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2 years ago

BRAINLIEST!! 17. Complete the statement about parallelogram ABCD. ∠BDC ____

Mathematics

2 answers:

bearhunter [10]2 years ago

7 0

The answer should be alternate interior angles are congruent
Explanation
I hope it will help

Vsevolod [243]2 years ago

6 0

Answer:

∠ABD; Alternate Interior angles are congruent

Step-by-step explanation:

Sides AB and DC are congruent and parallel.

The transversal is line BD.

So considering this things, ∠BDC and ∠ABD are congruent through alternate interior angle rule

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How do i solve for x (2x-8)=0

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Answer:

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Step-by-step explanation:

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Is anyone able to figure this out, I can't do this

katrin [286]

Answer:

C. √2 - 1

Step-by-step explanation:

If we draw a square from the center of the large circle to the center of one of the small circles, we can see that the sides of the square are equal to the radius of the small circle (see attached diagram)

Let r = the radius of the small circle

Using Pythagoras' Theorem $a^2+b^2=c^2$

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to find the diagonal of the square:

$\implies r^2 + r^2 = c^2$

$\implies 2r^2 = c^2$

$\implies c=\sqrt{2r^2}$

So the diagonal of the square = $\sqrt{2r^2}$

We are told that the radius of the large circle is 1:

⇒ Diagonal of square + r = 1

$\implies \sqrt{2r^2}+r=1$

$\implies \sqrt{2r^2}=1-r$

$\implies 2r^2=(1-r)^2$

$\implies 2r^2=1-2r+r^2$

$\implies r^2+2r-1=0$

Using the quadratic formula to calculate r:

$\implies r=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\implies r=\dfrac{-2\pm\sqrt{2^2-4(1)(-1)}}{2(1)}$

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2 years ago

Read 2 more answers

13 in a 12 in What is the length of the missing leg? a = inches

8090 [49]

17.69
You can round it if needed

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2 years ago

PLEASE HELP

just olya [345]

Answer:

about 5.2 years

Step-by-step explanation:

$2500 {e}^{.065t} = 3500$

$t = 5.2$

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1 year ago