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zzz [600]
3 years ago
7

18 points!!!!! Help please I’ve a got a test tomorrow and I have not revised so please some one help... if you have answered it

please can you stay to help the rest

Mathematics
1 answer:
monitta3 years ago
5 0

Answer:

x = (-b±(√b²-4ac))/2a

Step-by-step explanation:

Here's a mnemonic I use to remember the quadratic formula:

The bad (negative) boy was deciding (plus or minus) whether to go to a radical (radical) party or be squared (b²) and miss out (minus) on four awesome chicks<-- don't really like that word, I use creatures lol (4ac) and the party was over at 2 AM (all over 2a).

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A football field is 300 feet long. A sloth moving very quickly travels 60 feet every 5 minutes. Based on this ratio, how many mi
nalin [4]
25 minutes.

Explanation: if the field is 300 feet and the sloth travels 60 feet every 5 minutes, you would divide 300 feet by 60 feet to determine the distance the sloth can travel. That gives you 5, then you would multiple 5 by 5 minutes.

side note: there’s probably a simpler way to explain this
3 0
3 years ago
What is the imaginary part of z?
Shkiper50 [21]

Answer:

The imaginary part is the multiple of i. It is common practice to use the letter z to stand for a complex number and write z = a + bi where a is the real part and b is the imaginary part. where a is the real part and b is the imaginary part.

Step-by-step explanation:

You can easily check that a complex number z = x + yi times its conjugate x – yi is the square of its absolute value |z|2. Therefore, 1/z is the conjugate of z divided by the square of its absolute value |z|2.

Complex numbers A complex number z is defined as an ordered pair z = (x, y), where x and y are a pair of real numbers.

8 0
3 years ago
The figure is made up of two shapes a semi circle on a rectangle what is the exact perimeter of the
Llana [10]

The perimeter of the composite shape is: (3π + 12)mm

<h3>What is a semicircle?</h3>

A semicircle is a part of a circle cut through its diameter.

Analysis:

perimeter of a semicircle = πr

where r = 6/2 = 3mm

perimeter of a semicircle = π(3)  = 3π

perimeter of incomplete rectangle = L+2B, L = 6mm, B = 3mm

perimeter of rectangle = 6mm +2 x 3= 12mm

perimeter of shape = (3π+12)mm

In conclusion, the perimeter of the rectangle is (3π+12)mm

Learn more about semicircles :brainly.com/question/285710

#SPJ1

3 0
2 years ago
Order the fractions from least to greatest: 1/2 1/3 1/4
SashulF [63]

Answer:

1/4, 1/3, 1/2 is your answer.

Step-by-step explanation:

1/4 in a decimal is .25.

1/3 in a decimal is .33 repeating.

1/2 in a decimal is .5.

1/4, 1/3, 1/2 is your answer.

4 0
3 years ago
Gina made a scale drawing of a house and its lot. She used the scale 1 inch: 4 feet. If the house's
denpristay [2]

Answer:

The driveway is 36 feet

Step-by-step explanation:

1 in = 4 feet

2 in = 8 feet

This shows us that you have to multiply 4 by how many inches there is.

3 0
3 years ago
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