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Dimas [21]
2 years ago
15

6.

Mathematics
1 answer:
vova2212 [387]2 years ago
4 0
Ask your friends thanks me latte
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Caroline spent $42.14 on groceries after using coupons and store discounts. Without the coupons and store discounts, the groceri
mash [69]
The answers is 14%
49 multiply by 14% is 6.86
42.14 + 6.86= 59
6 0
3 years ago
Solve the following equation using the quadratic formula.
konstantin123 [22]

Answer:

x = 4   ±9i

Step-by-step explanation:

x^2 - 8x + 97 = 0

Complete the square by subtracting 97 from each side

x^2 - 8x =- 97

Take the coefficient of x

-8 and divide by 2

-8/2 = -4

Then square it

(-4)^2 = 16

Add it to each side

x^2 - 8x + 16 = -97+16

(x-4)^2 = -81

Take the square root of each side

x-4 = ±sqrt(-81)

x-4 = ±9i

Add 4 to each side

x = 4   ±9i

5 0
3 years ago
Read 2 more answers
Eight more than three times a number is equal to the number.<br> What is the number
hodyreva [135]

Answer:

-4

Step-by-step explanation:

-4(3) = -12

-12 + 8 = -4

3 0
2 years ago
Read 2 more answers
Please I need help does anyone know a hack for khan academy
Evgesh-ka [11]

Answer:

Answer:

0.3643

Step-by-step explanation:

Standard Form and Scientific Notation

What is standard form of numbers?

Standard form is the normal way of writing numbers no matter how big or small the number is.

Examples:

15,000,000

0.0000000678

What is scientific notation?

Scientific notation is a different way of expressing numbers. It is a short way of expressing very big numbers or very small numbers. It is also known as exponential form. Scientific notation is written as the product of a number and a power of 10.

Examples:

1.3 × 10⁶

34.5 × 10^⁻9

Going back to the question above, we need to convert the given scientific notation to its standard form.

Converting of Scientific Notation to Standard Form

To convert a number from scientific notation to standard form, move the decimal point.

The exponent tells the direction and the number of times we need to move the decimal point.

The positive exponent indicates a large number so we need to move the decimal point to the right.

The negative exponent indicates a small number so we need to move the decimal point to the left.

Do not write the power of 10 anymore.

Solution:

Now, let us convert 3.643 x 10^-1 in standard form.

The exponent is negative 1 so we will move the decimal point to the left once.

3.643 = 0.3643

7 0
2 years ago
I do not know anything
grin007 [14]
You have to use the formula a=principal or initial amount(1+rate or %)^time or years
5 0
3 years ago
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