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Rus_ich [418]
3 years ago
7

50 points!!

Mathematics
2 answers:
V125BC [204]3 years ago
6 0

Answer:

the answer is 2

Step-by-step explanation:

I completed the test

Daniel [21]3 years ago
4 0

Answer:

iykvhchjgmh.Algal blooms have dramatic effects on water chemistry, most notably pH and dissolved oxygen (DO). When algae remove carbon dioxide during photosynthesis they raise the pH by increasing the level of hydroxide. The opposite reaction occurs during respiration when carbon dioxide is produced lowering hydroxide and lowering the pH.

Step-by-step explanation:

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X∞n=0<br> (2<br> n + 1)<br> x<br> 2<br> n
Black_prince [1.1K]

Answer:3

If x=0 or x=1 it is trivial, so 0<x<1. Define a=1−x2, then 0<a<1.

Step-by-step explanation:

6 0
3 years ago
Which equation has the solutions x = startfraction 5 plus-or-minus 2 startroot 7 endroot over 3 endfraction?
Shtirlitz [24]

The equation that has the solution x = \frac{5 \pm \sqrt{7}}{3} is 3x^2 - 10x + 6 = 0

<h3>How to determine the equation?</h3>

The solution is given as:

x = \frac{5 \pm \sqrt{7}}{3}

The solution to a quadratic equation is

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

By comparing both equations, we have:

-b = 5

b^2 - 4ac = 7

2a = 3

Solve for b in -b = 5

b = -5

Solve for a in 2a = 3

a = 1.5

Substitute values for a and b in b^2 - 4ac = 7

(-5)^2 - 4 * 1.5c = 7

Evaluate

25 - 6c = 7

Subtract 25 from both sides

-6c = -18

Divide by - 6

c = 3

So, we have:

a = 1.5

b =  -5

c = 3

A quadratic equation is represented as:

ax^2 + bx + c = 0

So, we have:

1.5x^2 - 5x +3 = 0

Multiply through by 2

3x^2 - 10x + 6 = 0

Hence, the equation that has the solution x = \frac{5 \pm \sqrt{7}}{3} is 3x^2 - 10x + 6 = 0

Read more about quadratic equation at:

brainly.com/question/1214333

#SPJ1

7 0
2 years ago
If you could help I would really appreciate it, but if not that’s fine. Thank you.
tigry1 [53]
Since 6 is greater than 5 you input it into the last equation!

2•(6^2) -7
2•(36) -7
72 -7
65

The answer is 65!
5 0
3 years ago
How do you calculate -16+(-22)-14=
BlackZzzverrR [31]
-16 + (-22) - 14

First, simplify your brackets. / Your problem should look like: -16 - 22 - 14
Second, subtract -16 - 22 - 14 to get -52. / Your problem should look like: -52

Answer: -52

7 0
3 years ago
Given that a rectangle has an area of 35cm^2 and a perimeter of 24cm. What are the length and width of the rectangle?
True [87]

Answer: width= 5cm Length= 7

Step-by-step explanation:

8 0
3 years ago
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