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3 years ago

PLS HELP I WILL MARK BRAINLIEST!!!

Mathematics

1 answer:

vazorg [7]3 years ago

3 0

So first to figure out the total cost of one hour, add 20 and 12 and get 32. So if x=1, y=32, so our equation would be y=32x. To fill out the chart plug in the values of x. You can then draw the coordinates matching the table.

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In the right triangle shown, m∠A=30°m, AB = 12\sqrt{3}AB=12 How long is AC?

Artemon [7]

The correct length of AC is 18

3 0

3 years ago

Study the geometric sequence {-4, -84, -1764, -37044, ...}.

Nonamiya [84]

Answer:

$\bold{a_n=(-4)21^{n-1}}$

Step-by-step explanation:

$a_1=-4\,,\ a_2=-84\,,\ a_3=-1764\,,\ a_4=-37044\quad\implies\ \ r=21$

{-84:(-4)=21 and -1764:(-84)=21 and -37044:(-1764)=21}

geometric sequence formula: $a_n=a_1r^{n-1}$

$a_1=-4\quad and \ \ r=21$

$a_n=(-4)21^{n-1}$

3 0

4 years ago

Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many h

Elden [556K]

Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

$x=5\frac{1}{4}\ hours$

convert mixed number to an improper fraction

$5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours$

$x=\frac{21}{4}\ hours$ -------> equation A

$y=\frac{1}{2}x$ ------> equation B

Substitute equation A in equation B

$y=\frac{1}{2}*\frac{21}{4}=\frac{21}{8}\ hours$

convert an improper fraction to a mixed number

$\frac{21}{8}\ hours=2.625=2+0.625=2+\frac{5}{8}=2\frac{5}{8}\ hours$

therefore

the answer is the option B

$2\frac{5}{8}\ hours$

5 0

3 years ago

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Please help 20% of 3km = ?

Lorico [155]

20% of 3km is 0.6 Kilometer

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4 years ago

Please show your work.

Inessa [10]

The answer would be a reflection over the x-axis and then a reflection over the y-axis

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3 years ago

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