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3 years ago

7

two cylinders are similar. the surface area of one is 64cm2 and the surface area of the other one is 81cm2. find the scale facto

r between them.

1 answer:

Kitty [74]3 years ago

7 0

Answer:

this should help I guess pls tell me if it was wrong

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Anvisha [2.4K]

Answer:

Element A: 5

Element B: 3

Element C: 0

Step-by-step explanation:

Magnitude of -3 = 3.

Remove (-) to find magnitude.

Positive and zero value have same value for magnitude.

7 0

3 years ago

For your death 4fjojoj3iofji4ojfio4joi34fj4oi

Paladinen [302]

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4 0

2 years ago

Here are two expressions whose product is a new expression, :

Vera_Pavlovna [14]

Answer:

1. Fill in the box with 1

2. Fill in the box with -2

Step-by-step explanation:

Expression:

$(-2x^3 + [\ ]x)(x^{[\ ]}+1.5) = A$

Solving (1): Fill in the box to make it a polynomial.

To make it a polynomial, we simply fill in the box with a positive integer (say 1)

Fill in the box with 1

$(-2x^3 + [1]x)(x^{[1]}+1.5) = A$

Remove the square brackets

$(-2x^3 + x)(x^1+1.5) = A$

$(-2x^3 + x)(x+1.5) = A$

Open bracket

$-2x^4 - 3x^3 + x^2 + 1.5x = A$

Reorder

$A = -2x^4 - 3x^3 + x^2 + 1.5x$

The above expression is a polynomial.

This will work for any positive integer filled in the box

Solving (2): Fill in the box to make it not a polynomial.

The powers of a polynomial are greater than or equal to 0.

So, when the boxes are filled with a negative integer (say -2), the expression will cease to be a polynomial

Fill in the box with -2

$(-2x^3 + [-2]x)(x^{[-2]}+1.5) = A$

Remove the square brackets

$(-2x^3 - 2x)(x^{-2}+1.5) = A$

Reorder

$A = (-2x^3 - 2x)(x^{-2}+1.5)$

Open brackets

$A = -2x-3x^3-2x^{-1}-3x$

Collect Like Terms

$A = -3x^3-2x-3x-2x^{-1}$

$A = -3x^3-5x-2x^{-1}$

Notice that the least power of x is -1.

Hence, this is not a polynomial.

3 0

3 years ago

The Kaibab Trail at the Grand Canyon begins at 7,000 feet above sea level. If you descend on the trail 4,500 feet to the Colorad

lutik1710 [3]

Answer:

3875 feet above sea level

7 0

3 years ago

Read 2 more answers

Marlow types 90 words in 3 minutes. How many words does he type in 7 hours?<br>

Contact [7]

Answer:

if I am right it is 12,600 words

Step-by-step explanation: 90 divided by 3 which is 30 420x30=12,600

7 0

3 years ago