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3 years ago

Please help! 30 points and brainliest.

Mathematics

2 answers:

Leya [2.2K]3 years ago

5 0

You would have to flip the first shape to face the same direction as the second one. the corresponding line to ab is sr, bc to sp, ad to rq, and cd to pq :)

IgorC [24]3 years ago

5 0

Answer:

□DCBA ≅ □QPSR

Explanation:

Angles

$\displaystyle ∠Q ≅ ∠D \\ ∠P ≅ ∠C \\ ∠S ≅ ∠B \\ ∠R ≅ ∠A$

Sides

$\displaystyle RQ = AD \\ SR = BA \\ SP = BC \\ QP = DC$

I am joyous to assist you anytime.

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The cost of printing a store flyer is $450 for 1000 copies and $880 for 2000 copies.

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3 years ago

What is the Radical of 125???????

Serhud [2]

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3 years ago

A sample of a radioactive isotope had an initial mass of 360 mg in the year 1998 and

RUDIKE [14]

Answer:

193 mg

Step-by-step explanation:

Exponential decay formula:

$A_t = A_0e^r^t$
where Aₜ = mass at time t, A₀ = mass at time 0, r = decay constant (rate), t = time

Our known variables are:

1998 to the year 2004 is a total of t = 6 years.
The sample of radioactive isotope has an initial mass of A₀ = 360 mg at time 0 and a mass of Aₜ = 270 mg at time t.

Let's solve for the decay constant of this sample.

$270=360e^-^r^(^6^)$
$270=360e^-^6^r$
$\frac{3}{4} =e^-^6^r$
$\text{ln} (\frac{3}{4} )= \text{ln}(e^-^6^r)$
$\text{ln} (\frac{3}{4} )=-6r$
$r=-\frac{\text{ln}\frac{3}{4} }{6}$
$r=0.04794701$

Using our new variables, we can now solve for Aₜ at t = 7 years, since we go from 2004 to 2011.

Our new initial mass is A₀ = 270 mg. We solved for the decay constant, r = 0.04794701.

$A_t=270e^-^(^0^.^0^4^7^9^4^8^0^1^)^(^7^)$
$A_t=270e^-^0^.^3^3^5^6^2^9^0^7$
$A_t=193.01982213$

The expected mass of the sample in the year 2011 would be 193 mg.

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3 years ago

What is the height of a rectangle with an area of 105 and a base of 15

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Answer:

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just don’t want to waste my time in case you don’t want me to :)

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3 years ago

List 2 possible solutions for the inequality x < 9.

KATRIN_1 [288]

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3 years ago