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olasank [31]
3 years ago
5

Calculate the simple interest earned on an investment of $26,000 at 8% p.a. Over 3 years.

Mathematics
1 answer:
Annette [7]3 years ago
6 0
I=prt
I=26,000×0.08×3
I=6,240
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Show the work please
Kay [80]

Answer:

1) (x + 3)(3x + 2)

2) x= +/-root6 - 1 by 5

Step-by-step explanation:

3x^2 + 11x + 6 = 0 (mid-term break)

using mid-term break

3x^2 + 9x + 2x + 6 = 0

factor out 3x from first pair and +2 from the second pair

3x(x + 3) + 2(x + 3)

factor out x+3

(x + 3)(3x + 2)

5x^2 + 2x = 1 (completing squares)

rearrange the equation

5x^2 + 2x - 1 = 0

divide both sides by 5 to cancel out the 5 of first term

5x^2/5 + 2x/5 - 1/5 = 0/5

x^2 + 2x/5 - 1/5 = 0

rearranging the equation to gain a+b=c form

x^2 + 2x/5 = 1/5

adding (1/5)^2 on both sides

x^2 + 2x/5 + (1/5)^2 = 1/5 + (1/5)^2

(x + 1/5)^2 = 1/5 + 1/25

(x + 1/5)^2 = 5 + 1 by 25

(x + 1/5)^2 = 6/25

taking square root on both sides

root(x + 1/5)^2 = +/- root(6/25)

x + 1/5 = +/- root6 /5

shifting 1/5 on the other side

x = +/- root6 /5 - 1/5

x = +/- root6 - 1 by 5

x = + root6 - 1 by 5 or x= - root6 - 1 by 5

4 0
3 years ago
If a square has a side length of 5cm what would the area be
EastWind [94]

Answer:

25 cm squared

Step-by-step explanation:

To find area we multiply the side lengths

5cm x 5cm=25 cm squared

3 0
3 years ago
The room measures 8 inches by 5 inches on the blueprint. If the scale on the blueprint is 1 inch by 4 feet, what is the actual a
larisa86 [58]
Hi there!

To solve this problem, we need to multiply each number by 4 ft.

8×4=32
5×4=20

Now, we films the area.

32×20 = 640

The area of the room is 640 feet squared.

Hope this helps!
3 0
3 years ago
What math concepts are important in solving the problem
Elden [556K]

Answer:

it could be a formula ex- l times w = area

Step-by-step explanation:

7 0
3 years ago
Sedimentary rocks are rocks that are made of sediments that come from ? A other rocks B Tall mountains C deposits of rivers and
Finger [1]

Answer:

its c

Step-by-step explanation:

3 0
3 years ago
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