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3 years ago

How do I do this? I’m so confused

Mathematics

1 answer:

Shtirlitz [24]3 years ago

5 0

I say left because you have a straight line, i goes through 0,0 and every time it goes over 1 and up by 3.

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Debra plans to invest $2,250 for 10 years. She can invest in a savings account that pays 4% simple intrest or a savings account

Diano4ka-milaya [45]

Answer:

$\$180.55$

Step-by-step explanation:

step 1

Simple interest

we know that

The simple 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

t is Number of Time Periods

in this problem we have

$t=10\ years\\ P=\$2,250\\r=4\%=4/100=0.04$

substitute in the formula above

$A=2,250(1+0.04*10)$

$A=2,250(1.4)$

$A=\$3,150$

step 2

Interest compounded annually

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

$t=10\ years\\ P=\$2,250\\r=4\%=4/100=0.04\\n=1$

substitute in the formula above

$A=2,250(1+\frac{0.04}{1})^{1*10}$

$A=2,250(1.04)^{10}$

$A=\$3,330.55$

step 3

Find the differences between the two final amounts

$A=\$3,330.55-\$3,150=\$180.55$

5 0

3 years ago

What is the solution of the system of equations? {7/2x−1/2y=9/23x−y=5 Enter your answer in the boxes. ( _ , _ )

dimulka [17.4K]

Answer:

(1, -2)

Step-by-step explanation:

I hope that helps :/

5 0

3 years ago

Read 2 more answers

A rope is swinging In such a way that the length of the arc traced by a knot at its bottom end is

Sati [7]

Answer:

13.6 ft

Step-by-step explanation:

The geometric sequence of arc lengths can be described by ...

f(n) = a·b^n

We have (n, f(n)) = (3, 20) and (7, 12). Using these values, we can find the common ratio (b):

20 = a·b^3

12 = a·b^7

Then ...

12/20 = (a·b^7)/(a·b^3) = b^4 = 3/5

We want the 6th term, which we can get from the 7th term by multiplying by b^-1.

b^(-1) = (b^4)^(-1/4) = (3/5)^(-1/4) = √(√(5/3)) ≈ 1.13622

Then the 6th swing had an arc length of ...

f(6) = f(7)·b^-1

f(6) = (12 ft)(1.13622) ≈ 13.63 ft ≈ 13.6 ft

3 0

2 years ago

Find the value of x. Round your answer to the nearest tenth sin x degree= 4/15

bulgar [2K]

Answer:

The value of x to the nearest tenth is, 15.5 degree

Step-by-step explanation:

Given that: $\Sin x = \frac{4}{15}$

To find the value of x;

Take inverse of sin both sides we have;

$\sin^{-1}(\sin x) = \sin^{-1}(\frac{4}{15})$

Simplify:

$x = \sin^{-1}(\frac{4}{15})$

Simplify:

$x = 15.46601015^{\circ}$

Therefore, the value of x to the nearest tenth is, 15.5 degree

3 0

3 years ago

Read 2 more answers

A fair dice is thrown what is the probability that a 6 4or 5 is thrown

antiseptic1488 [7]

There is a 3/6 or 1/2 chance that a 6, 4, or 5 is thrown. This is because a fair dice has as 6 sides, therefore, as three numbers were listed, there is a 3/6 probability that 6, 4 or 5 will be thrown.

4 0

3 years ago