3 years ago

Please help if you can

Mathematics

1 answer:

arsen [322]3 years ago

5 0

Alright what is VAT?

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Evaluate 3x for x = -2, x = 1, and x = 3.

jok3333 [9.3K]

Answer:

A) 1/9, 3, 27

Step-by-step explanation:

i think you mean 3^x (and not 3x).

because otherwise none of the answer options withdraw makes any sense.

3^-2 = 1/(3²) = 1/9

3¹ = 3

3³ = 27

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2 years ago

How many solutions does the system have? \begin{cases} 5y =15x-40 \\\\ y = 3x-8 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 5y=15x−40 y=3x−8 C

Ksenya-84 [330]

Answer:

Step-by-step explanation:

Converting the lines into the from $ax+by+c=0$

$5y=15x-40\\\Rightarrow 15x-5y-40=0$

$y=3x-8\\\Rightarrow 3x-y-8=0$

$\dfrac{a_1}{a_2}=\dfrac{15}{3}=5$

$\dfrac{b_1}{b_2}=\dfrac{-5}{-1}=5$

$\dfrac{c_1}{c_2}=\dfrac{-40}{-8}=5$

So, $\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}$ .

Hence, these lines have infinitely many solutions.

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3 years ago

What is the sum of the measures of the interior angles of a 14-gon?

tensa zangetsu [6.8K]

The answer would be 154.3

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3 years ago

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Quadrilateral ABCD has opposite sides that are parallel and side AB congruent to side DC. What classification can be given to AB

fomenos

One pair of opposite sides both parallel and congruent implies a parallelogram.

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3 years ago

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-4v = -9v + 10 V=<br> Help

Aleksandr-060686 [28]

Answer:

v=2

Step-by-step explanation:

5v=10

v=2

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4 years ago