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iogann1982 [59]
1 year ago
15

If 10^2y = 25, then 10^-y equals:(a) -1/5(b) 1/625(c) 1/50(d) 1/25(e) 1/5​

Mathematics
2 answers:
Gemiola [76]1 year ago
8 0
<h3><u>given</u><u>:</u></h3>

<u>10 ^{2y}  = 25</u>

<h3><u>to</u><u> </u><u>find</u><u>:</u></h3>

<u>{10}^{y}  = .......</u>

<h3><u>solution</u><u>:</u></h3>

<u>10 ^{2y}  = 25</u>

<u>(10y {)}^{2}  =  {5}^{2}</u>

<u>10y = 5</u>

<u>\frac{1}{ {10}^{y} }  =  \frac{1}{5}</u>

<u>{10}^{ - y}  =  \frac{1}{5}</u>

<u>therefore</u><u>,</u><u> </u><u>the</u><u> </u><u>correct</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>option</u><u> </u><u>E</u><u>.</u>

Eddi Din [679]1 year ago
8 0

the correct option is <u>option e</u>.

hope this helps you

have a great day

please give me brainliest.

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247/612 bpm

Step-by-step explanation:

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5 0
2 years ago
X= -1/5; f(x) = (25/2)x + (-91/2) =
Diano4ka-milaya [45]

Answer:

Write the problem as a mathematical expression.

X=−1/5; f(x)=(25/2)x+(−91/2)

Replace the variable x with x=−1/5 in the expression.

f(−1/5)=(25/2)(−1/5)−91/2

Simplify the result.

−48

Step-by-step explanation:

4 0
2 years ago
Find the amount and present value of 10 quarterly payments of $ 1500, if the interest rate is 25% compounded each month.
BlackZzzverrR [31]

Given Information:

Monthly payment = MP = $1500/4 = $375

Monthly interest rate = r = 25/12 = 2.083%

Required Information:

Present Value = ?

Answer:

PV = \$10,110

Explanation:

n = 10*4

n = 40 monthly payments

The present value is found by

$ PV = MP \times  \frac{ (1 - \frac{1}{(1+r)^n} )}{r}  $

Where r is monthly interest rate.

MP is the monthly payment.

$ PV = 375 \times  \frac{ (1 - \frac{1}{(1+0.02083)^{40}} )}{0.02083}  $

PV = 375 \times (26.96)

PV = \$10,110

Therefore, $10,110 is the present value of 10 quarterly payments of $1500 each at 25% interest rate compounded each month.

7 0
3 years ago
I need estimate then record the product
creativ13 [48]
Round and then see what the number you have too add, subtract , multiply, and divide and then you would find the answer
8 0
3 years ago
PLEASE HELP!! I only have 5 mins
butalik [34]
I think the answer is K
3 0
3 years ago
Read 2 more answers
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