Complete the square root... I NEED IT NOW PLEASE?!

Mathematics

1 answer:

pochemuha4 years ago

5 0

I believe the answer is C

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What two numbers add up to 1 but multiply to -30

Nostrana [21]

$x;\ y-the\ numbers\\\\ \left\{\begin{array}{ccc}x+y=1&\to x=1-y\\xy=-30\end{array}\right\\\\subtitute\ x=1-y\ to\ second\ equation:\\\\(1-y)y=-30\\y-y^2+30=0\\-y^2+y+30=0\ \ \ \ \ |change\ signs\\y^2-y-30=0\\y^2-6y+5y-30=0\\y(y-6)+5(y-6)=0\\(y-6)(y+5)=0\iff y-6=0\ or\ y+5=0\\\Downarrow\\y=6\ or\ y=-5$

$x=1-y\\\\for\ y=6\Rightarrow x=1-6=-5\\\\for\ y=-5\Rightarrow x=1-(-5)=1+5=6\\\\=======================================\\Answer:\boxed{6}\ and\ \boxed{-5}$

4 0

3 years ago

A) write an explicit formula for the sequence 12, 16, 20, 24 B) Find the 11th term of the sequence *

Vladimir [108]

Answer:

I JUST LOVE GETTING POINTS

Step-by-step explanation:

4 0

3 years ago

The Osborn Buliding has two-thirds as many stories as the Xerox Tower. The Osborn Buliding has 20 stories. How many stories does

gizmo_the_mogwai [7]

The Xerox tower has 30 stories

3 0

4 years ago

Read 2 more answers

In the paper airplane shown

Murrr4er [49]

Answer:

∠GHE = 55°

Step-by-step explanation:

ABCD is a quadrilateral (4 sided figure). We know that the sum of the interior angles (4 angles) of a quadrilateral in 360°.

Thus, A + B + C + D = 360

we know b = c = 90 and a = 125, thus we can find D.

125 + 90 + 90 + D = 360

305 + D = 360

D = 360 - 305 = 55°

Note: since Quadrilateral ABCD is congruent to Quadrilateral EFGH, then the measure of D is equal to measure of H (Angle GHE). Thus

∠GHE = 55°

2nd answer choice is correct

5 0

3 years ago

How do i solve this expression out

sergiy2304 [10]

Use the distrubution property and multiply -16 by -8s and 17.

128s-272

8 0

4 years ago