3 years ago

How many real roots does the quadratic function f(x)= -5x^2 have?

Mathematics

1 answer:

Naya [18.7K]3 years ago

5 0

1 root I believe this is the correct answer

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You’re going to use your TI-83 graphing calculator to compute the area between values of 7 and 9 for a distribution whose mean i

astraxan [27]

Answer: The answer is A

Step-by-step explanation: You use normalcdf to find the area under a curve. The lower bound (in this case 7) goes first followed by the upper bound, mean, and standard deviation.

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3 years ago

How do you solve z= - 2/3a, for a

gogolik [260]

Z = -2/3a
divide by -2/3 on both sides
a = z divided by -2/3
a = -3/2z

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4 years ago

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An art academy requires there to be 3 teachers for every 60 students 4 tutors for every 48 student how many students does the ac

vfiekz [6]

Answer:

per teacher = 20 students

per tutor = 12 students

72 students = 18 tutors

Step-by-step explanation:

Divide 60 by 3 to get 20

Divide 48 by 4 to get 12

Divide 72 by 4 to get 18

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4 years ago

9) 2n - 14=4n + 4n<br> what’s the answer

Artist 52 [7]

The answer is

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6 0

4 years ago

Solve logarithm Equation: log2 (12b - 21) - log2 (b^2 - 3)=2

Vikki [24]

Hn, well you should use the rule to answer this.. $log_a(n)-log_a(m)=log_a (\frac{n}{m} )$
Sorry if this doesn't seem to help, but here is the explanation:
$log_2 (\frac{12b-21}{b^2-3} )=2$
$\frac{12b-21}{b^2-3} =4$
$12b-21=4(b^4-3)$
$0=4b^2-12b-12+21$
$0=4b^2-12b+9
$
$0=4b^2-6b-6b+9$
$0=2b(2b-3)-3(2b-3)$
$0=(2b-3)(2b-3)$
$b= \frac{3}{2}$
Hn, so from this information we can determine that this solution does not work. And so forth your solution set shall indeed be: {x= 0}

I wish you good luck on your homework and hopefully I was somewhat beneficial to your needs.

Best regards~ Sans

7 0

3 years ago