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3 years ago

How can x2+3x+1=2x2+2x+3 be set up as a system of equations

1 answer:

6 0

For this case we can write the system of equations as two equations with two unknowns.
We then define the following unknowns:
incognitas: x and y.
We write the system of equations:
y = x2 + 3x + 1
y = 2x2 + 2x + 3
Answer:
y = x2 + 3x + 1
y = 2x2 + 2x + 3

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Let f(x) = x2 - 5 and g(x) = 3x2. Find g(f(x))

m_a_m_a [10]

Answer:

Step-by-step explanation:

to find composite function:

put the inner funtion into the outer function

inner func.= $x^2-5$

outer= $3x^2$

hence,

$g(f(x))= 3(x^2-5)^2$

3 0

2 years ago

Angles C and E are supplementary. The M>C = 112 and M>E = (3x + 50) Solve for X.

maxonik [38]

Answer:

The value of x is 6

Step-by-step explanation:

we know that

If two angles are supplementary, then their sum is equal to 180 degrees

In this problem

m∠C+m∠E=180°

we have

m∠C=112°

m∠E=(3x+50)°

substitute and solve for x

112°+(3x+50)°=180°

3x+162=180

3x=180-162

3x=18

x=6

7 0

3 years ago

Solve the following system of linear equations. 3x + 2y = 10 2x + 3y = 15/2 No solution y = (-3/2)x + 5 x = 3, y = -1/2 x = 3, y

frutty [35]

3x + 2y = 10 .....multiply by -2
2x + 3y = 15/2...multiply by 3
------------------
-6x - 4y = -20 (result of multiplying by -2)
6x + 9y = 22.5 (result of multiplying by 3)
-----------------add
5y = 2.5
y = 2.5/5
y = 1/2

3x + 2y = 10
3x + 2(1/2) = 10
3x + 1 = 10
3x = 10 - 1
3x = 9
x = 9/3
x = 3

solution is (3,-1/2)

5 0

3 years ago

The price of a radio was $20 it's on sale for $15 what is the percent of change in the price of a radio

Ierofanga [76]

Your answer is 25% <span> of change in the price of a radio</span>

8 0

2 years ago

Read 2 more answers

Translate to an equation and solve the product of 2 and a number increased by 8 is -48

Marizza181 [45]

The equation would be 2x+8=-48 and x=-28

4 0

3 years ago