3 years ago

Consider the steps for solving 3x2 – 42x + 9 = -5 for x by completing the square.

Mathematics

1 answer:

Karolina [17]3 years ago

3 0

The answer to this question will be C

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X2 + 3x + 2<br> What is the factor?

musickatia [10]

Answer: (x+1)(x+2)
step by step explanation:

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3 years ago

Jerry has reached 39% of his weekly exercise time goal so far this week if he has exercise for a total of 78 minutes this week.

kompoz [17]

Answer:

his weekly exercise time goal in minutes = 200 minutes

Step-by-step explanation:

Jerry has reached 39% of his weekly exercise time goal.

so far this week ,he has exercise for a total of 78 minutes this week.

39% of total = 78 minutes

100%= x

X=100*78/39

X=100*2

X= 200 minutes

his weekly exercise time goal in minutes = 200 minutes

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3 years ago

Kate buys 12 pounds of apples each pound costs $3 if she gives the cashier two $20 billls

34kurt

12x3=36
40-36=4
Answer $4

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2 years ago

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Which polynomial function has a leading coefficient of 1 and roots 2i and 3i with multiplicity 1? f(x) = (x – 2i)(x – 3i) f(x) =

kykrilka [37]

Answer:

$P(x)=(x-2i)(x-3i)$

Step-by-step explanation:

Build a Polynomial Knowing its Roots

If we know a polynomial has roots x1, x2, ..., xn, then it can be expressed as:

$P(x)=a(x-x1)(x-x2)...(x-xn)$

Where a is the leading coefficient.

Note the roots appear with their signs changed in the polynomial.

If the polynomial has a leading coefficient of 1 and roots 2i and 3i with multiplicity 1, then:

$P(x)=1(x-2i)(x-3i)$

$\mathbf{P(x)=(x-2i)(x-3i)}$

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2 years ago

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If the diameter of a circle is 16 cm, find it’s radius

Pavel [41]

Answer:

radius is 8cm

Step-by-step explanation: radius is half of diameter so 16/2= 8

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2 years ago

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