All categories

3 years ago

Can someone please help me!!!

Mathematics

1 answer:

zalisa [80]3 years ago

5 0

Number 12. Is -4ySquared+5y-9

You might be interested in

Please help! If your right you get brainliest

andreyandreev [35.5K]

Answer:

translation followed by a rotation

Step-by-step explanation:

7 0

2 years ago

2. Express the given statement as an algebraic expression. Sum ofa and 5 divided by 8

bezimeni [28]

Answer:

An algebraic expression for Sum of a and 5 divided by 8 is $\mathbf{\frac{a+5}{8}}$

Step-by-step explanation:

We need to express the given statement as an algebraic expression.

Sum of a and 5 divided by 8

Basically, we are given the expression in English sentence and we have to write algebraic expression.

It can be done in two steps:

Sum of a and 5 = We know that sum is denoted by + sign. So, we get (a+5)

Sum of a and 5 divided by 8 = $\frac{a+5}{8}$

So, An algebraic expression for Sum of a and 5 divided by 8 is $\mathbf{\frac{a+5}{8}}$

7 0

3 years ago

Find the complex fourth roots \[-\sqrt{3}+\iota \] in polar form.

____ [38]

Let $z=-\sqrt3+i$ . Then

$|z|=\sqrt{(-\sqrt3)^2+1^2}=2$

$z$ lies in the second quadrant, so

$\arg z=\pi+\tan^{-1}\left(-\dfrac1{\sqrt3}\right)=\dfrac{5\pi}6$

So we have

$z=2e^{i5\pi/6}$

and the fourth roots of $z$ are

$2^{1/4}e^{i(5\pi/6+k\pi)/4}$

where $k\in\{0,1,2,3\}$ . In particular, they are

$2^{1/4}e^{i(5\pi/6)/4}=2^{1/4}e^{i5\pi/24}$

$2^{1/4}e^{i(5\pi/6+2\pi)/4}=2^{1/4}e^{i17\pi/24}$

$2^{1/4}e^{i(5\pi/6+4\pi)/4}=2^{1/4}e^{i29\pi/24}$

$2^{1/4}e^{i(5\pi/6+6\pi)/4}=2^{1/4}e^{i41\pi/24}$

7 0

3 years ago

What are the zeros of f(x) = x2 + x - 20?

jeyben [28]

Answer:

x = - 5, x = 4

Step-by-step explanation:

Given

f(x) = x² + x - 20

To find the zeros equate f(x) to zero, that is

x² + x - 20 = 0

Consider the factors of the constant term ( - 20) which sum to give the coefficient of the x- term ( + 1)

The factors are + 5 and - 4, since

5 × - 4 = - 20 and + 5 - 4 = + 1, hence

(x + 5)x - 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 4 = 0 ⇒ x = 4

8 0

2 years ago

Read 2 more answers

Solve #2 pls I would appreciate and I will give brainliest answer as a reward

kirill [66]

Answer:

336

Step-by-step explanation:

Just get area of individual shapes and then add

7 0

3 years ago

Read 2 more answers