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guajiro [1.7K]
2 years ago
14

A quiz has 4 questions. The first is true/false, the second has 4 choices, and the res

Mathematics
1 answer:
weeeeeb [17]2 years ago
3 0
<h3>Answer:  0.0078</h3>

Work Shown:

A = 1 way to get all questions correct

B = 2*4*4*4 = 128 ways to answer the questions

A/B = 1/128 = 0.0078125 which rounds to 0.0078

There's roughly a 0.78% chance of getting all correct answers if you randomly guess on all four questions.

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Which function in vertex form is equivalent to f(x) = x2 + x +1?
Alexxandr [17]

Answer:

C

Step-by-step explanation:

Given

f(x) = x² + x + 1

To express in vertex form use the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² + x

x² + 2(\frac{1}{2})x + \frac{1}{4} - \frac{1}{4} + 1

= (x + \frac{1}{2})² + \frac{3}{4} → C

3 0
3 years ago
Read 2 more answers
A researcher groups college students in a study based on their year in college (freshman, sophomore, junior, senior) and the typ
UkoKoshka [18]

Answer:

d. all of the above                

Step-by-step explanation:            

A two-way ANOVA generally compares the "mean differences" between different groups that are being split into two distinct independent variables which are also referred to as factors. The main aim of a two-way ANOVA is to comprehend if there is any interaction that exists between these two "independent variables" to that of the "dependent variable".

A simple main effect test is described as a phenomenon in which the effect of one specific 'independent variable' that possess within one level related to a second or the other 'independent variable'. It utilizes the "df" and the "error term" from the 'whole design'.

The post-hoc test is described as a test that generally analyzes the results of experimental data.

3 0
4 years ago
G<br> If f(x) = 6x – 4, what is f(x) when x = 8?
I am Lyosha [343]

Answer: f(x)=44

Step-by-step explanation:

Since x is given, we can directly plug it into our function.

f(8)=6(8)-4

f(8)=48-4

f(8)=44

8 0
3 years ago
Jake bought 14.5 pounds of dried navy beans for $25.52.
dsp73

Answer:40.00

Step-by-step explanation:just add

5 0
3 years ago
What’s the answer?<br><br> x² =<br><br> 12<br> 16<br> 48
Marina86 [1]
I think 16 is the answer
7 0
3 years ago
Read 2 more answers
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