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docker41 [41]
3 years ago
8

The expression 3(x-9) is equivalent to 3(x)+9. 3(x)+3(9). 3(x) – 9. 3(x) – 3(9).

Mathematics
2 answers:
sammy [17]3 years ago
3 0

Answer:

the answer is d

Step-by-step explanation:

3(x) - 3(9)

caus (+)× (-) = -

love history [14]3 years ago
3 0

Answer:

its d

Step-by-step explanation:

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a) Negative correlation

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b) Positive correlation

Positive correlation corresponds to points that move up as you go from left to right on the scatter plot.

c) No correlation

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4 0
3 years ago
Which one is it A B C D
vovangra [49]

Answer:B

Step-by-step explanation: Alternate exterior angles theorem

3 0
3 years ago
Each year for 4 years, a farmer increased the number of trees in a certain orchard by of the number of trees in the orchard the
Neko [114]

Answer:

The number of trees at the begging of the 4-year period was 2560.

Step-by-step explanation:

Let’s say that x is number of trees at the begging of the first year, we know that for four years the number of trees were incised by 1/4 of the number of trees of the preceding year, so at the end of the first year the number of trees wasx+\frac{1}{4} x=\frac{5}{4} x, and for the next three years we have that

                             Start                                          End

Second year     \frac{5}{4}x --------------   \frac{5}{4}x+\frac{1}{4}(\frac{5}{4}x) =\frac{5}{4}x+ \frac{5}{16}x=\frac{25}{16}x=(\frac{5}{4} )^{2}x

Third year    (\frac{5}{4} )^{2}x-------------(\frac{5}{4})^{2}x+\frac{1}{4}((\frac{5}{4})^{2}x) =(\frac{5}{4})^{2}x+\frac{5^{2} }{4^{3} } x=(\frac{5}{4})^{3}x

Fourth year (\frac{5}{4})^{3}x--------------(\frac{5}{4})^{3}x+\frac{1}{4}((\frac{5}{4})^{3}x) =(\frac{5}{4})^{3}x+\frac{5^{3} }{4^{4} } x=(\frac{5}{4})^{4}x.

So  the formula to calculate the number of trees in the fourth year  is  

(\frac{5}{4} )^{4} x, we know that all of the trees thrived and there were 6250 at the end of 4 year period, then  

6250=(\frac{5}{4} )^{4}x⇒x=\frac{6250*4^{4} }{5^{4} }= \frac{10*5^{4}*4^{4} }{5^{4} }=2560.

Therefore the number of trees at the begging of the 4-year period was 2560.  

7 0
3 years ago
In a sample of 5000 flips of a fair coin, tails will always come up 2500 times.
rodikova [14]

true or false? no question?

if so

Faults because 50% is based on each time you flip not the total amount

8 0
3 years ago
Can someone help me, please and thank you? I'll give BRAINLEST to the person who gets it right!!!
dmitriy555 [2]

Answer:

x = - 4

8 = 2x + 16

2x = - 8

x = - 4

5 0
3 years ago
Read 2 more answers
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