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Yuki888 [10]
3 years ago
11

In a parallelogram ABCD, the measure of angle A is three times the measure of angle B. Find all the four angles of the parallelo

gram.​
please help
Mathematics
2 answers:
worty [1.4K]3 years ago
8 0
Mrnfnmemd d don’t. F f fr
olganol [36]3 years ago
6 0
So, the measure of Angle A be '3x'. Since ABCD is a parallelogram, so the measure of opposite angle is equal and consecutive angles are supplementary. On putting the values, we get; Hence The measure of ∠A, ∠B, ∠C and ∠D are 135°, 45°, 135° and 45° respectively.


(Here you go, sorry if this didn’t help)
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Answer:

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Step-by-step explanation:

25.50÷6= 4.25

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3 years ago
Steel is formed by combining masses of carbon and iron in the ratio 1:49. How many pounds of iron would it take to create 10 pou
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Answer:

9.8

Step-by-step explanation:

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3 years ago
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dedylja [7]
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8 0
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Hi, help with question 18 please. thanks​
Vadim26 [7]

Answer:

See Below.

Step-by-step explanation:

We are given the equation:

\displaystyle y^2 = 1 + \sin x

And we want to prove that:

\displaystyle 2y\frac{d^2y}{dx^2} + 2\left(\frac{dy}{dx}\right) ^2 + y^2 = 1

Find the first derivative by taking the derivative of both sides with respect to <em>x: </em>

<em />\displaystyle 2y \frac{dy}{dx}  = \cos x<em />

Divide both sides by 2<em>y: </em>

<h3><em />\displaystyle \frac{dy}{dx} = \frac{\cos x}{2y}<em /></h3>

<em />

Find the second derivative using the quotient rule:

\displaystyle \begin{aligned} \frac{d^2y}{dx^2} &= \frac{(\cos x)'(2y) - (\cos x)(2y)'}{(2y)^2}\\ \\  &= \frac{-2y\sin x-2\cos x \dfrac{dy}{dx}}{4y^2} \\ \\ &= -\frac{y\sin x + \cos x\left(\dfrac{\cos x}{2y}\right)}{2y^2} \\ \\ &= -\frac{2y^2\sin x+\cos ^2 x}{4y^3}\end{aligned}

Substitute:

\displaystyle 2y\left(-\frac{2y^2\sin x+\cos ^2 x}{4y^3}\right)  + 2\left(\frac{\cos x}{2y}\right)^2 +y^2 = 1

Simplify:

\displaystyle \frac{-2y^2\sin x-\cos ^2x}{2y^2} + \frac{\cos ^2 x}{2y^2} + y^2 = 1

Combine fractions:

\displaystyle \frac{\left(-2y^2\sin x -\cos^2 x\right)+\left(\cos ^2 x\right)}{2y^2} + y^2 = 1

Simplify:

\displaystyle \frac{-2y^2\sin x }{2y^2} + y^2 = 1

Cancel:

\displaystyle -\sin x + y^2 = 1

Substitute:

-\sin x + \left( 1 + \sin x\right) =1

Simplify. Hence:

1\stackrel{\checkmark}{=}1

Q.E.D.

8 0
3 years ago
The total land area of the United States is about 3,483,511 square miles more than the total land area of Tennessee, which is ab
Savatey [412]

Answer:

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Step-by-step explanation:

Given:

total land area of Tennessee = 53,927 square miles

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3 0
3 years ago
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