The present value of the money in your savings account is $420, and you're receiving 3% annual interest compounded monthly. What is the future value in two months?

Answers

Answer 1
Answer: =420(1+0.03/12)^2 use the calculator to find the answer

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A small toy car costs $3 a large toy car costs 5 times as much as the small one Aaron want to buy 1 of each which equation can be used to find the cost a of the 2 cars

Answers

Answer:

$18

Step-by-step explanation:

small -$3

large - $15

3+15=18

Answer: The equation is $3 + ($3 x 5)

Step-by-step explanation:

You add $3 to 3 multiplied by 5 to get the cost of the second car which will then give you the cost of both cars. Then you simplify and get $3 + $15 which gives us the answer $18. So the cost of both the cars is $18.

Is 2^7 the same as 2 x 7? Why or why not?

Answers

Answer: No

Explanation: In the first problem, 2 is a base and 7 is an exponent.

The 7 that is raised up means we multiply our base together seven times.

This means the same thing as 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 or 128.

On the other hand, 2 × 7 is 14.

It can also be thought of as 2 + 2 + 2 + 2 + 2 + 2 + 2 or 14.

Answer:

No, 2^7 is not the same thing as 2 x 7

Step-by-step explanation:

When you are doing 2 x 7 you multiply 7 by 2. For 2^7, you multiply 2 by 2 7 times.

2 x 7 = 2 x 7

2^7 = 2 x 2 x 2 x 2 x 2 x 2 x 2

A 3-pound tub of butter at n dollars per pound costs $3.85. 3n = 3.85 3 - n = 3.85 3 + n = 3.85 3/n = 3.85

Answers

Given:
3-pound tub of butter costs $3.85

3.85/3 = 1.2833 per pound.

3n = 3.85

3(1.2833) = 3.85
3.8499 = 3.85
3.85 = 3.85
If you would like to know how much does a 1-pound tub of butter cost, you can calculate this using the following steps:

3-pound tub of butter ... $3.85
1-pound tub of butter ... $n = ?

3 * n = 3.85 * 1
3 * n = 3.85
n = 3.85 / 3
n = $1.28

The correct result would be 3 * n = 3.85.

HELP? (Simplify in radical form)

Answers

Answer: 12

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors.

Select the proper placement for parentheses to speed up the addition for the expression 2+9+8+1

Answers

Answer:

(8+2) and (9+1) is the most fastest adding pair.

Step-by-step explanation:

It is easy to add zero digit number here it will be

We can club the two number or we can club two pair so as to form 10 in each of the pair

It will be (8+2) which gives 10

And (9+1) which gives 10

And it will very easy and fast to add 10 + 10

Rather than any other pair.

2+9+8+1 = (2+8) + (9+1) = 10 + 10 = 20

X^2-5x-24=0

3x^2+x-4=0

Solve by factoring or using the quadratic formula

Answers

x^2-5x-24=0\n\n-5x=3x-8x\n-24=3\cdot(-8)\n\nx^2-5x-24=0\n\n\Downarrow\n\n(x+3)(x-8)=0\iff x+3=0\ \vee\ x-8=0\n\nx=-3\ \vee\ x=8

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3x^2+x-4=0\n\na=3;\ b=1;\ c=-4\n\n\Delta=b^2-4ac\to\Delta=1^2-4\cdot3\cdot(-4)=1+48=49\n\nx_1=(-b-\sqrt\Delta)/(2a)\to x_1=(-1-√(49))/(2\cdot3)=(-1-7)/(6)=(-8)/(6)=-(4)/(3)\n\nx_2=(-b+\sqrt\Delta)/(2a)\to x_2=(-1+√(49))/(2\cdot3)=(-1+7)/(6)=(6)/(6)=1
x^2-5x-24=0\n x^2+3x-8x-24=0\n x(x+3)-8(x+3)=0\n (x-8)(x+3)=0\n x=8 \vee x=-3

3x^2+x-4=0\n 3x^2-3x+4x-4=0\n 3x(x-1)+4(x-1)=0\n (3x+4)(x-1)=0\n x=-(4)/(3) \vee x=1