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3 years ago

45=___% of 120 A.80% B.9% c. 37.5

1 answer:

8 0

If you plug in each answer, you would get 37.5 as the correct answer. all you do is multiply 37.5% and 120. That will equal 45.

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Liam wants to buy a car. He has $100. The car that he wants costs $120,000. His parents is willing to give him $1,300. How long

mario62 [17]

Suspecting that his parents are going to give him $1,300 continually you would solve like this

$120,000-$100= $19,900
$19,900/$1,300= 92.23
92.23 is the amount of $1,300 donations it would take from his parents, so if he was getting $1,300 month it would take 92.23 months

5 0

3 years ago

Factor the expression completely over the complex numbers.

nekit [7.7K]

Answer:

The factor form of given expression is (x-4)(x-2i)(x+2i).

Step-by-step explanation:

The given expression is

$x^3-4x^2+4x-16$

It can be written as

$f(x)=x^3-4x^2+4x-16$

According to the rational root theorem, all possible rational roots are in the form of

$\frac{a_0}{a_n}$

Where, a₀ is constant term and $a_n$ is leading coefficient.

$f(4)=4^3-4(4)^2+4(4)-16=0$

Since the value of f(x) is 0 at x=4, therefore 4 is a root of the function and (x-4) is a factor of given expression.

Use synthetic method to find the remaining factors.

$(x^3-4x^2+4x-16)=(x-4)(x^2+4)$

$(x^3-4x^2+4x-16)=(x-4)(x^2-(2i)^2)$

$(x^3-4x^2+4x-16)=(x-4)(x-2i)(x+2i)$

Therefore the factor form of given expression is (x-4)(x-2i)(x+2i).

8 0

4 years ago

Read 2 more answers

What is the perimeter of this figure

fredd [130]

Answer:

perimeter is the sum of all sides

sum of all sides here is 5+5+11+7 = 28m

8 0

3 years ago

The coordinates below are the three vertices of a rectangle. Identify the fourth coordinate and the area of the rectangle. A coo

horrorfan [7]

(2, 2)
Points B and C are symmetric (Divided by the y axis) so that means we have to find the mirrored version of A that is divided by thee y axis which is (2, 2)

6 0

4 years ago

Read 2 more answers

John spent $19.00 at the tuck shop. He bought 2 chocolate bars and 3 packets of

laila [671]

Answer:

It will cost Jane $21.00

Step-by-step explanation:

As, cost of 1 chocolate = x

The cost of 1 packet of chips = $3 + x

So no. Of 2 chocolate bars = x + x = 2x

And no. Of packet of chips = ($3+x) + ($3+x) + ($3+x) = 3(3+x) = 9+3x

So now = cost Of chocolate + cost of chips = $19

So = 2x + 9+3x = 9 + 5x

So 9 + 5x = $19

So 5x = $19 - 9 = $10

So 5x =10

x = 10/5

x = 2

So cost of 2 chocolate = 2x = 2($2) = $4

And 3 chip packet = 9+3x = 9+3($2) = 9+6 =$15

So now total = $4 + $15 = $19

Now for John = 2 chocolates and 3 packets of chips = $19

Now for Jane she has 3 chocolates and 3 packets of chips, so she has one more chocolate amd now we know that 1 chocolate = $2

So we will just add one more chocolate

So Jane will pay = $ 19 + $2 = $21

So it will cost Jane = $21:00

8 0

3 years ago