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3 years ago

(8x^2 + 3) + (4x^2 + 5x + 4) i need this combined

Mathematics

2 answers:

Mama L [17]3 years ago

7 0

Answer: 12x^2 +5x + 7

Step-by-step explanation:

You just need to combine like terms. you can combine 8x^2 and 4x^2 since they both have the same x^2 value. There is nothing to combine 5x with, so it remains 5x. Finally, you add the two integers, 4 and 3. This gives you the final answer, which is a quadratic equation.

kati45 [8]3 years ago

5 0

Answer:

12x^2+5x+7

Step-by-step explanation:

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A saleswoman earns 60% commission on all that she sells. Last month she sold $800 worth of merchandise. How much commission (In

Softa [21]

Answer:

$480

Step-by-step explanation:

From the above question, we are told that:

A saleswoman earns 60% commission on all that she sells. Last month she sold $800 worth of merchandise.

The amount of commission (In dollars) she earned last month is calculated as:

60% of $800

= 60/100 × $800

= $480

Therefore, the amount of commission shoe earned last month in dollars = $480

3 0

3 years ago

What is a coterminal angle for 130 degrees that’s in between 0 and 360 degrees.

Ymorist [56]

Answer:

it's already a coterminal angle. the goal is too get the degree into that range of 0-360.

For example, the degree 450 would be 90.

450-360 = 90

So, 130 is your answer

8 0

4 years ago

What is the value of x? <br> A) 12 <br> B) 39<br> C) 45<br> D) 33

ICE Princess25 [194]

x^2 = 15^2 + 36^2

X^2 = 225 + 1296

X^2 = 1521

x = sqrt(1521)

x =39

3 0

4 years ago

Read 2 more answers

Which expression is equivalent to -36 – 8? Choose 1 answer: А -36 + (-8) B -8 + 36 8 - 36 D 36 + 8

Leviafan [203]

Answer:

b is the answer

Step-by-step explanation:

5 0

3 years ago

Help please, i will love you forever

Natali [406]

Answer:

See Below

Step-by-step explanation:

I'm not going to do the homework for you, but I will complete three of the problems to help you understand the process.

We are converting between different units of measurement.

Here are the conversions to know:

12 inches = 1 foot

3 feet = 1 yard

1760 yard = 1 mile

5280 feet = 1 mile

We need to convert 7 feet into inches.

7 feet * 12 inches per foot = 84 inches

Now we know:

84 inches = 7 feet

What's the difference is between 84 inches, and 18 inches?

84 inches - 18 inches = 66 inches

We need 66 more inches to get a length of 7 feet.

We need to convert 2 miles into yards.

2 miles * 1760 yards per mile = 3520 yards.

Now we know:

3520 yards = 2 miles

What's the difference between 3520 yards and 2000 yards?

3520 yards - 2000 yards = 1520 yards

We need 1520 more yards to make 2 miles

We need to convert 108 inches into feet.

108 inches / 12 inches per foot = 9 feet

Since there is no remainder,

9 feet = 108 inches.

Hopefully you can see what is going on here and do the rest yourself.

4 0

3 years ago