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guapka [62]
3 years ago
6

PLEASE HELP!!!!

Mathematics
1 answer:
juin [17]3 years ago
4 0

\displaystyle \sum_{n=1}^{5} (-5 -4(n-1))

\displaystyle =\sum_{n=1}^{5} (-1-4n)

Answer: the summation from n equals one to 5 of quantity negative 1 minus 4 times n

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Please solve equations by completing square
BlackZzzverrR [31]
x^2-4x+1=0\\
x^2-4x+4-3=0\\
(x-2)^2=3\\
|x-2|=\sqrt3\\
x-2=\sqrt3 \vee x-2=-\sqrt3\\
x=2+\sqrt3 \vee x=2-\sqrt3

x^2+6x-9=0\\
x^2+6x+9-18=0\\
(x+3)^2=18\\
|x+3|=\sqrt{18}=3\sqrt2\\
x+3=3\sqrt2 \vee x+3=-3\sqrt2\\
x=-3+3\sqrt2 \vee x=-3-3\sqrt2\\

x^2+20x+3=0\\
x^2+20x+100-97=0\\
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x=-10+\sqrt{97} \vee x=-10-\sqrt{97}

x^2-2x-5=0\\
x^2-2x+1-6=0\\
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x-1=\sqrt6 \vee x-1=-\sqrt6\\
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8 0
3 years ago
Solve the following for x: x = 13.54 2.063 0.14 52.1
Readme [11.4K]
13.54 +2.063 +0.14 +52.1= 67.843
so the answer is D.
6 0
3 years ago
If Q is between A and M and MQ=7.3 and AM =8.5, then QA =
aleksandrvk [35]

Simply put if Q is between A and M then you just subtract MQ from AM to to get QA

8 0
3 years ago
Read 2 more answers
How does the function f(x) = -(x-4)^3 + 2 compare to the parent function f(x) = x^3? Please show and explain all your steps. Tha
Fynjy0 [20]
Translate by vector (4, -2) and reflect over x axis

translate by vector (4, -2) and reflect over x axis
translate by (4, -2) gives (x-4)^2 - 2
reflect over x axis means * -1 = -(x-4)^3 + 2



Mark brainliest please
4 0
3 years ago
Find the value of x in the triangle shown below.
Nostrana [21]

Answer:

68°

Step-by-step explanation:

If its 4.5 by 4 is 56 that means it's 56 on the other side

8 0
3 years ago
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