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Vikki [24]
3 years ago
7

Solve the equation: 25^2n+1=625

Mathematics
2 answers:
Ber [7]3 years ago
6 0

Answer:

The value of n is 1/2.

Step-by-step explanation:

{25}^{2n + 1}  = 625

log_{25}(625)  = 2n + 1

2 = 2n + 1

2n = 1

n =  \frac{1}{2}

alexira [117]3 years ago
4 0
<h3><u>Solution</u><u>:</u><u>-</u></h3>

\qquad\quad {:}\longmapsto\sf {25}^{2n+1}=625

\qquad\quad {:}\longmapsto\sf {25}^{2n+1}=25^2

\qquad\quad {:}\longmapsto\sf 2n+1=2

\qquad\quad {:}\longmapsto\sf 2n=2-1

\qquad\quad {:}\longmapsto\sf 2n=1

\qquad\quad {:}\longmapsto\sf n={\dfrac {1}{2}}

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Consider this algebraic expression:     –3x + x + 5 Use the algebra tiles to model the expression.
luda_lava [24]

For this case, we have the following expression:

-3x + x + 5

We simplify the expression:

If we add similar terms, taking into account that different signs are subtracted and the sign of the greater one is placed, we have that -3x + x = -2x

So, we have to:

-3x + x + 5 = -2x + 5

Answer:

-3x + x + 5 = -2x + 5

6 0
3 years ago
Read 2 more answers
What is the answer to |x-4|&lt;13
VARVARA [1.3K]

Answer:

<h2>The solution is -9 < x < 17.</h2>

Step-by-step explanation:

|x-4|<13.

The above equation means, whatever the actual value of x is, the value of (x - 4) must be greater than - 13 and less than 13.

Hence, -13 < x - 4 < 13 or, -9 < x < 17. The value of x will be in between -9 and 17. The value of x can not be -9 or 17.

7 0
3 years ago
Out of a sample 650 high school students, 321 take the bus to school every day. construct a 99% confidence interval for the popu
gtnhenbr [62]

A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)

We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday

A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.

The confidence interval of proportions is given by:

π ± z √(π (1-π) /n)

π is the sample proportion.

z is the critical value.

n is the sample size.

For 99% confidence interval the value of z is 2.58

π = 321/650

The confidence interval is given by

=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)

= (0.493846 ± 0.050594)

=(0.4434 , 0.5443)

=(44.34 % , 54.43 %)

Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)

<u>Learn more about confidence interval:</u>

brainly.com/question/28052710

# SPJ4

8 0
2 years ago
Please help ASAPPPPP
iren [92.7K]

Answer:The third box

Step-by-step explanation:

You dont have to write the steps

6 0
3 years ago
A bag contains 12 pennies, 9 nickels, 11 dimes and 3 quarters. A coin is selected at random from the bag. Find the probability.
steposvetlana [31]
Probablity=desiredoutcomes/totalpossibleoutcomes

see which ones fit
dimes and quarters are over 9 cents
there are 11+3 or 14 of them

total outcomes=12+9+11+3=35

probablity=14/35=2/5

probablity is 2/5
6 0
3 years ago
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