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vova2212 [387]
3 years ago
15

How many orders pair solutions does the system of equations have? -4+3y=12 x+y=2

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0

Answer:

B. 1

- 4x + 3y = 12 -  -  - (a) \\ x + y = 2 -  -  - (b) \\  (a) - 3 \times (b) :  \\  - 7x + 0y = 6 \\  { \boxed{x =   - \frac{6}{7} }} \\  -  \frac{6}{7}  + y = 2 \\ { \boxed{y =  \frac{20}{7} }}

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R^2+3r+5-r^3/r is a quadratic/cubic/linear polynomial?
Sergeu [11.5K]

r^2+3r+5-r^3/r is  a linear polynomial

S<u>tep-by-step explanatio</u>n:

based on the highest power of the variables of a polynomial, it can be classified as linear,polynomial, quadratic polynomial,cubic polynomial etc.

In a linear polynomial, the highest power of the variable is 1. The general form of a linear polynomial is ax+b

In a quadratic polynomial, the highest power of the variables is 2.The general form of quadratic polynomial is ax^2+bx+c

In a cubic polynomial,the highest power of variable is 3.The general form of cubic polynomial is ax^3+bx^2+cx+d.

Take the given question and simplify it

r^2+3r+5-r^3/r=r^2+3r+5-r^2\\=3r+5

It is of the form ax+b. Hence it is  a linear polynomial.

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3 years ago
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Answer:

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Step-by-step explanation:

6 0
3 years ago
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Express f(x) = 3 cos x + 5 sin x as Rsin(x + o), where e<br>is an acute angle in radians.​
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Answer:

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Step-by-step explanation:

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R = √a²+b²

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Given the function f(x) = 3 cos x + 5 sin x, comparing with the general equation;

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e =\frac{\pi }{180}*59.09\\ e = 0.33\pi rad

3 cos x + 5 sin x = √34sin(x + 0.33π)

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3 years ago
Question 14
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The hawaiian language has 12 letters: five vowels and seven consonants. each of the 12 hawaiian letters are written on a slip of
miskamm [114]
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3 years ago
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