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Likurg_2 [28]
4 years ago
7

What is the value of R? 3r–8=7+8r

Mathematics
1 answer:
stellarik [79]4 years ago
6 0
The answer to r is going to be the lucky number 5
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4 0
3 years ago
Newton currently has an account balance of $6225.18. He opened the account 15 years ago with a deposit of $4543.11. If the inter
TiliK225 [7]
Formula of the daily compound interest:
A = P.e^(r.t), where P is the initial investment, r = interest rate, t = number of years e= 2.718 and  A = final amount

6,225.18= 4,543.11(e)^(r.15)

(e)^(r.15) = 6,225.18/4,543.11

(e)^(r.15) = 1.3702046

ln[(e)^(r.15)] = ln(1.3702046)

15.r = 0.314991

And r = 0.314491/15 = 0.020 OR  2%
4 0
4 years ago
Which of the following circles have their centers on the x-axis?
Salsk061 [2.6K]
I think this might be the Answer

6 0
3 years ago
Answers and work for answers please
larisa [96]

Answer:

1) 5 2) 6 3) 1.25 or -1.75

Step-by-step explanation:

1. x^2 - 25 = 0

x^2 - 25 = 0

First, add 25 to both sides!

x^2 = 25

Now square root both sides.

x = 5

2.  (x-2)^2 = 16

First, square root both sides.

(x-2) = 4

Add 2 on both sides.

(x) = 6

x = 6

3. Quadratic Formula = -b ± \sqrt{b^{2}-4ac } / 2a

Substitute in:

-6 ±\sqrt{7^{2} -4(2)(6)} / 2(2)

-6±\sqrt{49 - 48} / 4

Both forms:

-6 + \sqrt{1} / 4

5 / 4 = 1.25

Negative:

-6 - 1 / 4

-7 / 4 = -1.75

8 0
3 years ago
What is the sum of 3b(b-4) and 6(b-8)
lora16 [44]

Answer:

This equals 3b^2-6b-48

Step-by-step explanation:

5 0
3 years ago
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