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3 years ago

Help me pleasee!!!!!!!!!!!!!!!

Mathematics

1 answer:

marishachu [46]3 years ago

5 0

Answer:

Step-by-step explanation:

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Find the sum , write fractions in simple form 11/12 + (-7/12)

dybincka [34]

Answer:

1/3

Step-by-step explanation:

11/12 -7/12 = 11-7/12 =4/12 =1/3

3 0

2 years ago

Read 2 more answers

7 2/15 + 5 2/3 +9 13/15

crimeas [40]

21+

LCD = 1515

21+

3×5

2×5

21+

2+10+13

21+1

done

the answer of this question is last one

4 0

2 years ago

A neighbor needs to put up a square fence around her garden to keep the deer out. If the area is 500 square feet, how much fence

Maurinko [17]

Let's say side length is s.
s*s = 500, so s = √500.

4 sides needed, total length thus 4*s.

4√500 ≈ 89.4

4 0

3 years ago

Solve 5x^2 − 3x + 17 = 9.

Vedmedyk [2.9K]

Answer:

The roots of the equation are x = $\frac{3+\sqrt{151}i}{10}$ and x = $\frac{3-\sqrt{151}i}{10}$

and there are no real roots of the equation given above

Step-by-step explanation:

To solve:

5x² − 3x + 17 = 9

⇒ 5x² − 3x + 17 - 9 = 0

⇒ 5x² − 3x + 8 = 0

Now,

the roots of the equation in the form ax² + bx + c = 0 is given as:

x = $\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

in the above given equation

a = 5

b = -3

c = 8

therefore,

x = $\frac{-(-3)\pm\sqrt{(-3)^2-4\times5\times8}}{2\times5}$

x = $\frac{3\pm\sqrt{9-160}}{10}$

x = $\frac{3+\sqrt{-151}}{10}$ and x = $\frac{3-\sqrt{-151}}{10}$

x = $\frac{3+\sqrt{151}i}{10}$ and x = $\frac{3-\sqrt{151}i}{10}$

here i = √(-1)

Hence,

The roots of the equation are x = $\frac{3+\sqrt{151}i}{10}$ and x = $\frac{3-\sqrt{151}i}{10}$

and there are no real roots of the equation given above

7 0

3 years ago

-2•f(-6) - 7•g(-7)<br> Can someone please help me

pantera1 [17]

Answer:

Your answer is: 12f + 49g

Simplify each term.

Step-by-step explanation:

Hope this helped : )

5 0

3 years ago