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3 years ago

Find the number of degrees in the third angle of

Mathematics

1 answer:

Irina-Kira [14]3 years ago

4 0

Answer:

Step-by-step explanation:

triangles' inside angles always equal 180. so 100+43=143. 180-143=37

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The sum of 3x^2+4x-2 and x^2-5x+3 is

Diano4ka-milaya [45]

The sum would be

4x^2-x+1

add like terms.

3x^2+x^2

4x^2

4x+-5x

-x

3-2

3 0

3 years ago

Read 2 more answers

Solve the following quadratic by<br> completing the square.<br> y = x2 + 10x + 10

IgorC [24]

Answer:

Step-by-step explanation:

$y = x^2+10x+10\\\\y=x^2+10x+25-25+10\\\\y=(x+5)^2-15\\\\y=0\quad\iff\quad (x+5)^2-15=0\\\\(x+5)^2=15\\\\x+5=\pm\sqrt{15}\\\\x=-5-\sqrt{15}\quad or\quad x= -5+\sqrt{15}$

3 0

3 years ago

GUYS PLZ HELP ME!!!!!!

siniylev [52]

Answer:

B E F G

Step-by-step explanation:

Polygons are 2 dimensional shapes with straight edges (no curved edges). The shape needs to be closed up entirely to be a polygon. It cannot have any intersecting line segments

A can't be a polygon because the shape isn't closed up entirely

C can't be a polygon because it is a 3d shape

D can't be a polygon because it has curved edges.

H can't be a polygon because it isn't closed up (there are no line segments).

I can't be a polygon because polygons cannot have intersecting lines

J can't be a polygon because polygons cannot have intersecting lines

I hope this helps! If it does, a rate or brainliest would be much appreciated. :)

7 0

3 years ago

For what values of x is 12x-6 < 13x + 10

slamgirl [31]

Answer:

x > 16

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask

8 0

3 years ago

Line segment GT contains the point G(−3, 5) and a midpoint at A(1, −4). What is the location of endpoint T?

algol [13]

Imagine you're moving along the segment. Since the midpoint is in the middle of the segment (obviously), it means that when you've traveled from G to A, you're halfway through your journey, along both x and y directions. So, let's break the problem in two and analyze both directions.

Along the x axis, you've moved from -3 to 1, so you moved 4 units forward. This means that you have 4 units still to go, and your journey will end at coordinate 5.

Similarly, along the y axis, you've moved from 5 to -4, so you moved 9 units downward. This means that you have 9 units still to go, and your journey will end at coordinate -13.

So, the coordinates of the endpoint are $T = (5,-13)$