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3 years ago

Please answer... I will mark you brainliest and please list steps of how to solve the problem

Mathematics

1 answer:

Kaylis [27]3 years ago

8 0

Answer: (1: 70 degrees) (2: 110 degrees) (3: 35 degrees)

Step-by-step explanation:

For the first triangle, we know that the angles in total add up to 180 degrees. You already know two angles (40 and 70).

Let's, for now, label angle 1 as x.

40 + 70 + x = 180, since the sum of the angles add up to 180

110 + x = 180, no problems right?

110 - 110 + x = 180 - 110

x = 70

Now there's angle 2.

Let's label angle 2 as y.

We know angle 1 by now, and we should know that y + 70 = 180, since the two angles form a line together. A line is always 180 degrees.

y + 70 = 180

y + 70 - 70 = 180 - 70

y = 110

Now there's the last angle, angle 3

Let's label angle 3 as z

Repeating what we did for angle 1, we already know two angles (110 and 35)

110 + 35 + z = 180

145 + z = 180

145 - 145 + z = 180 - 145

z = 35

There you have it! The answer, but this was the long way. The short way is much simpler, but harder to teach without a one-on-one lesson.

Don't forget units!

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4 years ago

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3 years ago

Read 2 more answers

Suppose integral [4th root(1/cos^2x - 1)]/sin(2x) dx = A What is the value of the A^2?

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$\large \mathbb{PROBLEM:}$

$\begin{array}{l} \textsf{Suppose }\displaystyle \sf \int \dfrac{\sqrt[4]{\frac{1}{\cos^2 x} - 1}}{\sin 2x}\ dx = A \\ \\ \textsf{What is the value of }\sf A^2? \end{array}$

$\large \mathbb{SOLUTION:}$

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4 0

2 years ago

What is the area of the circle? Use 3. 14 as an estimate for pi.

Ierofanga [76]

153.86m^2

Step-by-step explanation:

diameter=14

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area of circle=pi×r^2

"" =3.14×7^2

=3.14×7×7

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3 years ago

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katen-ka-za [31]

Answer:

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Step-by-step explanation:

5 0

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