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tigry1 [53]
3 years ago
5

Simplify this expression.

Mathematics
2 answers:
sesenic [268]3 years ago
7 0

Answer:

C

Step-by-step explanation:

use distributive property and get 2x -8

do 2(10) and get 20

20 - 8

get 2x +12

frozen [14]3 years ago
6 0

Answer:

2x + 12

Step-by-step explanation:

2(10)+2(x+4)

distribute the 2

20 + 2x - 8

add/ subtract like terms

2x + 12

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The sum of 4 consecutive intergers is 50, what is the first interger in this relationship
Vesnalui [34]

Answer:

x = 11

Step-by-step explanation:

Consecutive means in a row

Let x be the first integer

x+1 is the second

x+2 is the third

x+3 is the 4th

The sum is 50

x+ x+1 + x+2 + x+3 = 50

Combine like terms

4x+6 = 50

Subtract 6 from each side

4x+6-6 = 50-6

4x = 44

Divide each side by 4

4x/4 = 44/4

x = 11

7 0
4 years ago
Which sequence below represents an exponential sequence? A) {2, 6, 10, 14, 18,...} B) {3, 5, 9, 16, 24,...} C) {4, 8, 24, 96,...
Flura [38]

Answer:d

Step-by-step explanation:

Clearly from observation option D is the exponential sequence

256,64,16,4 is decreasing exponential function

\Rightarrow \frac{256}{64}=\frac{4^4}{4^3}=4

\Rightarrow \frac{64}{16}=4

for other option they simply follow an AP

2,6,10,14,18

common difference d=4

7 0
4 years ago
Please help asap I need it please
Semenov [28]

Answer:

Exponential decay

Step-by-step explanation:

Because the values are exponentially decreasing.

7 0
3 years ago
A bag contains 5 red apples and 4 yellow apples. 4 apples are selected at random. Find the probability of selecting 2 red apples
Oksi-84 [34.3K]

Assuming that the apples are not tossed back into the bag after drawing them.

Total of 9 apples.

1st draw yell, 4/9

2nd draw yell, 3/8

3rd draw red, 5/7

4th draw red, 4/6

\frac{4}{9} *  \frac{3}{8} *  \frac{5}{7} *  \frac{4}{6} =  \frac{240}{3024}  \\  \\ = \frac{5}{63}


7 0
3 years ago
Is the number 6+1 rational or irrational?
Lilit [14]

Answer:

Rational

Step-by-step explanation:

An irrational number is any number that cannot be turned into a fraction. 7 can be turned into a fraction.

5 0
3 years ago
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