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klio [65]
3 years ago
14

Please help me with my question I will like and mark as brainliest

Mathematics
1 answer:
lutik1710 [3]3 years ago
6 0

Answer:

For 2a, we are completing the square (see the image below)

To find the stationary point (2b) you change the sign of the number inside the brackets and keep the number outside the same i.e (-2, 7)

Hope this helps!

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Can someone help me get the answer for this please
sergejj [24]

Answer:

Just put them all on different graphs and add them

Step-by-step explanation:

5 0
3 years ago
An equilateral triangle has a side length of 12 centimeters. What is the measure, in centimeters, of its altitude?
STatiana [176]
Altitude forms a 30-60-90 (or 1-sqrt(3)-2) triangle. The hypotenuse is the equilateral triangle's side length, 12 centimeters. The altitude is the sqrt(3) side. 12 / sqrt(3) = 6sqrt(3). Therefore the altitude of the triangle is 6 * sqrt(3) centimeters.
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4 years ago
I need help finding the answer to this question on edge.
Aliun [14]

Answer:

6

Step-by-step explanation:

We need to evaluate :-

\rm\implies \displaystyle\rm\sum^4_n   (-1)^n (3n + 2 )

Here the \Sigma is the sum operator . And here we need to find the sum from n = 1 to n = 4 . We can write it as ,

\rm\implies (-1)^1 ( 3*1 +2) + (-1)^2 ( 3*2+2) + (-1)^3(3*3+2) + (-1)^4(3*4+2)

Now we know that for odd powers of -1 , we get -1 and for even powers we get 1 . Therefore ,

\rm\implies -1 ( 3 + 2 ) + 1 (6+2)+-1(9+2)+1(12+2)

Now add the terms inside the brackets and then multiply it with the number outside the bracket . We will get ,

\rm\implies -1 * 5 + 1 * 8 + -1*11 + 1*14 \\\\\rm\implies -5 + 8 - 11 + 14 \\\\\rm\implies\boxed{\quad 6 \quad}

<u>Hence</u><u> the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>6</u><u>.</u>

6 0
3 years ago
If angles are supplementary, then one of the angles is an obtuse angle. Answers are these Sometimes always or never pick one
olga2289 [7]
An obtuse angle measures 180 degrees if angles are supplementary then one of the angles is about an obtuse angle
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2 years ago
Tony is making goody bags for her party each bag has six toys for pieces of candy and 12 stickers
Andrei [34K]

Number of bag = x

Then, number of candies & Strickers would be 6x & 12x respectively..


5 0
4 years ago
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