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fredd [130]
3 years ago
5

Which pair of values could NOT be the roots of a quadratic polynomial?

Mathematics
2 answers:
DENIUS [597]3 years ago
7 0

Answer:

Part c

Step-by-step explanation:

In quadratic equations of real coefficients, the complex roots always occur in conjugate bases. It means, if, 2 + 3i is one of the roots and then the second root must be 2 - 3i.

sasho [114]3 years ago
6 0
That’s with be (c) you welcome!!!!
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HeLp Me pLeASe its due today!!!
Anarel [89]

Answer:

Should have paid attention in class

Step-by-step explanation:

But the answer is

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2 years ago
PLS HELP THIS IS DUE TODAY!!!!!! NO LINKS, NO STEALING POINTS, AND ONLY CORRECT ANSWERS OR YOU WILL BE REPORTED!!!!!!!
Mnenie [13.5K]
Should be A I’ll show you what I did though it might not make sense because I kind of did it in a weird way but yeah that answer should be A hope this helps :)
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2 years ago
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Michael is going to invest $15,000 into two savings accounts to save money to buy a house.
levacccp [35]

Answer:

Bank of Texas = $10,031.35

United Texas Bank = $10,500.00

Step-by-step explanation:

Bank of Texas

A=P(1+rt)

P=$7,500

r=6.75%

t=5 years

$10,031.35

refer the pic

United Texas Bank

A=P(1+rt)

P=$7,500

r=8%

t=5 years

$10,500.00

refer the sec pic

6 0
2 years ago
Solve the system by substitution.<br> 10x + 5y = -50<br> y = -x
Pie

Answer:

(1,-12)

Step-by-step explanation:

-10+5y=-50

5y=-60

y=-12

10x-60=-50

10x=10

x=1

8 0
3 years ago
Watching TV: In 2012, the General Social Survey asked a sample of 1326 people how much time they spent watching TV each day. The
Varvara68 [4.7K]

Answer:

We <em>fail to reject H₀ </em>as there is insufficient evidence at 0.5% level of significance to conclude  that the mean hours of TV watched per day differs from the claim.

Step-by-step explanation:

This is a two-tailed test.

We first need to calculate the test statistic. The test statistic is calculated as follows:

Z_calc = X - μ₀ / (s /√n)

where

  • X is the mean number of hours
  • μ₀ is the mean that the sociologist claims is true
  • s is the standard deviation
  • n is the sample size

Therefore,

Z_calc = (3.02 - 3) / (2.64 /√(1326))

           = 0.2759

Now we have to calculate the z-value. The z-value is calculated as follows:

z_α/2 = z_(0.05/2) = z_0.025

Using the p-value method:

P = 1 - α/2

  = 1 - 0.025

  = 0.975

Thus, using the positive z-table, you will find that the z-value is

1.96.

Therefore, we reject H₀ if | Z_calc | > z_(α/2)

Thus, since

| Z_calc | < 1.96, we <em>fail to reject H₀ </em>as there is insufficient evidence at 0.5% level of significance to conclude  that the mean hours of TV watched per day differs from the claim.

6 0
3 years ago
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