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insens350 [35]
2 years ago
8

How many solutions does the equation have? x^4 + 7x^2 – 144 = 0

Mathematics
1 answer:
Amiraneli [1.4K]2 years ago
7 0

Answer:

The equation has no real solutions. It has 2 imaginary, or complex solutions.

Step-by-step explanation:

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Alex

Answer:

C. 3

Step-by-step explanation:

-9 * -1/3

= -9/ -3

A negative divided by a negative is a positive

9/3

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7 0
3 years ago
a teacher is experimenting with computer- based instruction. In which situation could the teacher use a hypothesis test for a di
Ilia_Sergeevich [38]

Answer:

(i) She gives each student a pretest. Then she teaches a lesson using a computer program. Afterwards, she gives each student a posttest. The teacher wants to see if the difference in scores will show an improvement.

Step-by- Step

The situation is a case of matched or paired samples since the samples are dependent. The two measurements are drawn from the same pair of individuals The parameter that is tested using matched pairs is the population mean and this is what teacher intends to use a hypothesis test for.

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3 years ago
What are the corresponding steps used to find the product of (2x + 1)(x + 1)?
Margarita [4]

Answer:

(2 x +1) ( x + 1)  = 2 x² + 3 x + 1

Step-by-step explanation:

The steops used to find the product of (2 x + 1) (x + 1) are

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4 0
3 years ago
U + 3b - 2a + 2 solve for a
MA_775_DIABLO [31]

Answer:

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Step-by-step explanation:

u=3b-2(2) or u=3b-4

3 0
3 years ago
How to calculate monthly salary 5,000 month salary?
Vlada [557]
We have to calculate by multiplying 5,000 and total number of months
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