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3 years ago

Write the point- slope form of the equation of the line through the given point with the given slope

Mathematics

1 answer:

pashok25 [27]3 years ago

8 0

Answer:

y=mx+b

y=-1x-4

y=2x+4

Step-by-step explanation:

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Please help me I don't know how to do this

dem82 [27]

To find ten percent, you divide by ten. Then multiply that answer by five to get fifty percent. Subtract that answer from the original price. But because this one is fifth you could just divide by two.

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3 years ago

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How many sixteenths are in 15 sixteenths

11Alexandr11 [23.1K]

There are 15 sixteenths in 15/16ths (think about it like decimals.)

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3 years ago

A town has a population of 72,700 and grows at a rate of 3.5% every year. Which equation represents the town’s population after

Allushta [10]

Answer:

for 4 years: $72,700 + 1.035^4(72,700)$

For n years: $72,700 + 1.035^n(72,700)$

Step-by-step explanation:

Since each year the growth rate is 3.5 of the last year, n will represent the number of years.

$72,700 + 1.035^n(72,700)$

Therefore since n is 4, the equation will be:

$72,700 + 1.035^4(72,700) =72,700 + 1.15(72,700)$

Therefore this equation represents the town after four years.

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3 years ago

Martha estimated there were 80 marbles in a jar for a contest. The actual number of marbles in the jar was 102. What was the per

SpyIntel [72]

Answer:

11%.

Step-by-step explanation:

Step-by-step explanation:

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3 years ago

3x(x + 6) = -10

emmasim [6.3K]

Answer:

Step-by-step explanation:

Expand it: $3x^2 + 18x = -10$

Add 10 to both sides: $3x^2 + 18x + 10 = 0$

Divide both sides by 3: $x^2 + 6x + \frac{10}{3} = 0$

Find a, b for $(x + a)^2 + b = x^2 + 2x + a^2 + b \overset{!}{=} x^2 + 6x + \frac{10}{3}$

It’s $a = \frac{6}{2} = 3 \land b = \frac{10}{3} - a^2 = 3 + \frac{1}{3} - 9 = -6 + \frac{1}{3}$

So, inserting it leads to: $(x+3)^2 -6 + \frac{1}{3} = 0$

Subtract b from both sides: $(x+3)^2 = 6-\frac{1}{3}$

Apply square root to both sides and consider the two solutions: $x + 3 = \pm\sqrt{6-\frac{1}{3}}$

Subtract 3 from both sides and you get $x = -3 \pm \sqrt{6 - \frac{1}{3}}$

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3 years ago