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3 years ago

Snog i neeeeedddd ur help plz and I will stop report just help plz if not I will not have brainly.

Mathematics

2 answers:

Lapatulllka [165]3 years ago

8 0

Answer:

± 7i

Step-by-step explanation:

± sqrt( -49)

We can split this into 2 sqrt's

± sqrt( -1) sqrt(49)

We know that the square root of -1 is i, the imaginary number

± sqrt( -49) = ± i * 7

± 7i

MissTica3 years ago

5 0

Answer:

+- i7 or 7i

Step-by-step explanation:

Take out the - sign

- then becomes i or imaginary number

_+ i ✓49

solve square root

+_ i 7

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A football is kicked vertically upward from a height of 3 feet with an initial speed of 70 feet per second. The formula h=3+70t-

OLga [1]

Answer:

69 feet

Step-by-step explanation:

3 seconds is a unit of time, t. So if we want the height of the ball, h, 3 seconds after it was kicked, we plug in 3 for t and solve for h:

$h=3+70(3)-16(3)^2$ which simplifies to

h = 3 + 210 - 144 so

h = 69 feet

6 0

3 years ago

What is the equation of a line that is parallel to the line whose equation is y = x + 2?

Cloud [144]

Answer:

y=(1)x+5

Step-by-step explanation:

6 0

3 years ago

The LCM of 12 and 27 and the HCF of 24 and 64 have a highest common factor of

Fittoniya [83]

Hello! It's been a while since I've did LCM and HCF, but I believe your answer is 2.

First, you find the LCM of 12 and 27. This will be 108.

27,54,81,108

12,24,36,48,60,72,84,96,108

Next, you'll want to find the HCF of 24 and 64. This will be 4.

24: 1 · 24, 2 · 12, 3 · 8, 4 · 6

64: 1 · 64, 2 · 32, 4 · 16, 8 · 8

1 , 2 , 4

Finally, you have to find the HCF of 108 and 4. This will result in your answer, 2.

Factors of 108: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108

Factors of 4: 1, 2

1, 2

Hope this helps you. Have a great day! (. ❛ ᴗ ❛.)

8 0

4 years ago

You order an entree for $12.00. You pay $0.78 in taxes. What is the tax rate?

Natasha2012 [34]

The tax rate will be 6.5 percent. Hope it help!

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3 years ago

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The general form of the equation of a circle is x^2 + y^2 + 2x - 6y + 1 = 0. What are the coordinates of the center of the circl

m_a_m_a [10]

The coordinates are (-1 , 3).

this can be shown by simplifying the equation into perfect squares.

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3 years ago