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timurjin [86]
4 years ago
10

Find -2 2/5 + 4/5 need help please

Mathematics
1 answer:
diamong [38]4 years ago
4 0

Step-by-step explanation:

-22/5 +4/5

The lcm of the denominators is 5

If you divide through u have - 22+4=-18

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Consider the following equation.
EastWind [94]

The approximate solution of the above equation is: 55/15 (Option A). This is solved using the quartic formula, not quadratic equation.

<h3>What is the Quartic Formula?</h3>

The quartic formula has up to four various solutions including real and imaginary numbers. Read on for more explanation.

<h3>What is the solution to the above question?</h3>

First we restate the above equation:

x²-3x+2= √(x-2) + 2

Next we remove square roots

x^{4} - 6x³ + 9x² = x - 2

Add two to both sides

→ x^{4} - 6x³ + 9x²+2 = x - 2 +2

→  x^{4} - 6x³ + 9x²+2 = x

Subtract X from both sides

→  x^{4} - 6x³ + 9x²+2 -x = x -x

→  x^{4} - 6x³ + 9x²+2 - x= 0

Using the Quartic formula to solve the fourth order equation:
ax^{4} + bx³ + cx² + dx + e

The resolution of x is given as:

x = 2.691085, 3.346753

Because the fraction nearest to 3.4 is 55/16

hence, the correct answer is Option A.

Learn more about quadratic equations at;
brainly.com/question/25841119
#SPJ1



6 0
2 years ago
How can you use properties of multiplication to determine what the factors are
aleksandrvk [35]
Factors can be multiplied together to get the original number.

For example here are the factors of 66.

1 and 66. 2 and 33. 3 and 22. 6 and 11.

1 multiplied by 66 results in the original number 66.

2 multiplied by 33 results in the original number 66.

3 multiplied by 22 results in the original number 66.

<span>6 multiplied by 11 results in the original number 66.</span>
6 0
3 years ago
simplify (x − 2)(x + 9) using the table method, and identify the resulting expression in standard form.
NeX [460]

Answer:

this should be right if not comment and I'll relook it.

FOIL Method.

You will get the same answer x^2+ 7x- 18

5 0
4 years ago
Read 2 more answers
Need help ASAP! Giving Brainliest!
allsm [11]

ok thats cool ig what do you need help with

4 0
3 years ago
Read 2 more answers
Evaluate 5x – 2y + (7x – y) for x = 7 and y = –2
Lynna [10]

Answer:

90

Step-by-step explanation:

5x – 2y + (7x – y)

Combine like terms

12x -3y

Let x = 7 and y = -2

12(7) -3(-2)

84 +6

90

6 0
3 years ago
Read 2 more answers
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