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2 years ago

What is an 1 equation of the line that passes through the points (-2,1) and (6, – 7)?

Mathematics

1 answer:

bekas [8.4K]2 years ago

3 0

Answer:

y - 1 = -1 * (x + 2) < point-slope form

Step-by-step explanation:

y-y₁=m(x-x₁) then I just inserted the following numbers to fit the formula. I hope this helps!

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What is y in 15=-7.5x^2+86x+702

dexar [7]

Answer:

add 15x and 86x equal to 71x

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3 years ago

What is cos 30º? O A. 13 B. 1 Oc. O D. 3 2 E. O F. 1 /

babunello [35]

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3 years ago

How do I find an absolute value function from a graph?

elixir [45]

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3 years ago

Factorize this expression completely using (a-b)² formula 3a²- 36a + 108

Novosadov [1.4K]

Answer:

$3a^2 - 36a + 108 = (\sqrt{3}a - 6\sqrt{3} )^2$

Step-by-step explanation:

$3a^2 = (\sqrt{3} a)^2\\108 = 9 \times 4 \times 3= 3^2 \times 2^2 \times 3 = (3\times2 \sqrt{3} )^2 = (6\sqrt{3})^2$

$so, a = \sqrt{3} a \ , \ b = 6\sqrt{3} \\\\(a - b)^2 = a^2 -2ab + b^2\\\\-36a = -2ab\\\\-36a = -2 \times \sqrt{3} a \times 6\sqrt{3}$

Therefore ,

$3a^2 - 36a + 108 = (\sqrt{3}a )^2 - 2(\sqrt{3}a \times 6\sqrt{3} ) + (6\sqrt{3} )^2 = (\sqrt{3}a - 6\sqrt{3} )^2$

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3 years ago

Which logarithmic equation is equivalent to 3^2 = 9?

noname [10]

Answer: $log_39=2$ is the logarithmic equation which is equivalent to $3^2=9$ .

Step-by-step explanation:

According to the laws of logarithms

$log_b\ x=n$ ,where b=base ,n,x all are positive

It can be written in exponential form such as

$x=b^n$

Now in the given question x=9 ,b=3 and n=2 such that it will equals to

$log_39=2$

Hence the logarithmic equation for $3^2=9$ is $log_39=2$ .

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3 years ago

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