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3 years ago

6

Can someone help me with this

2 answers:

vovikov84 [41]3 years ago

6 0

Answer:

y=90 degrees.

Step-by-step explanation:

gulaghasi [49]3 years ago

4 0

Answer:

Y is 90 degrees.

Step-by-step explanation:

This is an equalterial triangle which means all of the angles are the same. The angle for the upper part of the triangle is 60 as well. We can do 2x=60 because they add up to the angle which is 60. This gives us x=30. If x=30 and the other angle is 60, then the other angle has to be 90 because all triangle has an angle sum of 180. So 30 +60 + 90= 180. Hope this helps!

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Write the standard form of the equation of the circle described below.

Luden [163]

Equation of circle is $x^2+(y+2)^2=26$

Step-by-step explanation:

The standard form of the equation of circle is:

$(x-h)^2+(y-k)^2=r^2$

where (h,k) is the center of the circle and r is the radius of circle.

We need to find the radius of circle r by using distance formula:

$r=d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}\\r=d=\sqrt{(-5-0)^2+(-1-(-2))^2}\\r=d=\sqrt{(-5)^2+(1)^2}\\r=d=\sqrt{25+1}\\r=d=\sqrt{26}$

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the equation of Circle is:

$(x-h)^2+(y-k)^2=r^2\\(x-0)^2+(y-(-2)^2=26\\x^2+(y+2)^2=26$

Keywords: Equation of circle

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4 0

3 years ago

A shipping crate is packed with unit cubes. The length of the crate is 4 units, the width is 2 units and the height is 4 units.

Dmitry_Shevchenko [17]

Answer:

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Step-by-step explanation:

Length of the crate has been given as 4 units

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4 0

3 years ago

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romanna [79]

2700 is the answer. You do 9 times 3 then add the 0s

8 0

3 years ago

Read 2 more answers

Use the figure below to determine the exact value of the given function sin2 0

Strike441 [17]

Answer:

sin2θ = $\frac{12}{13}$

Step-by-step explanation:

Since, sin2θ = 2sinθcosθ

From the triangle given in the picture,

Opposite side of angle θ = 2 units

Adjacent side of angle θ = 3 units

Hypotenuse = $\sqrt{2^2+3^2}$ = $\sqrt{13}$ [By Pythagoras theorem]

sinθ = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

= $\frac{2}{\sqrt{13}}$

cosθ = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

= $\frac{3}{\sqrt{13} }$

sin2θ = $2\times (\frac{2}{\sqrt{13}})(\frac{3}{\sqrt{13}})$

= $\frac{12}{13}$

7 0

2 years ago