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dalvyx [7]
3 years ago
8

Find an expression which represents the sum of (8x - 7) and (10x + 3) in simplest terms.

Mathematics
1 answer:
Zigmanuir [339]3 years ago
8 0

80x + 24x × 70x + 21 = 3.4 when approximated

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Round these numbers to the nearest (I) 10 (ii) 100 (iii) 1000 (a) 948 (b) 1855 (c) 199 (d) 645 (e) 19897
makkiz [27]
A) 950, 900, 1000
b) 1860, 1900, 2000
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3 years ago
The best method for obtaining a representative sample is to choose a _____ from the population of interest.
Ilya [14]

Answer:

Random sample

Step-by-step explanation:

In statistics, a sample randomly taken from an investigated population, usually known as a random sample. To avoid having bais from our response and for it to have the best chance of it being indicative of the entire population, our sample must be random. This random sample chosen must contain subjects related to the data in the population we what to obtain a result from.

3 0
3 years ago
Emma has addressed seven invitations to her
Firlakuza [10]

Answer:

12

Step-by-step explanation:

This can be solved by working backwards.

7 is one more than half the number of invitations.

Subtract 1.  6 is half the number of invitations.

Double.

12 is the full number of invitations.

Algebra (if you must!):

x = number of invitations

x/2 + 1 = 7

Subtract 1.

x/2 = 6

Multiply by 2.

x = 12

8 0
2 years ago
Read 2 more answers
The length of the
Trava [24]
I would estimate around 6 because say it was 6.5 and 3 then it would around the square root of like 31 and that is rounding down a lot so we would bump it up to somewhenre around 35 so the side would be around 5.8-6
4 0
3 years ago
What is the area of the polygon shown
kvv77 [185]

Answer:

16 square units

Step-by-step explanation:

(bxh)÷2

4×8=32

32÷2=16

5 0
3 years ago
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