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2 years ago

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Mathematics

1 answer:

Leto [7]2 years ago

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Is it supposed to be a attached picture to the question?

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Solve the following system of equations. {y=−2x−92x+3y=−3 Write your answer as an ordered pair in the form (x,y).

Over [174]

Answer:

(x, y) = (-6, 3)

Step-by-step explanation:

Maybe you want to solve ...

y = -2x -9
2x +3y = -3

Use the first equation to substitute for y in the second:

2x +3(-2x -9) = -3

2x -6x -27 = -3

-4x = 24 . . . . . . . . . add 27, simplify

x = -6 . . . . . . . . . . . divide by -4

y = -2(-6) -9 = 12 -9 = 3

The solution is (x, y) = (-6, 3).

6 0

3 years ago

How are 2-D and 3-D objects related to each other in real world

stich3 [128]

Answer:

You can see 2-D flat shapes on the faces of 3-D objects.

For example: You go to the store and you see a box,

the box has 6 faces. The bottom of the box is one of It's faces which is 2-D.

Step-by-step explanation:

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2 years ago

Ms. Fitzsimmons wanted to buy two of the same jackets in different colors online. The online store

zepelin [54]

Answer:

the cost of one jacket is $27.14

4 0

2 years ago

Read 2 more answers

N=4; 2i and 3i are zeros <br> f(-1)=50

Nonamiya [84]

Solution:- $\text{Let f(x) be any nth degree polynomial with n=4}\\$

$\text{Given that 2i and 3i are the zeroes of f(x)}$

$\text{so (x-2i) and (x-3i) are factors of f(x)}$

$\text{Since 2i is a zero of f(x) then its conjugate -2i is also a zero of f(x)}$

$\Rightarrow(x+2i) \text{is a factor}\\\text{Similarly, conjugate of 3i is -3i is also a zero of f(x) }\\\Rightarrow(x+3i)\text{is a factor}\\\text{So , }\\f(x)=k(x-2i)(x+2i)(x-3i)(x+3i)\\=k(x^2-(2i)^2)(x^2-(3i)^2)\\=k(x^2-4i^2)(x^2-9i^2)\\=k(x^2+4)(x^2+9)\\=k(x^4+13x^2+36)\\\text{As given}\\f(-1)=50\\\Rightarrow k((-1)^4+13(-1)^2+36)=50\\\Rightarrow k(1+13+36)=50\\\Rightarrow k(50)=50\\\Rightarrow k=1\\\text{So by substituting k=1 in f(x) we get ,}\\f(x)=(x^4+13x^2+36)$

6 0

3 years ago

Which of the following is the remainder when x^2 – 5x + 3 is divided by (x – 8)?

tester [92]

Answer:

not sure what ur trying to ask, but the simplified form of the equation is x + 6

Step-by-step explanation:

hope this helps some

7 0

2 years ago