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Tju [1.3M]
3 years ago
14

(8x² + 3x + 9) - (6x² + x + 6).

Mathematics
1 answer:
joja [24]3 years ago
3 0

Answer:

Step-by-step explanation:

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Find the value of an investment of $20,000 for 12 years at an annual interest rate of 3.85%
MatroZZZ [7]

Answer:

<h2> $31,745</h2>

Step-by-step explanation:

Compound continuously:

FVn = PV x e^rn

where

PV = $20,000

r = 3.85%

n = 12 years

plugin values into the formula:

FV₁₂ = $20,000 x e ⁰°⁰³⁸⁵ ⁽¹²⁾

FV₁₂ = $31,745

3 0
3 years ago
It costs Mrs. Smith $4.00 to make a pie. She sells them for $12 each. What is the Markup rate (percent)?
nignag [31]
70% I think beacuse she is making more profit about 70% then she bought it for
4 0
2 years ago
Read 2 more answers
Karl invests $35,000 for 8 years in an account paying 7% compounded daily. Find
ivolga24 [154]

Answer:

principal (p)=$35000

time(t)=8years

rate ( r)=7%

Step-by-step explanation:

  • compounded amount(c.a)=p((1+r/100)^t )=$35000((1+7/100)^8)=$60136.5
  • compound interest gain=$60136.5-$35000=$25136.5
  • Karl gain interest in 1 year=$35000((1+7/100)-1)=$2450
  • gain % in 1 year=$2450/$25136.5×100%=9.74%
7 0
3 years ago
Help with parts A B and C <br> Thank you
Vanyuwa [196]
A will be 7 x 5
B will be 10x10
8 0
3 years ago
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Which method would be best (quickest) for solving the system below:<br> 3x - 4y = -2<br> y = 2x + 1
taurus [48]
To solve with Elimination:

Write the equations under one another, like this:

2x - y = -1
+ 3x + 4y = 26

Ideally, we would like for one of the variables to be eliminated when we add vertically (straight down). But if we add them as they are this does not happen. We must manipulate one of the equations so that it will happen. Again, you can try to eliminate either x or y. I always look for a term that has a coefficient of 1 (or negative 1). So, let's use that y from the first equation again.

If the coefficient of the y in the other equation is POSITIVE 4, then I need the coefficient from the first equation to be its opposite, NEGATIVE 4. To do this, simply multiply the first equation by 4, this will create MAGIC!

4( 2x - y = -1)
+ 3x + 4y = 26

Be certain to Distribute across the entire first equation, so multiply all three terms by 4.

8x - 4y = -4
+ 3x + 4y = 26

Now add straight down (vertically). The y term will be eliminated.

11x = 22

Divide both sides of the equation by 11.

x = 2

Almost there! Now, substitute the 2 in for x in either of the original equations. Either one will work. I'm gonna use the second equation.

3x + 4y = 26

3(2) + 4y = 26

6 + 4y = 26

Subtract 6 from both sides of the equation.

4y = 20

Divide both sides of the equation by 4.

y = 5

That's it! There it is again. Put it all together. If x = 2 and y = 5, then the solution is the ordered pair, (2,5).
8 0
2 years ago
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