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e-lub [12.9K]
3 years ago
15

Which of the following are identities?

Mathematics
2 answers:
777dan777 [17]3 years ago
4 0

Answer:

all of them

Step-by-step explanation:

work out + simplify the left side and you will get the same as the right side

Nuetrik [128]3 years ago
4 0

Answer:

The answer is 2 because they are similar it is just that the one at the side is factorised

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9 pencils cost $7.74.Which equation would help determine the cost of 6 pencils?
Dima020 [189]

Answer:

The equation is x= (7.74 /9) 6  

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

If 9 pencils cost $7.74, we have to divide the total cost ($7.74) by the number of pencils (9) to obtain the price of 1 pencil.

Now that we have the price of 1 pencil, to obtain the cost of 6 of them we simply multiply the result by six.

Mathematically speaking:

x= (7.74 /9) 6  

Where:

x = Cost of 6 pencils in $

Solving:

x = 0.86 x 6 = $5.16

8 0
2 years ago
Read 2 more answers
Which of the following are one-dimension and have infinite length
noname [10]

Answer:

Lines

Step-by-step explanation:

Lines are one dimensional and continue to infinity in both directions.

7 0
3 years ago
(Picture) INFINITE SEQUENCES AND SERIES PLEASE HELP!!
mojhsa [17]

Answer:

C) x=\frac{17}{33}

Step-by-step explanation:

0.51 repeating decimal

x= 0.51515151

multiply by 100 on both sides

100x = 51.515151.........

     x=    0.515151...............

--------------------------------------------(subtract)

   99x = 51

divide by 99 on both sides

x=\frac{51}{99}

divide both sides by 3

x=\frac{17}{33}


5 0
2 years ago
Find the size of each of 66 payments made at the end of each year into a 88​% rate sinking fund which produces ​$36000 at the en
Assoli18 [71]

Answer: $7787.99

Step-by-step explanation:

We know that the formula to find the periodic payment on an annuity is given by :-

P=\dfrac{r(PV)}{1-(1+r)^{-n}}, where PV is the present value , r is the rate of interest ( in decimal ) and n is the number of payments.

Given : Present value : $36000

Rate of interest = 8%=0.08

Time period = 6 years

Then , the periodic payment will be :-

P=\dfrac{(0.08)(36000)}{1-(1+0.08)^{-6}}\\\\\Rightarrow\ P=\dfrac{2880}{0.3698}\\\\\Rightarrow\ P=\$7787.99

Hence, the payment size is $7787.99.

8 0
3 years ago
190/85 * 42<br><br> Please help?
Rus_ich [418]
The answer to this question:

1596/17 or 93.88 or 93 15/17
4 0
3 years ago
Read 2 more answers
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