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madam [21]
2 years ago
12

What is 9/25 as a percentage

Mathematics
1 answer:
jeka942 years ago
6 0

9/25 as a percentage is 36%

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Round 590,340 to the nearest hubdred thousand
Leviafan [203]

Answer:

600,000

Step-by-step explanation:

4 0
3 years ago
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Show work please and correct
77julia77 [94]

Answer:

-  \frac{1}{2}

its down 1 over 2 each time

7 0
3 years ago
HELP PLZ
enot [183]

(f.g)(x) = f (g(x))= f ( x^4+3)

= (x^4+3)^2 + 2 ( x^4+3) - 6

= x^8 + 9 + 6x^4 + 2x^4 + 6-6

= x^8 + 8x^4+9

7 0
3 years ago
What is the equation to a graph with the vertex -1,3 and zeros -4 and -2
Mashutka [201]

Answer:

f(x)=x^2+6x+8

Step-by-step explanation:

We are given zeros as x=-4, x=-2

so, we can set up function as

f(x)=a(x+4)(x+2)

Vertex is at (-1,3)

It means that graph passes through point (-1,3)

so, we can plug x=-1 and f(x)=3

and then we can solve for 'a'

3=a(-1+4)(-1+2)

we get

a=1

now, we can plug it back

and we get

f(x)=1(x+4)(x+2)

now, we can simplify it

f(x)=x^2+6x+8

5 0
3 years ago
Barbara made a bad investment. Rather than earning interest, her money is decreasing in value by 11% each week! After just one w
pochemuha

Answer: She started with $160.

It will take 6 weeks before she has less than half of what she originally invested.

Step-by-step explanation:

If her money is decreasing in value by 11% each week, it means that the rate at which it is decreasing is exponential.

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the investment after t weeks.

t represents the number of weeks.

P represents the initial value of the investment.

r represents rate of depreciation.

From the information given,

A = $142.40

r = 11% = 11/100 = 0.11

t = 1

Therefore

142.40 = P(1 - 0.11)^1

142.40 = P(0.89)

P = 142.4/0.89

P = 160

For her to have half of what she invested originally, then

80 = 160(0.89)^t

80/160 = (0.89)^t

0.5 = (0.89)^t

Taking log of both sides to base 10

Log 0.5 = log0.89^t = tlog0.89

- 0.3010 = - 0.051t

t = - 0.3010/- 0.051

t = 5.9

Approximately 6 weeks

5 0
3 years ago
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