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Reptile [31]
3 years ago
7

Please help me with kahn academy

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

\large\mathfrak\red{answer}

- 2.1

(there you go mark me brainliest tho :))

defon3 years ago
7 0

Answer:

-2.1

Step-by-step explanation:

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I need help please and fast
patriot [66]

Answer:

20%

Step-by-step explanation:

The reason it is 20% is due to the fact that if you put it in a form showing 250/250 = 100/100 and put another proportional rate underneath it showing 200/250 = x/100, you would have to multiply the numerator of the fraction on the left by the denominator of the fraction on the right to get 20000. Now you divide 250 from 20000 and get x for 80, resulting in 80/100 or 80%. All you have to do now is subtract 100-80, which equals 20, resulting in 20%.

Hope that helps!! It's my first time in answering so, ya. ;D goodluck!

3 0
3 years ago
Read 2 more answers
N
sergeinik [125]

Answer: (0,4)

Step-by-step explanation:

3 0
2 years ago
What is the equation of the axis of symmetry for the parabola y= 1/4(x+2)^2-7
Nezavi [6.7K]
Your answer is -2 as the axis of symmetry is at -b/2a. So if you were to expand the equation, you would get y= x^2/4 +x -6 where b is 1 and 2a is ½ . Therefore -1 / ½ gives you -2
7 0
4 years ago
The amount of algae in a bloom, P, can be modeled by the equation P = t4 + 6t3 + 7t2 + 8t, where t is measured in weeks. When wi
Katyanochek1 [597]

(0,416, infinity) is the best answer

Thank you for your question, <u>your question is: The amount of algae in a bloom, P, can be modeled by the equation P = t4 + 6t3 + 7t2 + 8t, where t is measured in weeks. When will the population of algae be greater than 500?</u>

8 0
3 years ago
Read 2 more answers
Brainiest is given to whoever answers right!
Brilliant_brown [7]

Answer:

B

Step-by-step explanation:

Given inequality is open at - 3 and closed at 4. Therefore the required inequality would be:

- 3 < x \leqslant 4

Thus, option B is the correct answer.

5 0
3 years ago
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