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Vinil7 [7]
3 years ago
15

9x^2 - 4y - a evaluate the expression given x = -2, y = 3, a = -4

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer:

-44

Step-by-step explanation:

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A standard deck of 52 cards contains 4 aces. What is the probability of randomly drawing a card that is not an ace?
Stells [14]

I There would be 52-4 = 48 cards that are not aces.

The probability of picking a non ace card would be 48 out of 52, which is written as 48/52, which reduces to 12/13

8 0
3 years ago
What is -7 = x/2 + 1
marusya05 [52]

-7 = x/2 + 1

Subtract one from both sides

-8 = x/2

Multiply two on both sides

-16 = x

Answer, x = -16

Checking,

-7 = (-16/2) + 1

-7 = -8 + 1

-7 = -7

7 0
3 years ago
If the scale factor for the dilation shown is 3, which is the length of B'C'?
Arturiano [62]

Answer:

15

Step-by-step explanation:

Scale Factor = 3

Using Formula:

Scale Factor = LengthOfDilatedTraingle/LengthOfActualTriangle

Scale Factor =  B'C'/B'C'

B'C' = 3 * 5

B'C' = 15

5 0
2 years ago
A company makes steel rods shaped like cylinders. Each rod has a radius of 4 centimeters and a height of 20 centimeters. If the
Tamiku [17]
(One steel rod’s volume) = 3.14 x 4^2 x 20

= 1004.8cm^3

(Used steel) / (One steel rod’s volume) =

(Made steel rod’s number)

The answer is 28
5 0
2 years ago
I need step by step solution.
iren2701 [21]

Answer: it is an exponential decay function

Step-by-step explanation:

Since 0.3 is less than 1 then increasing the value of the x will lead to the decrease of the value function y

4 0
3 years ago
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