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julia-pushkina [17]
3 years ago
8

Fator by grouping ab+2a+5b+10

Mathematics
1 answer:
Alenkasestr [34]3 years ago
3 0
Ab + 2a + 5b + 10

= a(b + 2) + 5(b + 2)

= (b + 2) (a + 5)
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What is the probability that jenny rolls a double 1​
FrozenT [24]

Answer:

1/36

Step-by-step explanation:

Assuming that there are 2 dice

There are 36 possible outcomes ( 6*6)

There is only one way to get 2 ones

P ( 1,1) =  positive outcomes / total

          =1/36

5 0
3 years ago
4+6d&lt;52<br> How do u do this
muminat

Answer:

<em>d</em> < 8

Step-by-step explanation: Obviously, you need to find out what D is. First you  do the opposite of positive 4 to make it 0. You have to subtract 4, so you therefore subtract 4 from 52 as well, which is 48. Now you find out what 48/6 is to get the value of <em>d </em>which is < (less than) 8. Any <em>d </em>value less than 8 will give us a valid answer, however any <em>d </em>value more than 8 will give you an invalid answer.

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3 years ago
By airplane, the distance from Richmond to Roanoke is 146 miles and it's 82 miles
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3 0
3 years ago
20 - 3(3x - 4) <br> Solve the equation
Pavlova-9 [17]

Answer:

32 - 9 x (don't know what you want simplify or solve for x) x = 32/9

Step-by-step explanation:

Simplify the following:

20 - 3 (3 x - 4)

-3 (3 x - 4) = 12 - 9 x:

12 - 9 x + 20

Grouping like terms, -9 x + 12 + 20 = (20 + 12) - 9 x:

(20 + 12) - 9 x

20 + 12 = 32:

Answer: 32 - 9 x

_________________________________

Solve for x:

20 - 3 (3 x - 4) = 0

-3 (3 x - 4) = 12 - 9 x:

12 - 9 x + 20 = 0

Grouping like terms, -9 x + 12 + 20 = (20 + 12) - 9 x:

(20 + 12) - 9 x = 0

20 + 12 = 32:

32 - 9 x = 0

Subtract 32 from both sides:

(32 - 32) - 9 x = -32

32 - 32 = 0:

-9 x = -32

Divide both sides of -9 x = -32 by -9:

(-9 x)/(-9) = (-32)/(-9)

(-9)/(-9) = 1:

x = (-32)/(-9)

Multiply numerator and denominator of (-32)/(-9) by -1:

Answer: x = 32/9

3 0
4 years ago
In a group of​ bird-watchers, 4 out of every 5 people have seen a bald eagle. What percent of the​ bird-watchers have not seen a
Andreas93 [3]

Answer:

20%

Step-by-step explanation:

4/5=.80

1-.80=.20

.20=20%

4 0
3 years ago
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