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3 years ago

-x+4y when x=-4/5 and y=1/3

Mathematics

1 answer:

kobusy [5.1K]3 years ago

4 0

The answer is 2.1333 repeating

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Answer please answer it’s important

bagirrra123 [75]

Answer:

25 $\pi$

Step-by-step explanation:

10/2=5

Then, you use the formula for the area of the circle: $r^2\pi$

Plug in 5

$5^2\pi$

Simplify

25 $\pi$

7 0

4 years ago

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(3)2y+3×4 written as an expression of two factors

goldfiish [28.3K]

Answer:

6/12

Step-by-step explanation:

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4 years ago

What is the radius for a circle whose equation is x^2+y^2=64

xxTIMURxx [149]

Answer:

8 is the radius.

Step-by-step explanation:

The standard form of a circle is $(x-h)^2+(y-k)^2=r^2$ .

However, I like to call it center-radius form because it tells us the center and the radius.

The center is $(h,k)$ and the radius is $r$ .

So your equation is $(x-0)^2+(y-0)^2=8^2$ .

So the center for this circle is (0,0) and the radius is 8.

If it wasn't so obvious that $8^2$ is 64 then you could have entered $\sqrt{64}$ in your calculator to get 8.

4 0

3 years ago

Using division to find ratios that are equivalent to 40:28

GrogVix [38]

Answer: 10:7

Step-by-step explanation:

40:28=10*7

6 0

4 years ago

Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below. Step 1 7 positive tiles. Step 2 7 positive til

raketka [301]

Answer:

Step-by-step explanation:

Given the expression 7+(-2)

Let 7 be 7 positive tiles since it is a positive number

Let -2 be 2 negative tiles being a negative number

7+(-2) = 7 positive tiles <em>and</em> 2 negative tiles

note that + * - will give minus sigh (-), the expression will become:

7+(-2) = 7-2

7-2 = 5

Hence the expression gives 5 positive tiles not 2 positive tiles according to Jillian calculations in step 4.

Hence Jillian made an error in step 4

7 0

3 years ago

Read 2 more answers