4 years ago

Write the following expression as a trinomial in standard form. 3(x+3)2 – 2(x + 3) +4

Mathematics

1 answer:

cestrela7 [59]4 years ago

4 0

Answer:

4(x+4)

Step-by-step explanation:

multiply the numbers

3(x+3)×2 - 2(x+3) +4

collect like terms

6(x+3) - 2(x+3) +4

Factor the expression

4(x+3)+4

Add the numbers

4x + 12 +4

4x + 16

4(x+4)

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The formula for a circle is (x - h)^2 + (y - k)^2 = r^2
Where (h, k) is the center and r is the radius.
x^2 + (y - 8)^2 = 25
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So the radius is sqrt 25 or 5.
Radius = 5

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3 years ago

Marissa wants to babysit to earn some extra money. She already has $250 in her bank account. The equation f(x) = 22x + 250 can b

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Answer:

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likoan [24]

Answer:

Step-by-step explanation:

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Proportion

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3 years ago

Construct a 99% confidence interval for the population standard deviation of white blood cell count (in cells per microliter). A

kogti [31]

Answer:

The correct option is 1.148 < σ < 6.015

Explanation:

The 99% confidence interval for the standard deviation is given below:

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Where:

$\chi^{2}_{\frac{0.01}{2} }=18.548$

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$\sqrt{\frac{(7-1)2.019^{2}}{18.548} }$

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4 years ago

Use the properties of rational exponents to simplify 6/6 1/4

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Answer:

one

Step-by-step explanation:

Use the properties of rational exponents

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