2. Factorise completely the expression
2x² - 4x- 2xy+ 4y ​

Answer:

C. -9

Step-by-step explanation:

The pattern is clearly subtracting 4 each time (or adding -4).

-5 - 4 = -9

Answer:

Opcion C

Step-by-step explanation:

I think Maybe it could be

Answer:

[tex]x=1[/tex]

Step-by-step explanation:

Given equation in the question is,

[tex]\frac{2}{\text{log}_x(xy)}+\frac{2}{\text{log}_x(xy)}+3=5x[/tex]'

Since, [tex]\text{log}_a}(xy)=\frac{\text{log(a)}}{\text{log}(xy)}[/tex]

[tex]\frac{2\text{log}x}{\text{log}(xy)}+\frac{2\text{log}y}{\text{log}(xy)}+3=5x[/tex]

[tex]\frac{2(\text{log}x)+2(\text{log}y)}{\text{log}(xy)}=5x-3[/tex]

[tex]\frac{2[\text{log}(x)+\text{log}(y)]}{\text{log}(xy)}=5x-3[/tex]

[tex]\frac{2\text{log}(xy)}{\text{log}(xy)}=5x-3[/tex]

[tex]2=5x-3[/tex]

[tex]2+3=5x[/tex]

[tex]5x=5[/tex]

[tex]x=1[/tex]

Answer:

57 degrees

Step-by-step explanation:

A line is always 180 degrees so you just subtract 123 from 180 which is 57

Answer:

all whole numbers greater than 24

Step-by-step explanation:

Answer:

115.552 or 116 inches

Step-by-step explanation:

circumference of a circle formula which is C= 2piR. Where C is circumference and R is radius. So you get C=2(3.14×18.4)

Answer:

B (the one upper right)

Step-by-step explanation:

1. X is at most, something, so x is = or <

2. X is at most 500 more than twice y ---> (2y + 500)

3. X ≤ 2y +500

4. Profits will be over 22500, so 22500 is less (<) than profit

5. Square of profits are 35 times x and 50 times y

6. P^2 = 35x + 50y

7. P = Square-root of (35x + 50y)

8. 22500 < Square-root of (35x + 50y)

Answer is (3) and (8), which is B

$4 I got it right on a quiz

If the relation is given as p (h)= 14 + 3h. Then the price to rent a bike for 2 hours will be $20.

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

A company rents bikes.

The price (p) in dollars, to rent a bike for h hours can be found using the formula p (h)= 14 + 3h.

Then the price to rent a bike for 2 hours will be

p (h)= 14 + 3 x 2

p (h)= 14 + 6

p (h)= $20

More about the linear system link is given below.

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Answer:

3

Step-by-step explanation:

Answer:

94.08m

Step-by-step explanation:

Just multiplly each sides dimensions for all 6 sides.

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Answer:

A has greater volume.

Greater by [tex]43in^3[/tex]

Step-by-step explanation:

[tex]volume \ of \ can = \pi r^2 h[/tex]

[tex]r_A = 3 in, \ h_A = 6 in\\Volume_A = \pi \times 9 \times 6 = 169.65 = 170 in^3\\\\\\r_B = 2.25in , \ h_B = 8\\Volume_B = \pi \times 5.0625 \times 8 = 127.23 = 127in^3[/tex]

Answer: The area of the figure is 24 units.

Step-by-step explanation:

After plotting, the given points on the graph, we can observe that it is a parallelogram(opposite sides are equal and parallel)

Height = 4-1 = 3 units

Base = 2-(-6) = 8 units

Area of parallelogram = Base x height

= 8 x 3 square units.

= 24  square units.

Hence, the area of the figure is 24 units.

Answer:

Michael has 35 balloons.

Step-by-step explanation:

Write and solve an equation of ratios:

5       m

--- = -----

9     63

Cross-multiplication yields:

9m = 5(63), or

 m = 5(7) = 35

Michael has 35 balloons.

Answer:

the answer is 13/103

Step-by-step explanation:

Answer:

Hi, so first we must find the constant, 56/8=7

So each pack of sugar can be used for 7 cups of coffee. Therefore:

first column: 5 ; 35

second column: 8 ; 56

third column: 10 ; 70

fourth column: 11 ; 77

PLEASE MARK BRAINLIEST THANKS

Answer:

X=2 and y=5

Step-by-step explanation:

5=-4+9 True

5=8-3   True

Answer:

Since in this option the minute is paid at $ 0.40, the best option is 10 minutes for $ 4.

Step-by-step explanation:

Since four friends, Abe, Bob, Carl, and Darrel, are going to a fun park, and they want to ride go-karts, and the price to ride the go-karts is $ 2.15 for 5 minutes, $ 4.00 for 10 minutes, or $ 6.75 for 15 minutes, to determine which price is the best deal, the following calculations must be performed:

2.15 / 5 = 0.43

4/10 = 0.40

6.75 / 15 = 0.45

Therefore, since in this option the minute is paid at $ 0.40, the best option is 10 minutes for $ 4.

Answer:

1552.92

Step-by-step explanation:

Answer:

1552.92

Step-by-step explanation:

You can use this formula!!!

Answer:

A. The number of sit-ups is 5 more than twice the number of push-ups he does.

Step-by-step explanation:

Expressions:

p = push-ups done

2p + 5 situps = total situps

2p means that he does twice the amount of situps than he did as pushups.

+ 5 situps means that he does an extra 5 situps

Answer:

It is 24^21 without hesitation

Answer:

Quick 24^21 Go

Step-by-step explanation:

Answer:

2 pi or 6.2831853...

Step-by-step explanation:

C=pi 3r

The circumferance of the circle given is 2π units.

Area is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -

V = ∫∫F(x, y) dx dy

Given is a circle whose radius is equivalent to 1 units.

It is asked to find the circumferance of the circle given in the formula.

We know that the circumferance of the circle is given by the formula -

C = 2πr

Putting the values, we get -

C = 2 x π x 1

C = 2π units

So, it can be concluded that the circumferance of the circle given is 2π units.

Therefore, the circumferance of the circle given is 2π units.

To solve more questions on circle dimensions, visit the link-

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Answer:

Reduction

Step-by-step explanation:

The resulting shape M'S'V' is smaller than the original shape MSV, so it is therefore classified as a reduction.

Answer:

21.74 inches of fabrics

Step-by-step explanation:

Headbands = 542.43 inches of fabric

37 players + 4 coaches = 41 people

Each person uses = 542.43 inches of fabric / 41 people

= 13.23 inches of fabrics for headband per person

wristbands = 314.87 inches of fabric

Players = 37

Each person uses = 314.87 inches of fabric / 37 players

= 8.51 inches of fabrics for wristband per person

How much fabric was used on a headband and wristband for each player?

Fabrics used on a headband and wristband for each player = 13.23 inches of fabrics for headband per person + 8.51 inches of fabrics for wristband per person

= 13.23 inches+ 8.51 inches

= 21.74 inches

Fabrics used on a headband and wristband for each player = 21.74 inches of fabrics

While both arcs have the same degree measure (140 degrees), we don't have enough information about the radii. If the radius AO is the same length as radius OH, then the arcs are congruent. Otherwise, the arcs aren't congruent.

No, the arcs aren't congruent because the we don't know the size of both the circles, it is possible that one circle would be small and the other would have greater size than the first one, they only have same measure(140°) but not same size.

_______________

P.S- Refer the attachment, you will yourself understand what I'm trying to explain.

Answer:

The interval [25, 35] has the slowest average rate of decay.

Step-by-step explanation:

The number of grams in a sample of radium is represented by the function [tex]r(t) = 50\cdot e^{-0.013\cdot t}[/tex], which is a monotonous decreasing function. Hence, the greater the values of [tex]t[/tex], the slowest the average rate of decay, represented by a secant line. The interval [25, 35] has the slowest average rate of decay.

Answer:

x^3-4

Step-by-step explanation:

y = (x+4) ^ 1/3

Exchange x and y

x = (y+4)^1/3

Solve for y

Raise each side to the 3rd power

x^3 =  (y+4)^1/3 ^3

x^3 = y+4

Subtract 4 from each side

x^3 -4 = y+4-4

x^3 -4 = y

The inverse is

x^3-4