3 years ago

HELP! Write an equation that represents the relationship between the two variables.

Mathematics

1 answer:

vova2212 [387]3 years ago

7 0

Answer:

x + 1, y + 1

Step-by-step explanation:

For every x there is a y

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What scale factor was applied to the first rectangle to get the resulting image?

Valentin [98]

Answer:

Divided by 5.

Step-by-step explanation:

It is five times smaller than the original picture.

3 0

3 years ago

Eliminate the parameter t. Then use the rectangular equation to sketch the plane curve represented by the given parametric equat

____ [38]

Answer:

$9x^2+4y^2=36$

Step-by-step explanation:

We are given that

$x=2cos t$

$y=3 sin t$

$0\leq t\leq 2\pi$

$cost=\frac{x}{2}$

$sint=\frac{y}{3}$

$sin^2 t+cos^2 t=(\frac{x}{2})^2+(\frac{y}{3})^2$

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By using the formula

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$9x^2+4y^2=36$

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3 years ago

Eight two-person teams are participating in a three-legged race. Find the number of orders in which all 8 teams can finish the r

Wewaii [24]

Each team needs two people for a 3-legged race.
Therefore, the number of orders (combinations) of 2 people at a time from 8 is
₈C₂ = 8!/(2!6!)
= (8*7*6!)/(2*6!)
= (8*7)/2
= 56/2
= 28

Answer: 28

8 0

3 years ago

Solve for x: 2x^2+4x-16+=0

ella [17]

$2x^2+4x-16=0|:2\\
x^2+2x-8=0\\
\Delta=36\Rightarrow\sqrt{\Delta}=6\\
x_1=\frac{-b+\sqrt{\Delta}}{2a}\ \vee\ x_=\frac{-b-\sqrt{\Delta}}{2a}\\
x_1=2\ \vee\ x_2=-4$