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3 years ago

I'm lookin how to Simplify 9x-(2x+8)

Mathematics

2 answers:

hram777 [196]3 years ago

7 0

9x-(2x+8)
Distribute the - to both 2x and 8
9x-2x-8
simplify
7x-8

klemol [59]3 years ago

7 0

$9x-(2x+8)$

$9x-2x-8
$

$(9x-2x)-8
$

$7x-8
$

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A deck of cards contains 6 black cards and 6 red cards. The first card drawn is not replaced before drawing the second card.

exis [7]

Answer : 5/22

A deck of cards contains 6 black cards and 6 red cards. The first card drawn is not replaced before drawing the second card.

Total number of outcome of cards = 12

Probability( any event)= favorable outcomes divide by total number of outcomes

Probability of selecting black card = $\frac{6}{12} =\frac{1}{2}$

The drawn card is not replaced . so 11 cards left . In that 11 cards, 5 black cards because one black card is already chosen

Probability of selecting another black card = $\frac{5}{11}$

Probability of selecting a black card followed by another black card =

= $\frac{1}{2}*\frac{5}{11}$

= $\frac{5}{22}$

4 0

3 years ago

Match each expression it to an equivalent expression

kykrilka [37]

Hi there!

»»————-　★　————-««

I believe your answer is:

$\frac{4^2}{2^2} = 4\\\\(8-4)*4=4^2\\\\2^2 + 2^2 = 8$

»»————-　★　————-««

Here’s why:

$\boxed{\text{Simplifying each expression:}}\\\\\frac{4^2}{2^2}\\---------\\\\\\rightarrow \frac{16}{4}\\\\\rightarrow \boxed{4}\\\\ \boxed{\frac{4^2}{2^2}=4}$

⸻⸻⸻⸻

$(8-4) * 4\\-----------\\\rightarrow (4)*4\\\\\rightarrow \boxed{16}\\\\\text{We can also tell...}\\\\4^2 = 4 * 4 = \boxed{16}\\\\\text{So...}\\\\\boxed{(8-4)*4 = 4^2}$

⸻⸻⸻⸻

$2^2 + 2^2\\--------------\\\rightarrow 4 + 2^2\\\\\rightarrow 4 + 4\\\\\rightarrow \boxed{8}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

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3 years ago

One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant rate from 8 p.m. to midnight. At mi

Elena L [17]

-16.8 = m(4)

-16.8 / 4 = -4.2

So the constant rate is -4.2.

Hope this Helps!!

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3 years ago

Which value of k makes 3- 3k -12 > 9 true ?

Nadya [2.5K]

Answer:

Step-by-step explanation

k can be 11. If u plug 11: 3-21-12 is bigger than 9

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3 years ago

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Eva8 [605]

Let B be the event that Andrea passes her test, and let A be the event
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