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3 years ago

Which pairs of angles are supplementary? A) ∠BCD and ∠BAD B) ∠BCD and ∠ABC C) ∠BCD and ∠CDA D) ∠ABC and ∠BAD

Mathematics

1 answer:

Bogdan [553]3 years ago

4 0

<span>∠ABC ∠BAD is the correct answer

</span>

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What is the vertex? y=2x^2+28x-8

ra1l [238]

Fist convert the equation to vertex form

y = 2(x^2 + 14x) - 8
y = 2 [(x + 7)^2 - 49] - 8
y = 2(x + 7)^2 - 106

So the vertex is at (-7,-106)

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2 years ago

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What answer is this?

klemol [59]

Answer:

option B

$\frac{31}{50}-\frac{4}{25} i$

Step-by-step explanation:

Given in the question a complex fraction

To divide complex numbers, you must multiply by the conjugate. To find the conjugate of a complex number all you have to do is change the sign between the two terms in the denominator.

$\frac{5+4i}{6+8i}(\frac{6-8i}{6-8i})$

Distribute (or FOIL) in both the numerator and denominator to remove the parenthesis.

$\frac{30+24i-40i-32i²}{36-64i^{2} }$

Simplify the powers of i, specifically remember that i² = –1.

$\frac{62-16i}{36+64}$

$\frac{62}{100}-\frac{16i}{100}$

simply

$\frac{31}{50}-\frac{4}{25}i$

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3 years ago

Jessica wants to buy a purse that costs $25.00. She has already saved

jekas [21]

Answer:

Step-by-step explanation:

19-25

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2 years ago

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the sum of the measurement of two angles is 183.61 angle one has a measure of 54 what is the measure in degrees of the second an

Dennis_Churaev [7]

Hfhfjhfhchfjfnnfnfncncbc

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2 years ago

A population of 55 foxes in a wildlife preserve doubles in size every 14 years. The function y equals 55 times 2 Superscript x

Pavlova-9 [17]

Since <em>x</em> is the number of 14-year periods, the first thing we do is divide 28 years by 14. 28/14=2. Now we use that in our function, $y=55*2^x$ .

$y=55*2^2=55*4=220$
There will be 220 foxes after 28 years.

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3 years ago