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3 years ago

In which quadrant does the point (-4, -5) lie?

Mathematics

2 answers:

Mariulka [41]3 years ago

6 0

3rd quadrant. because both x and y are negative

Lemur [1.5K]3 years ago

3 0

Answer:

Quadrant 3

Step-by-step explanation:

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A certain lottery game, 32 numbers are randomly mixed and 7 are selected. A person must pick all 7 numbers to win. Order is not

lorasvet [3.4K]

Answer:

Below.

Step-by-step explanation:

The number of combinations of 7 from 32 = 32! / 7! (32-7)!

= 3365856

So it is 1/ 3365856 = 0.000000297

or about 3 in 10,000,000.

3 0

3 years ago

A marshy region used for agricultural drainage has become contaminated with a particular element. It has been determined that fl

kipiarov [429]

Answer:

8.49%

Step-by-step explanation:

x months

$f(x) =\frac{x^2+64}{2x}$ 1 ≤ x ≤ 12

minimum: $f'(x) = 0$

$f'(x) = (\frac{x^{2} +64}{2x})' = \frac{(x^{2} +64)'.2x - (x^{2} +64).(2x)'}{(2x)^2}= \frac{2x.2x-(x^{2}+64).2}{4x^{2} } = \frac{4x^2 - 2x^2-64}{4x^2}=\frac{2x^2-64}{4x^2}$

$\frac{x^2-32}{2x^2} = 0 \\x^{2} -32 = 0\\x^{2} =32\\x = \sqrt{32}\\ x = 4\sqrt{2}$

$f(4\sqrt{2} ) = \frac{(4\sqrt{2})^2 +64}{2.4\sqrt{2} } = \frac{32+64}{8\sqrt{2} } = \frac{96}{8\sqrt{2} }=\frac{12}{\sqrt{2} } = 6\sqrt{2}$ ≅8.49%

5 0

3 years ago

Find the coordinates for the midpoint of the segment with endpoints given. (12, 4) and (-8, 8) (2, 6) (10, 6) (2, 2)

cluponka [151]

The given coordinates are:
p1: (12,4) and p2: (-8,8)

Th x coordinate of the midpoint is calculated as follows:
Xmidpoint = (x1+x2) / 2 = (12+-8) / 2 = 4/2 = 2

The y coordinate of the midpoint is calculated as follows:
Ymidpoint = (y1+y2) / 2 = (4+8) / 2 = 12/2 = 6

Based on the above calculations, the midpoint of the segment with the given coordinates is (2,6)

8 0

3 years ago

3. 5 bananas cost $2. At this rate, how much do 4 bananas cost?

Annette [7]

Answer:

$1.60

Step-by-step explanation:

Write out a proportion.

5 bananas/$2 = 4 bananas/$x

Simplify the proportion, by cross multiplying.

2 times 4 equals 8, then divide 8 by 5, which will give you our variable x.

8/5 is the same as 1.60, so the cost of 4 bananas will cost $1.60.

Hope this helped,

Philip

Brainliest always appreciated! <3

6 0

3 years ago

I need help on this

Goshia [24]

I'm pretty sure the answer is A

6 0

3 years ago