2 years ago

Just chose a number: 28 or 320

Mathematics

2 answers:

Ymorist [56]2 years ago

6 0

Answer:

Step-by-step explanation:

28 is just a better number I guess

grin007 [14]2 years ago

5 0

320 because it’s bigger

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14.2 as a mixed number.

krek1111 [17]

I think its 14 1/5 (?)

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2 years ago

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A parabola is represented by the equation y = x2 + 6x − 17.

seraphim [82]

X-intercepts: (2.1, 0) and (-8.1, 0)

y-intercept: (0, -17)

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2 years ago

Solve this quadratic equation by completing the square.

nadya68 [22]

Answer:

$x=-3+\sqrt{27}\\ x=-3-\sqrt{27}$

Step-by-step explanation:

Let's find our C value for the quadratic equation.

$(\frac{6}{2})^{2} = 9$

That is our C. Since we added 9 to one side, we have to do the same to the other. We get:

$x^{2} +6x + 9 = 18 + 9\\x^{2} +6x + 9 = 27$

Now, lets form the left side as a binomial squared.

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Let's square both sides now:

$x+3 = (+/-)\sqrt{27}$

Now, we subtract 3 from both sides to isolate the variable, X:

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This means that the answers are:

$x=-3+\sqrt{27}\\ x=-3-\sqrt{27}$

I do not understand your answers though. Answer A makes no sense, answer B is 221, answer C is 115, and answer D also does not make sense. If you could clarify this portion, maybe I can help you find your alphabetic answer

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3 years ago

5. Which expression has the value of -2?

julia-pushkina [17]

B

Explanation:

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2 years ago

Maria calculated that she could make $18,000 over the summer. Instead she ended up making 15,000. Calculate the variance.

Luden [163]

Answer:

3000 i think that's the answer.

Step-by-step explanation:

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