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2 years ago

Plsss i really need help.

Mathematics

1 answer:

Lerok [7]2 years ago

5 0

Answer:

im not sure but i think its correct (like 80-90%)(but probably not but u can use this method to find the correct answer)

Step-by-step explanation:

a) 25+40= 65 (x) 10= 650/2= 325

b) 325 (x) 50= 16,250cm

c) 325 (x) 2= 650

20 (x) 50= 1000

50 (x) 40= 2000

15 (x) 50= 750

25 (x) 50= 1250

then, just add eveything above should be 5,650cm^2

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Which equation represents the hyperbola in general form?

valina [46]

ANSWER

$9 {y}^{2} - 4 {x}^{2}- 36y + 16x - 16 = 0$

EXPLANATION

The standard equation of the hyperbola is

$\frac{ {(y - 2)}^{2} }{4} - \frac{ {(x - 2)}^{2} }{9} = 1$

We multiply through by 36 to obtain:

$9 {(y - 2)}^{2} - 4( {x - 2)}^{2} = 36$

We now expand to get,

$9( {y}^{2} - 4y + 4) - 4( {x}^{2} - 4x + 4) = 36$

Expand :

$9 {y}^{2} - 36y + 36 - 4 {x}^{2} + 16x - 16 = 36$

To get the general form, we equate everything to zero to get,

$9 {y}^{2} - 4 {x}^{2}- 36y + 16x - 16 = 0$

The correct choice is D.

7 0

3 years ago

Solve the following equation for x. 12x - 8 = 40 A. 4 B. 5 C. 6 D. 3

Anon25 [30]

Add 8 to both sides

12x = 40 + 8

Simplify 40 + 8 to 48

12x = 48

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x = 48/12

Simplify 48/12 to 4

x = 4

Answer: A. 4

7 0

2 years ago

Read 2 more answers

-2(x + 2) = -2x ++ 5x -1

earnstyle [38]

Answer:

-⅗ = x

Step-by-step explanation:

Here is what you get when you distribute the -2 on the left side of the equivalence symbol and combine like-terms on the right side of the equivalence symbol:

-2x - 4 = 3x - 1

Here is the solution:

-2x - 4 = 3x - 1

-3x -3x

----------------

-5x - 4 = -1

4 +4

----------------

-5x = 3

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-5 -5

x = -⅗

I am joyous to assist you anytime.

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3 years ago

Which statement is NOT true about Rational Numbers? *

serg [7]

Answer:

Integers, Whole Numbers, and Natural Numbers are Rational Numbers

Step-by-step explanation:

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2 years ago

The equation __ describes the relationship

vivado [14]

Answer:

y= 1/3x

Step-by-step explanation:

points on the graph

(0,0), (3,1)

function as per above two points:

y= 1/3x

5 0

3 years ago

Plsss i really need help.​

Plsss i really need help.