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3 years ago

How often should you study

Mathematics

1 answer:

GalinKa [24]3 years ago

5 0

I study like 2-3 hours every day, and 3 hours playing xbox lol. But yeah, what are you currently studying?

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Which statements are true the ordered pair (1, 2) and the system of equations?

galina1969 [7]

Answer:

when (1.2) is substituted into the second equation the equation is true

Step-by-step explanation:

further you substitute x and the then solve

4 0

3 years ago

Two similar triangles are shown

slavikrds [6]

Answer: D

Step-by-step explanation:

Because they are similar all u have to do is add the sides

7 0

3 years ago

Read 2 more answers

3^x= 3*2^x solve this equation

kompoz [17]

In the equation

$3^x = 3\cdot 2^x$

divide both sides by $2^x$ to get

$\dfrac{3^x}{2^x} = 3 \cdot \dfrac{2^x}{2^x} \\\\ \implies \left(\dfrac32\right)^x = 3$

Take the base-3/2 logarithm of both sides:

$\log_{3/2}\left(\dfrac32\right)^x = \log_{3/2}(3) \\\\ \implies x \log_{3/2}\left(\dfrac 32\right) = \log_{3/2}(3) \\\\ \implies \boxed{x = \log_{3/2}(3)}$

Alternatively, you can divide both sides by $3^x$ :

$\dfrac{3^x}{3^x} = \dfrac{3\cdot 2^x}{3^x} \\\\ \implies 1 = 3 \cdot\left(\dfrac23\right)^x \\\\ \implies \left(\dfrac23\right)^x = \dfrac13$

Then take the base-2/3 logarith of both sides to get

$\log_{2/3}\left(2/3\right)^x = \log_{2/3}\left(\dfrac13\right) \\\\ \implies x \log_{2/3}\left(\dfrac23\right) = \log_{2/3}\left(\dfrac13\right) \\\\ \implies x = \log_{2/3}\left(\dfrac13\right) \\\\ \implies x = \log_{2/3}\left(3^{-1}\right) \\\\ \implies \boxed{x = -\log_{2/3}(3)}$

(Both answers are equivalent)

8 0

3 years ago

Let f(x) = 2x^2 +3x-4 find f(3h)

azamat

substitute x = 3h into f(x)

f(3h) = 2(3h)² + 3(3h) - 4 = (2 × 9h²) + 9h - 4 = 18h² + 9h - 4

4 0

3 years ago

Read 2 more answers

Find the total amount paid on a loan when the monthly payment is $189 and the loan is paid off in 48 months. Use the formula A =

podryga [215]

9514 1404 393

Answer:

$9072

Step-by-step explanation:

Put the given numbers in the given formula and do the arithmetic.

A = MN . . . . . . M = payment = $189. N = number of payments = 48.

A = $189 × 48 = $9072

The total amount paid is $9072.

8 0

3 years ago