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2 years ago

What is 2x+4x7x-19x+7y+9x

Mathematics

2 answers:

lutik1710 [3]2 years ago

8 0

Answer:

if you simplify it is =4x^8−8x+7y

if i can get brainliest that would be great

Combine Like Terms:

=2x+4x^8+−19x+7y+9x

=(4x^8)+(2x+−19x+9x)+(7y)

=4x^8+−8x+7y

s2008m [1.1K]2 years ago

6 0

Answer: do the math, 39x

Step-by-step explanation:2+4=6 times 7=42-19=23+7=30+9=39x

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Minchanka [31]

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3 years ago

Through (2,2) slope 3/2

Mrac [35]

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2 years ago

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Sveta_85 [38]

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2 years ago

Fine the equation, in standard form, of the line passing through the points (3,-4) and (5,1)

Talja [164]

The point-slope form:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (3, -4) and (5, 1). Substitute:

$m=\dfrac{1-(-4)}{5-3}=\dfrac{5}{2}\\\\y-(-4)=\dfrac{5}{2}(x-3)$

The standard form: $Ax+By=C$

$y+4=\dfrac{5}{2}(x-3)$ multiply both sides by 2

$2y+8=5(x+3)$ use distributive property

$2y+8=5x+15$ subtract 2y from both sides

$8=5x-2y+15$ subtract 15 from both sides

$-7=5x-2y$

<h3>Answer: 5x - 2y = -7</h3>

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3 years ago

The distance from the ground of a person riding on a Ferris wheel can be modeled by the equation d equals 20 times the sine of t

kodGreya [7K]

We have the function d, representing the distance from the ground of a person riding on a Ferris wheel:

$d(t)=20\sin (\frac{\pi}{30}t)+10$

If we consider the position of the person at t = 0, which is:

$d(0)=20\sin (\frac{\pi}{30}\cdot0)+10=20\cdot0+10=10$

This position, for t = 0, will be the same position as when the argument of the sine function is equal to 2π, which is equivalent to one cycle of the wheel. Then, we can find the value of t:

$\begin{gathered} \sin (\frac{\pi}{30}t)=\sin (2\pi) \\ \frac{\pi}{30}\cdot t=2\pi \\ t=2\pi\cdot\frac{30}{\pi} \\ t=60 \end{gathered}$

Then, the wheel will repeat its position after t = 60 seconds.

Answer: 60 seconds.

7 0

1 year ago