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3 years ago

(Factoring by Graphing) How do u solve this

Mathematics

1 answer:

Elanso [62]3 years ago

4 0

Graph the equation. There are multiple ways to do this.

You can create a table of values, use the quadratic formula, convert from standard to vertex form.

If you're trying to factor, you'll eventually notice this thing cannot be factored (no roots!). If you use the quadratic formula, you will get an imaginary answer (no roots!)

If you go in the route of picking points and coming up with a table of values you'll get a graph like this (see attachment) Notice there are no roots! because the graph never ever hits the x-axis

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Anyone know how to do this

blsea [12.9K]

Answer:

A B C D E MIGHT BE UR ANSWER

7 0

3 years ago

The null hypothesis for an ANOVA is that all treatments/samples come from populations with the same mean. The alternative hypoth

Charra [1.4K]

Answer:

At least one of the population means is different from the others.

Step-by-step explanation:

ANOVA is a short term or an acronym for analysis of variance which was developed by the notable statistician Ronald Fisher. The analysis of variance (ANOVA) is typically a collection of statistical models with their respective estimation procedures used for the analysis of the difference between the group of means found in a sample. Simply stated, ANOVA helps to ensure we have a balanced data by splitting the observed variability of a data set into random and systematic factors.

In Statistics, the random factors doesn't have any significant impact on the data set but the systematic factors does have an influence.

Basically, the analysis of variance (ANOVA) procedure is typically used as a statistical tool to determine whether or not the mean of two or more populations are equal through the use of null hypothesis or a F-test.

Hence, the null hypothesis for an ANOVA is that all treatments or samples come from populations with the same mean. The alternative hypothesis is best stated as at least one of the population means is different from the others.

5 0

3 years ago

What is it’s measure and what kind of angle is formed here? Basically what the question asks dhdjdkdk

777dan777 [17]

right

Answer:

90°

Step-by-step explanation:

Type of angle foremd= right

Measure = 40° + 50° = 90°

Type of angle foremd= right

Measure = 40° + 50° = 90°

4 0

3 years ago

Please answer! this is an important exam that im taking right now.

Scorpion4ik [409]

Answer:

Required ordered pair is (0,0) for system of equation

Step-by-step explanation:

The given system of equation is

A). $9^{12x} = 9^{3y}$

B). $y^{4} - 9y^{2} x^{2} =16y$

On simplifying the equation A

$9^{12x} = 9^{3y}$

Take log on both side,

(12x) (log9) = (3y) (log9)

4x=y

To find the solution of the system of the equation :

Replacing value of y=4x in equation B,

$y^{4} - 9y^{2} x^{2} =16y$

$(4x)^{4} - 9(4x)^{2} x^{2} =16(4x)$

$256x^{4} - 144x^{2} x^{2} =64x$

$256x^{4} - 144x^{4}=64x$

$112x^{4}=64x$

We get,

x=0 and x=0.829

Since, 0.829 is not integer number

Only solution of equations is x=0

For the value of y

Replace value x in y=4x=0

Thus, Required ordered pair is (0,0)

8 0

3 years ago

In 2012, the population of a city was 6.29 million. The exponential growth rate was

RoseWind [281]

9514 1404 393

Answer:

a) P(t) = 6.29e^(0.0241t)

b) P(6) ≈ 7.3 million

c) 10 years

d) 28.8 years

Step-by-step explanation:

a) You have written the equation.

P(t) = 6.29·e^(0.0241·t)

b) 2018 is 6 years after 2012.

P(6) = 6.29·e^(0.0241·6) ≈ 7.2686 ≈ 7.3 . . . million

c) We want t for ...

8 = 6.29·e^(0.0241t)

ln(8/6.29) = 0.0241t

t = ln(8/6.29)/0.0241 ≈ 9.978 ≈ 10.0 . . . years

d) Along the same lines as the calculation in part (c), doubling time is ...

t = ln(2)/0.0241 ≈ 28.7613 ≈ 28.8 . . . years

4 0

3 years ago