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2 years ago

Solve k? - 3 = 3k using the quadratic formula.

Mathematics

1 answer:

olga2289 [7]2 years ago

5 0

Answer: k= -1

Step-by-step explanation: cant to quadratic as it is not in standard form

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Help please, 10 points

damaskus [11]

Answer:

12 feet

Step-by-step explanation:

Finding the missing side

(?)² + (35)² = (37)²
?² + 1225 = 1369
?² = 144
? = √144
? = 12 feet

7 0

2 years ago

Find the fourth roots of 256(cos 240° + i sin 240°).

Mashcka [7]

Answer with Step-by-step explanation:

We are given that

We have to find the fourth roots of given complex number.

$(256)^{\frac{1}{4}}=(4^4)^{\frac{1}{4}}=4^^{\frac{1}{4}\times 4}=4$

By using the formula

$(a^b)^x=a^{bx}$

$\theta=240^{\circ}$

$\theta=\frac{240}{4}=60^{\circ}$

Angle of rotation= $\frac{360}{4}=90^{\circ}$

Therefore, the four roots of given complex number are

$4(cos 60^{\circ}+i sin60^{\circ})$

$4(cos150^{\circ}+i sin150^{\circ})$

$4(cos240^{\circ}+isin 240^{\circ})$

$4(cos330^{\circ}+i sin330^{\circ})$

8 0

2 years ago

Determine the approximate value of A.

bonufazy [111]

Answer:

40 degrees

Step-by-step explanation:

If all triangles add up to 180°, the 180-104-36=40, so the answer is 40°

4 0

3 years ago

N- 0.125= 4.1 what is N?

guajiro [1.7K]

Well, lets add 0.125 to 4.1.

We would get 4.225.

Finally we can check.

4.225-0.125= 4.1

How did we get it? What i did is I did the opposite. Instead of subtracting 0.125 I added it.

N= 4.225

4 0

3 years ago

Read 2 more answers

What would a box and whisker plot look like for this?

Readme [11.4K]

58, 62, 71, 73, 84, 89, 91, 91, 93, 97, 98, 101,104

Five number summary:
1) minimum = 58
2) 1st quartile = 72
3) median = 91
4) 3rd quartile = 98
5) maximum = 104
 __________
 --------| | |------------
58 72 91 98 104

3 0

2 years ago