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GrogVix [38]
3 years ago
9

What is the sum of the polynomials? (6x+7x+x^2)+(2x^2-3x)

Mathematics
1 answer:
Trava [24]3 years ago
4 0

Answer:

3x^2 + 10x

Step-by-step explanation:

You might be interested in
Joshua walked 14 feet down the hall of his house to get the door he continued in a straight line out the door and across the yar
AleksandrR [38]

Answer:

Joshua walked 48 feet in total.

Step-by-step explanation:

To find the total distance we need to sum every distance that he walked. We have:

- First: Joshua walked down the hall to the door = 14 feet

- Second: He continued in a straight line out the door and across the yard to the mailbox = 24 feet

- Third: He came straight back across the yard and stopped to pet his dog = 10 feet

Hence, the total distance is:

d_{T} = d_{1} + d_{2} + d_{3} = 14 ft + 24 ft + 10 ft = 48 ft

Therefore, Joshua walked 48 feet in total.

I hope it helps you!

8 0
3 years ago
8 < 4(x+1) show your work
kati45 [8]
8 < 4 (x + 1)   Use the Distributive Property
8 < 4x + 4       Subtract 4 from both sides
4 < 4x             Divide both sides by 4
1 < x
5 0
3 years ago
The lowest elevation in Lammefjord, Denmark, is 23 feet below sea level. The elevation of the Sea of Galilee in Israel is about
tatyana61 [14]

Answer:

Sea\ of\ Galilee = -690ft

Step-by-step explanation:

Given

Lowest\ Elevation = 23ft below sea level

Sea of Galilee = 30 times Lowest in Lammefjord, Denmark

Required

Determine the elevation of the Sea of Galilee

We have that the lowest elevation in Lammefjord is:

Lowest\ Elevation = -23ft

It is negative because, the elevation is below sea level.

Calculating the elevation of Sea of Galilee, we have:

Sea of Galilee = 30 times Lowest in Lammefjord, Denmark

Sea\ of\ Galilee = 30 * -23ft

Sea\ of\ Galilee = -690ft

<em>Hence, the elevation of Sea of Galilee is -690ft or 690ft below sea level</em>

5 0
3 years ago
What number solves the equation x + 7.4 =11.2
Sunny_sXe [5.5K]

The value of x is 3.8

<em><u>Solution:</u></em>

<em><u>Given equation is:</u></em>

x + 7.4 = 11.2

We have to solve the equation for "x"

Move the terms so that you end up with only terms involving x on one side of the sign and all the numbers on the other

Therefore, we get

x + 7.4 = 11.2

When we move 7.4 from left side to right side of equation it becomes -7.4

x = 11.2 - 7.4

Subtract 7.4 from 11.2

x = 3.8

Thus value of x is 3.8

3 0
3 years ago
The diameter of a wheel of a car is 0.75 m. if the car travels at an average speed of 14 m/s, find the
raketka [301]

Step-by-step explanation:

Circumference of wheel = πd = 0.75πm.

How far the car travels per minute

= 60s * (14m/s) = 840m.

Hence number of revolutions per minute

= 840m / 0.75πm

= 356.507....

= 357. (nearest whole number)

6 0
3 years ago
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