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victus00 [196]
2 years ago
11

On a piece of paper, graph y<-2/5x+1 then determine which answer choice matches the graph you drew

Mathematics
1 answer:
Andreyy892 years ago
6 0
Can take a picture of the graph
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Show that 2x +1 is a factor of 2x3 +5x2+4x+1 and factories completely
larisa [96]

\text{According to the factor theorem, if f(b) = 0, then x-b is a factor of f(x).}\\\\\text{Given that,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\f\left(-\dfrac 12 \right) = 2\left( - \dfrac 12 \right)^3 +5 \left( - \dfrac 12 \right)^2 +4 \left( - \dfrac 12 \right) +1 \\\\\\~~~~~~~~~~~~=-2 \cdot \dfrac 18 + 5 \cdot \dfrac 14 -2 +1 \\\\\\~~~~~~~~~~~=\dfrac 54 -\dfrac14 -1\\\\\\~~~~~~~~~~~=\dfrac 44 -1 \\\\\\~~~~~~~~~~~=1-1\\\\\\~~~~~~~~~~~=0\\\\\text{So,}~ 2x +1 ~ \text{is a factor of f(x).}

\text{Now,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\~~~~~~=2x^3+x^2 +2x^2 +2x +2x+1\\\\~~~~~~=x^2(2x+1)  +2x(2x+1) +  (2x+1)\\\\~~~~~~=(2x+1)(x^2 +2x +1)\\\\~~~~~~=(2x+1)(x+1)^2

3 0
2 years ago
What are the solutions to the equation x2 + bx+c=0?
nevsk [136]

Answer:

Find the complex solutions using the quadratic formula.

x

=

−

b

−

√

b

2

−

4

c

2

x

=

−

b

+

√

b

2

−

4

c

2

Step-by-step explanation:

8 0
3 years ago
Please helppppp !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
LuckyWell [14K]

Answer:

BH = 16

Step-by-step explanation:

The centroid theorem states that the centroid of a triangle is 2/3 of the distance from a vertex to the midpoint of the opposite side.

That means that BH is 2/3 of the length BF.

BH = (2/3)(BF)

BH = (2/3)(24)

BH = 16

7 0
3 years ago
20 POINTS BRAINLIEST
RSB [31]

Answer:

C

Step-by-step explanation:

Exponential decay should be in this format A = Ao × e^(-kt)

7 0
3 years ago
I need the full answers can anyone help
irina [24]

Answer:

Look it up

Step-by-step explanation:

You can look at the questions online

5 0
3 years ago
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