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RUDIKE [14]
3 years ago
11

What is the probability of rolling an even number or a perfect square using a 20-sided die?

Mathematics
1 answer:
Gemiola [76]3 years ago
8 0

Answer:

C) 12/20

Step-by-step explanation:

Between 1 and 20, 10 numbers are even, 4 numbers are perfect squares (1, 4, 9, and 16), and 2 numbers are both even and perfect squares (4 and 16).

So the probability is:

(10 + 4 − 2) / 20 = 12/20.

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True or false: one factor that affects the slope of the aggregate demand curve is the multiplier effect.
Alenkasestr [34]

One factor that affects the slope of the aggregate demand curve is the multiplier effect is a "true" statement.

<h3>What is aggregate demand curve?</h3>

Aggregate demand would be a macroeconomic term which refers to the total consumption of goods and services in a given period at any price level.

Some key features regarding the aggregate demand curve?

  • Since the two metrics are estimated in the same way, aggregate demand over time corresponds gross domestic product (GDP).
  • GDP is the total quantity of products and services created by an economy, whereas aggregate demand is indeed the desire or demand for those goods.
  • The aggregate demand as well as GDP rise or fall together as a result of using the same calculation methods.
  • All consumer goods, capital equipment (factories & equipment), export markets, imports, & government spending programs are included in aggregate demand.
  • As long as the variables trade for the same market value, they are all considered equal.

To know more about the aggregate demand curve, here

brainly.com/question/28056154

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7 0
2 years ago
If you know anything about combining equations, specifically subtracting, can you please help me :)
Rufina [12.5K]

Answer:

5x - 2y = -2

Step-by-step explanation:

When subtracting one equation from the other, we are essentially just subtracting the left side of the second equation from the left side of the first equation and doing the same thing with the two right sides.

Here, we are subtracting (-7x + 3y) from (-2x + y):

(-2x + y) - (-7x + 3y)

Let's get rid of these parentheses. Remember that when we have a subtraction sign before a parentheses, we need to distribute a -1 to each term within those parentheses:

(-2x + y) - (-7x + 3y) = -2x + y + 7x - 3y = -2x + 7x + y - 3y = 5x - 2y

Now on the right side, we're subtracting 2 from 0:

0 - 2 = -2

Put it all together:

5x - 2y = -2

Hope this helps!

7 0
3 years ago
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The expression 3[x-9) is equivalent to<br> 03(x)+9.<br> 03(x)+3(9)<br> O 3(%) - 9.<br> 03(x) – 3(9)
Vera_Pavlovna [14]

Answer:

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Step-by-step explanation:

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3 years ago
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Find the sum and express it in the simplest form (-2y-4x+7)+(-4y+x-1)
Marina86 [1]

Y=7+2x......(1)

put this value in 4y+x=1

4(7+2x)+x=1

28+14x+x=1

15x=-27

x=-27/15.....(2)

put this value in eqn (1)

y=7+2(-27/5)

y=7-54/5

y=-3.8

I really hope this helps :D:D:D!!!!

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arsen [322]

Answer:

E

Step-by-step explanation:

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