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Evgesh-ka [11]
3 years ago
5

PLEASE HELP ME GUYS :((​

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
7 0

Answer:

8 - 8\sqrt{3}

Step-by-step explanation:

For this problem you have to use the 45-45-90 triangle theorem and 30-60-90 theorem.

For 45-45-90, the isosceles sides = 4, so the hypotenuse of the 30-60-90 triangle is 4 times 2, which is 8. If x is 8, then since y is the side across from the 60 angle, y is 8\sqrt{3. Since this really can't be simplified after y is subtracted from x, the final answer is just 8 - 8\sqrt{3}.

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What type of system is the following set of equations?
iVinArrow [24]
-3x+y=-2 \\
y-4=-6x \ \ \ |\times (-1) \\ \\
-3x+y=-2 \\
\underline{-y+4=6x} \\
-3x+y-y+4=6x-2 \\
-3x+4=6x-2 \\
-3x-6x=-2-4 \\
-9x=-6 \\
x=\frac{-6}{-9} \\
x=\frac{2}{3} \\ \\
y-4=-6 \times \frac{2}{3} \\
y-4=-4 \\
y=-4+4 \\
y=0 \\ \\
(x,y)=(\frac{2}{3},0)

The system has one solution so it's A. consistent and independent.
7 0
3 years ago
HELP ME PLEASE ASAP!!!!!!!!
sergij07 [2.7K]

Answer:

  (2, 14), (3, 7)

Step-by-step explanation:

The way these angles are numbered, corresponding angle numbers differ by 4, 8, or 12.

Corresponding angles are ...

  Angle 2 and Angle 14 . . . . . . numbers differ by 12

  Angle 3 and Angle 7 . . . . . . . numbers differ by 4

_____

If a given angle is Northwest of the intersection, any corresponding angle will also be Northwest of its intersection. Corresponding angles are ...

  northwest: {1, 5, 9, 13}

  northeast: {2, 6, 10, 14}

  southeast: {3, 7, 11, 15}

  southwest: {4, 8, 12, 16}

Any pair of numbers from the same set will be corresponding angles.

8 0
3 years ago
After the release of radioactive material into the atmosphere from a nuclear power plant at Chernobyl (Ukraine) in 1986, the hay
a_sh-v [17]

Answer:

$t=26.47$

i took test and got it right

6 0
3 years ago
which of the following best describes a regular polygon when the measure of each exterior angle is 36 ?
zhenek [66]
<span>Even though you have no choices listed:

Each Exterior Angle = Each Central Angle = (360 degrees) ÷ (Number of Sides)
</span>Each Exterior Angle = <span>(360 degrees) ÷ (Number of Sides)
</span><span>(Number of Sides) = 360 / 36
</span><span>Number of Sides = 10
a 10-sided polygon is a decagon

</span>
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%3D%20%20%5Cfrac%7B144%7D%7B25%7D%20" id="TexFormula1" title=" {x}^{
ss7ja [257]

Answer:

x²=144/25

x=±12/5

Step-by-step explanation:

Hope it helps u

4 0
3 years ago
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