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3 years ago

X=a-2by^2 Make “y” as a subject

Mathematics

1 answer:

Alex Ar [27]3 years ago

3 0

Answer:

Let’s assume a,b,x real. Then all we require of y is y2 is real, so y

can be real or purely imaginary, but not an arbitrary complex number.

The hard question in these is always, do we need ±

? Here the answer is yes. It’s basically asking is there one solution or two, and in this problem we have two.

Solve for y

: x=a−2by2

Step-by-step explanation:

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Please help please help please help please help please help please help look at the thingy pls help

attashe74 [19]

Answer:

The slopes of line segments AC and AD are same or constant i.e $\frac{1}{3}$

Step-by-step explanation:

We need to find slopes of AC and AD and tell if they are same or not.

The formula used to calculate slope is: $Slope=\frac{y_2-y_1}{x_2-x_1}$

Finding slope of AC

We have A=(3,2) and C=(0,1)

Finding slope using formula:

We have $x_1=3, y_1=2, x_2=0,y_2=1$

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{1-2}{0-3}\\Slope=\frac{-1}{-3}\\Slope=\frac{1}{3}$

So, Slope of AC is $\frac{1}{3}$

Finding slope of AD

We have A=(3,2) and C=(9,4)

Finding slope using formula:

We have $x_1=3, y_1=2, x_2=9,y_2=4$

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{4-2}{9-3}\\Slope=\frac{2}{6}\\Slope=\frac{1}{3}$

So, Slope of AD is $\frac{1}{3}$

So, the slopes of line segments AC and AD are same or constant i.e $\frac{1}{3}$

3 0

2 years ago

Simplify 5(х+3) – 9х+4<br> A. 14x7<br> B. -4x+7<br> C. -4x+19<br> D. 14x+19

goldfiish [28.3K]

Answer:

Step-by-step explanation:

start with factoring.

5x+15-9x+4

then solve

-4x+19

4 0

2 years ago

Read 2 more answers

Is 0.48 equal to 6/15

Yuliya22 [10]

No is not because 6/15 is 0.4

4 0

2 years ago

Read 2 more answers

Charlie makes 9 dollars for each week of work. Write an equation to represent his total pay p after working h hours

sertanlavr [38]

Answer:

p = 9h

Step-by-step explanation:

:-)

3 0

2 years ago

A sample of 16 items from population 1 has a sample variance 5.8 and a sample of 21 items from population 2 has a sample varianc

Nady [450]

Answer:

Reject the null hypothesis.

Step-by-step explanation:

n1 = 16

n2 = 21

S.V1 = 5.8

S.V2 = 2.4

$\alpha$ = 0.05

$H_{0}$ = Population Variance 1 ≤ Population Variance 2

$H_{a}$ = Population Variance 1 > Population Variance 2

Test statistic value = 5.8 / 2.4 = 2.417

Degrees of freedom is n - 1

15 and 20

Critical value is $F_{0.05}$ = 2.2

2.417 > 2.2

we reject the null hypothesis as the critical value is greater than the test statistic.

3 0

3 years ago