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3 years ago

Below is a plan of a vegetable plot.

Mathematics

1 answer:

Over [174]3 years ago

3 0

10.2 all you have to do is add up all the sides... hope this helps!

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Using the graph below, what is the value of f(6) ?

Dima020 [189]

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$f(6) = - 2$

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3 years ago

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What is the first thing you need to add 1/9 + 5/6

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Find the greastest common factor

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3 years ago

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Which of the following equations have complex roots?

mestny [16]

Answer:

Step-by-step explanation:

Complex roots of quadratic functions occur when the <u>discriminant is negative</u>.

<u>Discriminant</u>

$b^2-4ac\quad\textsf{when}\:\:ax^2+bx+c=0$

Evaluate the discriminant of each of the given equations.

$\textsf{A.} \quad 3x^2+2=0$

$\implies a=3, \quad b=0, \quad c=2$

$\implies b^2-4ac=0^2-4(3)(2)=-24$

As -24 < 0 the equation will have complex roots.

$\textsf{B.} \quad 2x^2+1=7x$

$\implies 2x^2-7x+1=0$

$\implies a=2, \quad b=-7, \quad c=1$

$\implies b^2-4ac= (-7)^2-4(2)(1)=41$

As 41 > 0 the equation does not have complex roots.

$\textsf{C.} \quad 3x^2-1=6x$

$\implies 3x^2-6x-1=0$

$\implies a=3, \quad b=-6, \quad c=-1$

$\implies b^2-4ac=(-6)^2-4(3)(-1)=48$

As 48 > 0 the equation does not have complex roots.

$\textsf{D.} \quad 2x^2-1=5x$

$\implies 2x^2-5x-1=0$

$\implies a=2, \quad b=-5, \quad c=-1$

$\implies b^2-4ac=(-5)^2-4(2)(-1)=33$

As 33 > 0 the equation does not have complex roots.

Learn more about discriminants here:

brainly.com/question/27444516

brainly.com/question/27869538

Learn more about complex roots here:

brainly.com/question/26344541

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2 years ago

Calculate the value of A in the statement

tigry1 [53]

please edit your question man

4 0

3 years ago

each side of triangle 6cm if jade want to glue pink ribbon around the premeter of triangle how many ribbon will she need

AnnZ [28]

Answer:

18 cm

Step-by-step explanation:

you multiply 6 by 3 to get the answer

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