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My name is Ann [436]
3 years ago
6

Hey can you please help me posted picture of question

Mathematics
1 answer:
ipn [44]3 years ago
7 0
The number of roots of a quadratic function can be determined from its discriminant.

If Disc> 0, the function has two distinct roots
If Disc = 0, the function has a repeated root
If Disc < 0, the function has no real root.

The discriminant can be calculated as:

Disc = b² - 4ac

For the given equation:

Disc = 9 - 4(2)(1) =1

Since the value of discriminant is positive, the function will have two distinct roots.

So, the answer to this question is option B
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The following multiple regression printout can be used to predict a person's height (in inches) given his or her shoe size and g
alisha [4.7K]

Answer:

a. 8.95

b. it is

c. yes it belongs

d. males are 2.574 taller than females on average.

Step-by-step explanation:

GIven the regression outpuit that we have in this question, the value of the t test statistics for the shoe size can be solved as

a. test statistic = 1.164/0.13

t test = 8.95

b. the regression coefficient of shoe size is 1.164, this is statistically significant

c. Yes the variable shoe size does belong to the model.

d. The regression coefficient of gender shows that on the average, while holding other variables constant, males are 2.574 inches taller than the their female counterparts.

8 0
2 years ago
Can anyone help me with this please
son4ous [18]

Answer:

its 34

Step-by-step explanation:

46

7 0
2 years ago
Read 2 more answers
If Olivia has 68,79, and 74 for his 3 tests, what must he get on his 4th test in order to have an 80 average?
schepotkina [342]
The other person did not explain so I will:
(68+79+74)= 221/3 =73.7
80 x 4 = 320
320-221 = 99
He must get 99 on his 4th test.
Thanks
3 0
2 years ago
HELP ME PLEASE!!!!!!
amid [387]
They are congruent.
So, 4x - 26 = 3x + 4

x=30
3 0
2 years ago
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Let n represent the number of hours worked and f(n) represent the gross pay. Write an equation for f(n) in terms of n. Then, eva
Citrus2011 [14]
Use the formula for 10 to figure out the rest
3 0
3 years ago
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