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Nataliya [291]
3 years ago
11

5k^3-8-4k^2+5k^2-2+3k^3

Mathematics
1 answer:
lara31 [8.8K]3 years ago
7 0
<h3>I'll teach you how to solve 5k^3-8-4k^2+5k^2-2+3k^3</h3>

-----------------------------------------------------------------------

5k^3-8-4k^2+5k^2-2+3k^3

Group like terms:

5k^3+3k^3-4k^2+5k^2-8-2

Add similar elements:

5k^3+3k^3+k^2-8-2

Add similar elements:

8k^3+k^2-8-2

Subtract the numbers:

8k^3+k^2-10

Your Answer Is 8k^3+k^2-10

Plz mark me as brainliest :)

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<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%3D%20%20%5Cfrac%7B144%7D%7B25%7D%20" id="TexFormula1" title=" {x}^{
ss7ja [257]

Answer:

x²=144/25

x=±12/5

Step-by-step explanation:

Hope it helps u

4 0
3 years ago
there are seven people and Luisa's family they have four loaves of cinnamon bread to share equally Luisa wants to know how much
makvit [3.9K]

Answer:

\frac{4}{7} of a loave of bread per person

Step-by-step explanation:

<u>Step 1:  Convert words to expressions </u>

Seven people in Luisa's Family = <em>7 people </em>

Four loaves of cinnamon bread = <em>4 loaves </em>

<u>Step 2:  Divide people from loaves </u>

4 loaves / 7 people  <-  This means they are splitting 4 loaves of bread between 7 people

\frac{4}{7} of a loave of bread per person

Answer:  \frac{4}{7} of a loave of bread per person

7 0
3 years ago
Please help! photo is attached, will give brainliest.
Naddik [55]

Answer:84

Step-by-step explanation:

Okay. Are you taking calc? Dv/dt =d/dt(L(t)^3)=d/dt[(sqrt(14)+2t)^3]= 6(Sqrt(14)+2t)^2)=44. We defined t=0 to be time at which length is sqrt(14). Does that work?

8 0
2 years ago
The ratio of boys and girls in Mrs specks s class is 2 of 3 There is 18 girls what is the total number of students in Mrs.specks
My name is Ann [436]

Answer: 30 students in total

Step-by-step explanation: 2x+ 3x is 5x right. The 18 girls are the 3x. That means the 6 people is 1x. If there are 5 x people in total that means that there are 30 students

7 0
3 years ago
From a point on level ground 5280 feet from the base of the tower, the angle of elevation is 27.1 . Approximate the height of th
AleksandrR [38]

Answer:

The height of the tower=2,702 feet

Step-by-step explanation:

The angle of elevation is the angle between the horizontal level ground and the hypotenuse. Since we have the horizontal distance, we can use this to estimate the vertical height from the base of the tower using the expression below;

Tan∅=h/b

where;

∅=the angle of elevation

h=vertical height of the tower

b=the distance from the base of the tower to the point on level ground

In our case;

∅=27.1°

h=unknown

b=5280 feet

replacing;

Tan 27.1=h/5280

h=5,280×Tan 27.1

h=2,701.91 feet

2,701.91 to the nearest foot=2,702 feet

The height of the tower=2,702 feet

4 0
3 years ago
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