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3 years ago

PLEASE HELP Meeeeeeeeeeeeeeeeee

Mathematics

1 answer:

klemol [59]3 years ago

3 0

The answer is A.Use a compound interest calculator. Multiple sites to use. For me, I had to use my head for a while

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Evaluate the expression when x= -3 and y=3 y-8x

tatuchka [14]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

Identify

x = -3

y = 3

y - 8x

Step 2: Evaluate

Substitute in variables: 3 - 8(-3)
Multiply: 3 + 24
Add: 27

5 0

2 years ago

Read 2 more answers

How to find interval of interest of objective function?

Julli [10]

The interval of interest for your objective function depends on your optimization problem.

3 0

3 years ago

A combined total of 39000 is invested in two bonds that pay 5% and 6.5% simple interest. The annual interest is 235500 how much

dolphi86 [110]

Answer:

$12000 at 5%

$27000 at 6.5%.

Step-by-step explanation:

Let x represent amount invested at 5% and y represent amount invested at 6.5%.

We have been given that a combined total of 39000 is invested in two bonds. We can represent this information in an equation as:

$x+y=39000...(1)$

We are also told that the annual interest rate is 2355.00. We can represent this information in an equation as:

$0.05x+0.065y=2355...(2)$

Upon substituting equation (1) in equation (2), we will get:

$0.05x+0.065(39000-x)=2355$

$0.05x+2535-0.065x=2355$

$-0.015x+2535=2355$

$-0.015x=2355-2535$

$-0.015x=-180$

$\frac{-0.015x}{-0.015}=\frac{-180}{-0.015}$

$x=12000$

Therefore, an amount of $12,000 is invested at 5%.

Upon substituting $x=12000$ in equation (1), we will get:

$12000+y=39000$

$y=39000-12000$

$y=27000$

Therefore, an amount of $27,000 is invested at 6.5%.

4 0

3 years ago

Can someone Help me with this? I want to know HOW to do it so plz include explanation.

Svetlanka [38]

Answer:

Step-by-step explanation:

Slope of the line $\frac{1}{3}$ through out the line.

8 0

3 years ago

Find the volume of this sphere. Use 3 for TT. V V ~ [?]cm3 V = nr3 r=6cm

Katen [24]

Answer:

$V = 864cm^3$

Step-by-step explanation:

Given

$r = 6$

$\pi = 3$

Required

The volume of the sphere

This is calculated as:

$V = \frac{4}{3} \pi r^3$

So, we have:

$V = \frac{4}{3} *3 *6^3$

$V = \frac{4}{3} *3 *216$

This gives:

$V = 4 *216$

$V = 864$

6 0

3 years ago