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3 years ago

The higher interest rate of a cash advance on a credit card with an existing balance can be eliminated by paying the

Mathematics

2 answers:

vova2212 [387]3 years ago

8 0

Answer:

False

Step-by-step explanation:

EDGE 2021

Alex787 [66]3 years ago

6 0

B

Thank you hope this helps

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Gabriel deposits $2,500 into each of two savings accounts.

charle [14.2K]

Answer:

$5,612.16

Step-by-step explanation:

Part 1) Account I earns 4% annual simple interest.

we know that

The simple interest formula is equal to

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

substitute in the formula above

Part 2) Account II earns 4% interest compounded annually.

we know that

The compound interest formula is equal to

A=P(1+rt)

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=3 years

p=$2,500

r=4%=4/100=0.04

substitute in the formula above

A=2,500(1+0.04 * 3)

A=2,500 (1.12)

A=$2,800

Part 3) What is the sum of the balances of Account I and Account II at the end of 3 years?

Sum the two final investment

$2,800 + $2,812.16 = $5.612.16

8 0

4 years ago

If a and b are real numbers and a < b, is the statement a + c > b + c true? Why or why not?

Lina20 [59]

I think it is false because b is bigger than a

6 0

4 years ago

What does 2x-3y=7 equal

Serggg [28]

I suppose your answer could be x=5 and y=1....

3 0

3 years ago

Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One hundred randomly selected women

zmey [24]

Answer: No, the data provided is not sufficient evidence to conclude that the mean height of women in the city differs from the national mean.

Step-by-step explanation:

Since we have given that

$H_0:\mu =62.7\\\\H_a:\mu \neq 62.7$

Mean height = 61.5 inches

Standard deviation = 4.4 inches

n = 100

So, test statistic value would be

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{61.5-62.7}{\dfrac{4.4}{\sqrt{100}}}\\\\z=\dfrac{-1.2}{0.44}\\\\z=-2.727$

At 10% level of significance, in two tail test ,

z = 1.28

Since 1.28 > -2.727

So, we will accept the null hypothesis.

Hence, No, the data provided is not sufficient evidence to conclude that the mean height of women in the city differs from the national mean.

7 0

4 years ago

a vertical pedestal stands on the ground and is surmounted by a vertical flag staff of height 5 m.At a point on the ground the a

Scilla [17]

Answer:

2.5 ft

Step-by-step explanation:

The figure for the given scenario is shown below.

There are two right angled triangles, ΔACD and ΔBCD

The height of flag staff is represented by segment AB, BC is the height of pedestal stand , D is a point on the ground that makes angles 30° and 60° with the bottom and top of staff at B and A respectively.

AB = 5 ft. Let the height of pedestal stand be $x$ ft and the distance of point D from the bottom of stand be $y$ ft as shown in the figure.

Now, from ΔACD,

$tan(60)=\frac{AC}{CD}\\ \sqrt{3}=\frac{5+x}{y}\\ \sqrt{3}y=5+x$

From ΔBCD,

$tan(30)=\frac{BC}{CD}\\\frac{1}{\sqrt{3}}=\frac{x}{y}\\y=\sqrt{3}x$

Plug in the value of $y$ in the first equation and solve for $x$ .

$\sqrt{3}y=5+x\\\sqrt{3}(\sqrt{3}x)=5+x\\3x=5+x\\2x=5\\x=\frac{5}{2}=2.5 \textrm{ ft}$ .

Therefore, the height of the pedestal stand is 2.5 ft.

7 0

3 years ago