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Gnom [1K]
3 years ago
8

Symbolic 2 what is the area of a cirle of radius r? use r for the radius and pi for π. for help on entering a symbolic answer cl

ick on the symbolic formatting help link below.
Mathematics
1 answer:
Verdich [7]3 years ago
3 0
The area (A) of a circle of radius r is given by
  A = pi×r²
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how much must you deposit in an account that pays 8% annual interest compounded monthly to have a balance of $1,000 after one ye
strojnjashka [21]

Answer:

\$923.36  

Step-by-step explanation:

we know that

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=1\ year\\ A=\$1,000\\ r=0.08\\n=12  

substitute in the formula above  and solve for P

\$1,000=P(1+\frac{0.08}{12})^{12*1}  

P=\$1,000/(1+\frac{0.08}{12})^{12*1}=\$923.36  

5 0
3 years ago
-5,-6,0,6 which pair of numbers has a sum of zero
ladessa [460]

Answer:

-6, 6

Step-by-step explanation:

I hope this helps :)

7 0
3 years ago
Which of the following decimals is equivalent to three and ten hundredths
Montano1993 [528]

Answer: 3.1 or 3.10

Step-by-step explanation:

3 and 10 hundredths = 3 + 10/100 = 3 + 0.10

3.10 / 3.1

6 0
2 years ago
What is the true solution In 20+In 5=2 In x?
S_A_V [24]

Answer:

x = 10

Step-by-step explanation:

Using the rules of logarithms

• log x + log y ⇔ log(xy)

• logx^{n} ⇔ n log x

• log x = log y ⇒ x = y

Given

ln20 + ln5 = 2 lnx , then

ln(20 × 5) = lnx^{2}

ln 100 = lnx^{2}, hence

x² = 100 ( take the square root of both sides )

x = 10

7 0
3 years ago
2. Order 3.3,3.19,3 1/5,3 1/3.
cricket20 [7]
2.
3\frac15=3.2\\ 3\frac13=3.33333...

3.19, \ \ \ 3\frac15, \ \ \ 3.3, \ \ \ 3\frac13

3.
20\%\cdot1500\$=0.2\cdot1500\$=300\$

4.
\frac{600g}{3kg}=\frac{600g}{3000g}=\frac{600g}{5\cdot600g}=\frac15
This fraction is \frac15

5. 
10^3+10^2+10+1=1000+100+10+1=1111

6. 6.7\cdot5\$=33.5\$

7. 
180-40\%\cdot180=180-0.4\cdot180=180-72=108

8.
9^2-4\cdot9=81-36=45

9.
from 8.45am to 12.45pm - 4 hours
\$15\cdot4=\$60
I earn \$60

10.
48 minutes = 1 hour - 12 min
21.15 - 1 hour = 20.15
20.15 + 12 min = 20.27

11. 
34.1^oC-27.6^oC=6.5^oC

12. 
8\frac14 \ h= 8h \ 15min
10.30pm+8h = 6.30am\\ 6.30am+15min  = \boxed{6.45am}
I get up at 6.45am

13.
12\cdot108=1296

14.
\overline{x}=\frac{8.2+9.4+3.5+2.9}4=\frac{24}4=6

15.
48\cdot26=1248 \ \ \ - \ \ \ total \ amount \ of \ lolipops \ in \ 48 \ bags\\ 1248\cdot20g=24960g = \boxed{24.96kg} \ \ \ - \ \ \  total \ weight \ of \ the \  48  \ bags\\

8 0
3 years ago
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