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3 years ago

Solve for X please help

Mathematics

2 answers:

lbvjy [14]3 years ago

8 0

Answer:

71 degrees

Step-by-step explanation:

Sum of three angles of triangle=180

Let's find the third angle

73+36=109

180-109=71

Vertical angles are congruent so x= angle 3

So x is 71 degrees

ruslelena [56]3 years ago

4 0

Answer:

79 degrees

Step-by-step explanation:

Remember: Triangles always add up to 180 degrees.

x is vertical to the missing angle in the triangle, which means x and the missing angle are equal.

to find the missing angle in the triangle, you add up the other angle measurements and subtract from 180.

36+73=109

180-109=71

The third mising angle is 71 degrees.

this means x is also 71.

Hope this helps!

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Diano4ka-milaya [45]

Answer:

3 should be put in the box in the upper left corner, since it represents the number of students who have neither a cat or a dog.

15 should be put in the box to the left, since that's how many students who have cats.

Same goes for the box to the right, in which 16 should be put, since 16 students have a dog.

And finally, how do we find the number in the middle?

Well, we know that in 25 students, 3 don't have either a cat or dog, so 22 have pets.

However, the total of the people who have dogs and the people who have cats is 15 + 16 = 31 students!

This is because some people have both cats and dogs.

It's pretty simple to find that number, since all you have to do is to subtract 22 from 31, which comes out to 9.

Hence, 9 should be put in the middle box, which represents students who have both a cat and a dog.

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Step-by-step explanation:

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3 years ago

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Vlad [161]

Answer:

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Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The nth term of a sequence is 20-n^2

Nimfa-mama [501]

Answer:

a) 20 - 3^2 = 11

b) 5th, 20 - 5^2 = -5

Step-by-step explanation:

The answer assumes your terms begin at 1. If the terms begin at zero

a) 16

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3 years ago

What is the area of a triangle whose vertices are X(1, 1), Y(3, -1), and Z(4,4)?

shepuryov [24]

Answer:

Step-by-step explanation:

Note that in this diagram, point A represents point X, point B represents point Y, and point C represents point Z.

From the diagram, it appears as if $\overline{XZ} \perp \overline{XY}$ . To determine if this is the case, we can find the slopes of both segments.

$m_{\overline{XZ}}=\frac{4-1}{4-1}=1\\m_{\overline{XY}}=\frac{-1-1}{3-1}=-1$

Since these slopes are negative reciprocals, we know that they are perpendicular.

This means we can use the formula $A=\frac{1}{2}bh$ , where b is the base (XY) and h is the height (XZ).

Note these are interchangeable.

Using the distance formula,

$XY=\sqrt{(3-1)^{2}+(-1-1)^{2}}=2\sqrt{2}\\XZ=\sqrt{(4-1)^{2}+(4-1)^{2}}=3\sqrt{2}$

This means the area is $\frac{1}{2}(2\sqrt{2})(3\sqrt{2})=\boxed{6}$

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2 years ago

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scoray [572]

Answer:

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3 years ago