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Oliga [24]
3 years ago
14

Evaluate each expression.

Mathematics
2 answers:
Elan Coil [88]3 years ago
8 0

Answer:

-1

Step-by-step explanation:

-9-3 = -12

18-6 = 12

-12/12 = -1

nika2105 [10]3 years ago
5 0

Answer:

-1

Step-by-step explanation

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cestrela7 [59]

<em>Answer:</em>

<em>267.94(6) in³</em>

<em>Step-by-step explanation:</em>

<em />V=\frac{4}{3}\pi r^{3}=\frac{4}{3}*3.14*4^{3}=\frac{4*3.14*64}{3}=803.84:3= 267.94(6)~in^{3}<em />

6 0
3 years ago
What is the sum of 4n² + 2n+ 12
Alex

Answer:

hope this helps <33

Step-by-step explanation:

2(2n^2+n=6)

6 0
3 years ago
1/x^-2 x=7 yeet yeet
Yanka [14]

Answer:

49

Step-by-step explanation:

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8 0
3 years ago
A restaurant has a total of 30 tables which are of two
ki77a [65]

Answer:

Total number of tables of first type       = 23.

Total number of tables of second type = 7

Step-by-step explanation:

It is given that there are 30 tables in total and there are two types of tables.

Let's call the two seat tables, the first type as x and the second type as y.

∴                                             x + y = 30                        ......(1)

Also a total number of 81 people are seated. Therefore, 2x number of people would be seated on the the first type and 5y on the second type. Hence the equation becomes:

                                            2x + 5y = 81                        .....(2)

To solve (1) & (2) Multiply (1) by 2 and subtract, we get:

                                                      y = 7

Substituting y = 7 in (1), we get x = 23.

∴ The number of tables of first kind         = 23

  The number of tables of second kind   = 7

4 0
4 years ago
Need help with this one also
-Dominant- [34]

Answer:

D

Step-by-step explanation:

10/7 = 1.4285

9/y = 1.4285

Multiply both sides by y.

9 = 1.4285y

Divide both sides by y.

6.3 = y

6 0
3 years ago
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