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Georgia [21]
3 years ago
7

Solve the equation x2 18x + 21 = -3x to the nearest tenth.

Mathematics
1 answer:
Bumek [7]3 years ago
7 0

Answer:

1x=-29

2x=-1

Step-by-step explanation:

i hope its useful.

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(PICTURE ATTACHED) please help
yaroslaw [1]

Answer:

A

Step-by-step explanation:

9,460,528,400,000,000 can be rounded off to

9,000,000,000,000,000.

A trick you can use for these questions is count the number of zeroes at the end.

There are 15 zeroes, hence the answer is

9 \times 1 {0}^{15}

Proof:

1 {0}^{2}  = 100

1 {0}^{3}  = 1000

Hence, the number of zeroes is equal to the exponent.

6 0
3 years ago
What is the missing term?
spayn [35]
The answer is 2x^2 to the question
6 0
3 years ago
Read 2 more answers
Elliot put 7 cups of tea into the pitcher shown. How many more cups of tea does he need to fill the pitcher?
sukhopar [10]

Answer: The Answer would be 9.

Step-by-step explanation:

Since there is only 7 and the empty space is 2 cups, The answer would be 9. 7 + 2 = 9.

8 0
3 years ago
Find the perimeter of the swimming pool
loris [4]
12+40+28+12= 92

40-12= 28

92+28= 120

28-12= 16

120+16= 136

P=136

5 0
4 years ago
3.6+7.2k <25.2 what the answer
ArbitrLikvidat [17]
Here are the steps to solving:
1) Write out problem      3.6+7.2k <25.2
2) Subtract 3.6                      7.2k <21.6
3) Divide by 7.2                          k <3

So k<3 would be your answer
8 0
3 years ago
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