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3 years ago

First picture answers-(1) 3 4 7 12

Mathematics

1 answer:

Digiron [165]3 years ago

4 0

The exterior angle is ∠3 and ∠BAC is 78°

Step-by-step explanation:

An exterior angle is one formed by one side of a triangle and extension of an adjacent side of the triangle.The sum of two non-adjacent interior angles will equal the measure of the exterior angle of the triangle.

In finding the value of ∠BAC first find ∠BCA (180°-113°=67°) ⇒sum of angles formed in a straight line add up to 180°

∠BAC= 180°-(∠ABC +∠BCA)⇒sum of angles in a triangle

∠BAC=180°-(35°+67°)

∠BAC=180°-102°=78°

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Angles : brainly.com/question/11850487

Keyword : Angles

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4 years ago

Solve for x and y y = 2x + 1 y = 4x - 1

Darya [45]

Answer:

y=3 x=1

Step-by-step explanation:

Let's solve your equation step-by-step.

2x+1=4x−1

Step 1: Subtract 4x from both sides.

2x+1−4x=4x−1−4x

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4 years ago

The ratio of Aziz's money to Osman's money was 2:1 at first. After Aziz spent $10 ratio became 4:3. How much money did each boy

Dvinal [7]

Answer:

Aziz's money was $30

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Step-by-step explanation:

Let

x-----> Aziz's money at first

y-----> Osman's money

we know that

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$x=2y$ ------> equation A

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substitute equation A in equation B and solve for y

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Aziz's money was $30

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3 years ago

A series RLC circuit contains an inductor with a value of 200 millihenries and a capacitor with a value of 0.1 microfarad. What

vaieri [72.5K]

Answer:

1125.4 Hz

Step-by-step explanation:

The resonant frequency is the frequency at with the inductive reactance is equal to the capacitive reactance. It is given by the relation ...

$f=\dfrac{1}{2\pi\sqrt{LC}}$

where L is in henries, and C is in farads.

For the given circuit values, the resonant frequency is ...

$f=\dfrac{1}{2\pi\sqrt{0.2\cdot0.1\times10^{-6}}}\approx1125.4$

The resonant frequency of this circuit is about 1125.4 hertz.

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