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3 years ago

8

Help. and please show workout so I can know how to understand it (and both questions)

1 answer:

Arlecino [84]3 years ago

8 0

Just remove the parenthesis since you are adding them and combine like terms
x+5+2x+3
3x+8

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Given f(x)=3x^2+5 and g(x)=x−2 . What is (fg)(x) ? 3x^2−x+7 3x^3−6x2+5x−10 −3x^2+x−7 3x^3−10

wolverine [178]

For this case we have that by definition:

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

So:

$(fg) (x) = (3x ^ 2 + 5) (x-2)$

We apply distributive property that states that:

$(a + b) (c + d) = ac + ad + bc + bd$

In addition, we take into account that:

$+ * - = -$

$(fg) (x) = 3x ^ 3-6x ^ 2 + 5x-10$

Answer:

$3x ^ 3-6x ^ 2 + 5x-10$

Option B

6 0

2 years ago

Read 2 more answers

your family went out to dinner to celebrate your grandmas 100th birthday. The total for the dinner was $208.60, so your parents

Allushta [10]

Answer:

$\%Tip = 13.04\%$

Step-by-step explanation:

Given

$Tip= \$31.29$

$Bill = \$208.60$

Required

Determine the percentage of the tip

First, we calculate the amount paid

$Amount = Tip + Bill$

$Amount = \$31.29 + \$208.60$

$Amount = \$239.89$

The percentage of the tip is then calculated using:

$\%Tip = \frac{Tip}{Amount} * 100\%$

$\%Tip = \frac{31.29}{239.89} * 100\%$

$\%Tip = \frac{31.29* 100}{239.89} \%$

$\%Tip = \frac{3129}{239.89} \%$

$\%Tip = 13.04\%$

8 0

2 years ago

Sidana [21]

First find the amount of containers:
6.3 kg/0.35 kg
=18 containers

Now we can find the amount of money earned:
18 containersx$2.99
=$53.82

Bella will earn $53.82 if she sells all the containers.

6 0

2 years ago

Read 2 more answers

Ima need help on this one pls do quick

pshichka [43]

Answer:

65

Step-by-step explanation:

The area of the square is $5^2=25$ and the area of a single triangle is $\frac{1}{2}(5)(4)=10$ .

The total area is the square plus the 4 triangles $25+4(10)=65$

4 0

1 year ago

What's the pattern of 160,80,40,20,10

Brrunno [24]

The pattern is that each number is decreasing by half

3 0

3 years ago

Read 2 more answers