How do you convert 7/20 to a percent

Answers

Answer 1

Answer: $(7)/(20) = (7*5)/(20*5) = (35)/(100) = 35$ %

Answer 2

Answer: 7/20= 0.35
0.35×100= 35%

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What is 4(8c+4) using the distributive property?

Answers

Answer:

32c +16

Step-by-step explanation:

4(8c+4)

Multiply 4 to the terms inside the parentheses

4*8c +4*4

32c +16

The answer is 32c + 16

Which phrase describes an unknown or changeable quantity?A. 3 feet 7 inches
O
O
B. 4 quarts in a gallon
O
C. The height of the building times
O
D. 2 o'clock in the afternoon

Answers

Answer:

the height of building times 1/2

Step-by-step explanation:

apex

Amelia wants to paint three walls in her family room. Two walls are 26 feet long by 9 feet wide. The other wall is 18 feet long by 9 feet wide each gallon of paint covers about 250 square feet.How many gallons of paint should amelia buy to paint the walls

Answers

Given:
Wall 1 & 2 : 26 ft by 9 ft
Wall 3 : 18 ft by 9 ft

Area 1 : 26 ft x 9 ft = 234 ft²
Area 2 : 26 ft x 9 ft = 234 ft²
Area 3 : 18 ft x 9 ft = 162 ft²

Total Area : 234 ft² + 234 ft² + 162 ft² = 630 ft²

1 Gallon = 250 ft²

630 ft² ÷ 250 ft² per gallon = 2.52 gallons

determine the number of rational and irrational zeros of the function: f(x) = x^5-3x^4-2x^3+6x^2-3x+9

Answers

$x^5 - 3x^4 - 2x^3 + 6x^2 - 3x + 9 = 0$

Fifth degree polynomial; scary stuff. We know it has five complex roots, counting multiplicities. How many are real?

The rational root test tells us we only have to try the divisors of 9, so 1, -1, 3, -3, 9, -9. We find x=3 gives

243 - 243 - 54 + 54 - 9 + 9 = 0

in nice pairs.

So x-3 is a factor and we can divide to get a 4th degree polynomial. The division is a bit easier than usual.

x^4 - 2x^2 - 3

x - 3 | x^5 - 3x^4 - 2x^3 + 6x^2 - 3x + 9

x^5 - 3x^4

0 - 2x^3 + 6x^2

0 - 3x + 9

So we get

$(x-3)(x^4 - 2x^2 - 3) = 0$

It's downhill from here. The new factor is really just a quadratic in x squared, and factors easily:

$(x-3)(x^2 - 3)(x^2 + 1) = 0$

And now if we descend into irrational and complex numbers, we can further factor

$(x-3)(x - \sqrt 3)(x+ √(3))(x-i)(x+i) = 0$

and we can read off our roots,

$x= 3, √(3), -√(3), i, -i$

We have one rational root, namely 3, and two irrational roots, the square roots of three, and two purely imaginary roots.

Answer: 1 rational, 2 irrational

Answer:

One rational and 2 irrational zeroes

Step-by-step explanation:

I agree with the other guy.

f(3) = 0 so x = 3 is a rational root.

There also are 2 irrational roots and 2 complex roots.

Can someone help me please and thanks oh and it 3 and 6

Answers

The answer for number 3 is 96.7 if you want the work shown I would recommend you to download the app Socratic and for number six you multiply.75x14 then also multiply.35x7 then add add up the answers which will be 12.95 then you subtract that from 15 the answer is $2.05

When measuring distance 12 beads are approximately equal to 6 erasers. how many erasers are equal to 18 beads? How many beads are equal to 42 erasers?

Answers

Well, since 12 divided by 6 would equal 2. So 9 erasers would equal to 18 beads (18 ÷ 2). 21 beads equal 42 erasers.

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