3 years ago

Suppose that the functions r and s are defined for all real numbers x as follows. HELP PLEASE

Mathematics

1 answer:

Bas_tet [7]3 years ago

3 0

Answer:

-x-3, 7x-3, -15

Step-by-step explanation:

For first 2 just add/subtract their equations. For the last one (r.s)(-1) is the same as r(s(-1)) so s(-1)=4(-1)=-4 and r(-4)=3(-4)-3=-12-3=-15

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A 50 meter path surrounds a rectangular garden . The width of the garden is two-thirds its length. find its area.

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3 years ago

Find any 3 (x,y) pairs that are solutions for the equation 2x-5y=10 . Show your work

Alla [95]

Answer:

(0,-2), (5,0) and (10,2).

Step-by-step explanation:

Given equation is $2x-5y=10$ .

Now we need to find 3 pairs of solutions in (x,y) form for the given equation.

As $2x-5y=10$ is a linear equation so we are free to pick any number for x like x=0, 5, 10

Plug x=0 into $2x-5y=10$ , we get:

$2(0)-5y=10$

$0-5y=10$

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$y=\frac{10}{-5}$

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Hence first solution is (0,-2)

We can repeat same process with x=5 and 10 to get the other solutions.

Hence final answer is (0,-2), (5,0) and (10,2).

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4 years ago

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Yuliya22 [10]

Answer:

$\frac{x + 7}{5}$

Step-by-step explanation:

let take the number as X

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3 years ago

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Find the area of a trapezium is 4cm 4cm, 7cm

dolphi86 [110]

Step-by-step explanation:

1/2×(4+7)×4

1/2×11×4

11×2

22cm2

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3 years ago