Answer:

Option A. 43.5\ in^{2}  

Step-by-step explanation:

we know that

The area of a trapezoid is equal to

A=(1/2)(b1+b2)h

we have

b1=1\frac{1}{4}\ ft

b2=14\ in

h=3\ in

Convert feet to inches first

Remember that

1\ ft=12\ in

so

1\frac{1}{4}\ ft=\frac{5}{4}\ ft=12*\frac{5}{4}=15\ in

substitute in the formula

A=(1/2)(15+14)3=43.5\ in^{2}  

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3 years ago
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