2 years ago

How many solutions does this linear system have? y = 2x-5 -8x – 4y = -20

Mathematics

1 answer:

krek1111 [17]2 years ago

7 0

Answer:

it has only 1 solution

Step-by-step explanation:

(the lines only intersect once)

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emmasim [6.3K]

Answer:

The radius of the circle r=12.

The area of a circle is 144π.

Step-by-step explanation:

The radius of the circle is r where 2πr=24π, r=12.

The area of a circle with radius 12 is

A=πr², A=π12², A=144π.

4 0

1 year ago

What is the quotient of 7035/15 pls answer this fast

alexgriva [62]

<span>What is the quotient of 7035/15

469 is equivalent to 7035/15

because 7035/15=469</span>

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2 years ago

A scientist writes the equation n(h)100e^0.25h to model the growth of a certain bacteria in a petri dish, where N represents the

Natasha2012 [34]

Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

$n(h)=100e^{0.25h}$

where, N represents the number of bacteria after 'h' hours.

So, we have given that there are 450 bacteria present.

N = 450

According to question,

$450=100e^{0.25h}\\\\\frac{450}{100}=e^{0.25h}\\\\4.5=e^{0.25h}\\\\\text{Taking natural log 'ln' on both sides}\\\\\ln (4.5)=0.25h\\\\1.50=0.25h\\\\h=\frac{1.50}{0.25}\\\\h\approx 6\ hours$

Hence, Second option is correct.

8 0

2 years ago

Read 2 more answers

Solve each porportion 10/k =8/4 and tell me how you git your answer

Anettt [7]

It is only 1 proportion, and it is 1 problem.

10 8
---- = ---
X 4

1). It is 8x=40
2). Divide both sides
by 8
3). X=5

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2 years ago

Assume 450,000 people line up on the streets to see the macys thanksgiving parade in 2012. If attendance is expected to increase

Helga [31]

Answer:

Step-by-step explanation:

130/100*450000=585,000 people

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2 years ago