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3 years ago

Which of the following best defines similar images?

Mathematics

1 answer:

never [62]3 years ago

5 0

Actually, you didn't put any photo.... then how can I answer.. pls put photo... and I will say answer...

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7. Meghraj divided like this. 1.05 2.1 → 105 210 Do you agree with what he did? Explain your thinking.

Anarel [89]

Step-by-step explanation:

I guess that means

1.05 / 2.1

1.05 ÷ 2.1

both mean the same thing.

so, let's look at

1.05 / 2.1

this is the same as

105/100 / 210/100 = (105×100) / (210×100) =

= (105×100) / (210×100) × (1/100 / 1/100)

as long as we multiply numerator (top) and denominator (bottom) always with the same thing, the general fraction or division is unchanged.

(105×100) / (210×100) × (1/100 / 1/100) =

= (105 × 100/100) / (210 × 100/100) = 105 / 210

so, yes, the division of 105 / 210 is the same as 1.05 / 2.1

5 0

2 years ago

What are the Slope and Equation of the graph?

gladu [14]

Answer:

Slope=2

Equation of the Graph is y=2x-6

3 0

3 years ago

A fence is to be built to enclose a rectangular area of 800 square feet. The fence along three sides is to be made of material t

myrzilka [38]

Answer:

dc/dx = 0 when x = 20. hence fence is 20×40

Step-by-step explanation:

Given data:

Rectangular Area = 800 ft^2

three side material cost = $5 per ft

fourth side material cost is $15 per ft

let expensive side is x and other dimension assume to be y

Then cost is c

c = 5(x+ 2y) + 15 x

xy = 800, so y = 800/x

c =5(x+ 1600/x^2) + 15x

for minimum when dc/dx = 0

$\frac{dc}{dx} = 5(1-\frac{1600}{x^2}) + 15 = 0$

$5(1-\frac{1600}{x^2}) + 15 = 0$

$(1-\frac{1600}{x^2}) + 3 = 0$

$(1-\frac{1600}{x^2}) = - 3$

$x^2 - 1600 = -3x^2$

$4x^2 - 1600 = 0$

(2x-40)(2x+40) = 0

x = 20

dc/dx = 0 when x = 20. hence fence is 20×40

3 0

4 years ago

What is the slope of the line graphed below ? (1,1) (3,2)

kirill115 [55]

Answer:

$m = \frac{1}{2}$

Step-by-step explanation:

$\frac{y2 - y1}{x2 - x1}$

$\frac{2-1}{3-1}$

$2-1 = 1\\ 3-1=2$

$m = \frac{1}{2}$

8 0

3 years ago

Read 2 more answers

Graph the image of S (7, 8) after a reflection over the x-axis

tatiyna

9514 1404 393

Answer:

see below

Step-by-step explanation:

Reflection over the x-axis changes the sign of the y-coordinate. Points that were above the axis are reflected to be the same distance below the axis.

5 0

3 years ago