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Ilia_Sergeevich [38]

2 years ago

12

Bianca uses an overhead projector to explain a new concept to her students. The width of the projected image was 24 feet. The wi

dth of the original image was 120 inches . Find the scale factor used to enlarge the image .

1 answer:

AnnZ [28]2 years ago

3 0

Answer: 10% of 65.9

Step-by-step explanation:

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Which equation shows y= −1/2x + 4 in standard form?

VladimirAG [237]

Y = -(1/2)x + 4

y + (1/2)x =4

(1/2)x + y = 4

Multiply both sides by 2

2*(1/2)x + 2*y = 2*4

x + 2y = 8

Option B.

5 0

2 years ago

A 64-foot tall monument casts a shadow 16 feet long. If Kyle is stsnding nearby and is 6'3 tall, find the length of his shadow.

Helen [10]

Answer: Length of his shadow is 18 feet.

Step-by-step explanation:

Since we have given that

Length of tall monument = 64 foot

Length of shadow = 16 feet

Length of pole where Kyle is standing = 6 feet 3 inch = 72 inches

So, we need to find the length of its shadow.

So, according to question, we get that

$\dfrac{64\times 12}{16\times 12}=\dfrac{72}{x}\\\\4=\dfrac{72}{x}\\\\4x=72\\\\x=\dfrac{72}{4}\\\\x=18\ feet$

Hence, length of his shadow is 18 feet.

3 0

2 years ago

Given the functions, f ( x ) = x - 8 and g ( x ) = x2 x - 1, perform the indicated operation. when applicable, state the domain

kondor19780726 [428]

(fg)(x)= x³ - 7x² - 9x + 8

domain is (-∞,∞)

Given: f(x)= x-8, g(x)= x² +1x - 1

To find (fg)(x) we multiply f(x) and g(x)

(fg)(x) = f(x) * g(x)

(fg)(x)= (x-8) (x²+x-1)

(fg)(x)= x³ + x² - x - 8x² - 8x +8

(fg)(x)= x³ - 7x² - 9x + 8

we know, domain for all cubic function is set of all real numbers

domain is (-∞,∞)

Know more about "functions" here: brainly.com/question/12431044

#SPJ4

6 0

9 months ago

A freight train is half a mile long. It approaches a tunnel traveling 60mi/hr. If the tunnel is 1 mile long, how long will it ta

MrRa [10]

Answer:60

Step-by-step explanation:I seen the answer on bill bye the math guy

6 0

2 years ago

Read 2 more answers

What is the answer to this?

Dmitry [639]

Answer:

(c) III

Step-by-step explanation:

If you simplify the equations and the left side is identical to the right side, then there are an infinite number of solutions: the equation is true for all values of x.

Another way to simplify the equation is to subtract the right side from both sides. If that simplifies to 0 = 0, then there are an infinite number of solutions.

__

<h3>I. </h3>

2x -6 -6x = 2 -4x . . . . eliminate parentheses

-4x -6 = -4x +2 . . . . no solutions (no value of x makes this true)

__

<h3>II.</h3>

x +2 = 15x +10 +2x . . . . eliminate parentheses

x +2 = 17x +10 . . . . one solution (x=-1/2)

__

<h3>III.</h3>

4 +6x = 6x +4 . . . . eliminate parentheses

6x +4 = 6x +4 . . . . infinite solutions

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<h3>IV.</h3>

6x +24 = 2x -4 . . . . eliminate parentheses; one solution (x=-7)

8 0

1 year ago