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katrin [286]
2 years ago
14

Evaluate the expression

Mathematics
1 answer:
kap26 [50]2 years ago
7 0

Answer:

Multiply

−1 by  83

=−83

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F(x)=-x^2-4x-6<br> Axis of symmetry and vertex
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The axis of symmetry is x= - 2
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3 years ago
Unit rates... please help
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3 years ago
Excel computes a two‑sample confidence interval for the difference in proportions just as well and as easily as Minitab and othe
True [87]

Answer:

See ecplanation below

Step-by-step explanation:

False.

On the Data analysis tool from excel we can conduct the following procedures:

Anova: Single Factor

Anova: Two factor with replication

Anova: Two factor without replication

Correlation

Covariance

Descriptive statistics

Exponential smoothing

F-test Two sample for Variances

Fourier analysis

Histogram

Moving Average

Random number generation

Rank and percentile

Regression

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t tes: Two sample assuming equal variances

t test: Two sample Assuming Unequal Variances

z test: Two sample for means

And as we can see we don't have an specific procedure just to obtain confidence interval for the difference of proportions. We need to remember that if we select a z test in excel, for example the output will contain the confidence associated to the parameter, but for this case is not too easy obtain a confidence interval for the difference of proportion like on a statistical software as (Minitab, R, SAS, etc) since all of these statistical softwares are elaborated in order to conduct all the possible statistical tests and confidence intervals for parameters of interest.

5 0
3 years ago
A game field is 360 feet long. The practice field is 2/5 shorter than the practice field. How long is the game field?feet
vlabodo [156]

Answer:

The practice field is 144 feet long.

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360 x 2/5 = 144

(You would multiply these numbers NOT divide!)

To check my math:

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By doing the above check, I know the two equations are the same. By seeing this I can know that the answer is correct.

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2 years ago
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Alenkinab [10]

Answer:

y=-4x-6

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Slope is given as -4, so:

y=-4x+b

To find b, sub in the point we were given (-2,2):

2=-4(-2)+b

2=8+b

b=2-8=-6

So we have: y=-4x-6

7 0
2 years ago
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