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Kipish [7]
3 years ago
13

(7x^2-2x+5) - (3x^2+4x+10) simplify and show steps

Mathematics
1 answer:
mixas84 [53]3 years ago
5 0
7x^2 - 3x^2 = 4x^2
-2x+4X=4X
5+ 10 = 15
4x^2 + 4x + 15
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18.02 units

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What is the width of a rectangle that has an area of 10 ft.² and a length of 24 inches give your answer in feet
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Step-by-step explanation:

A=wl

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there ate 4 more oranges than apples in the fruit bowl, there ate 5 more apples than bananas. there are 2 bananas. how many of e
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Missing number in the series 9, ____, 6561, 43046721 is: 81 25 62 31 18 9. one number is 2 more than 3 times another. their sum
Nadusha1986 [10]

Alright, lets get started.

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6561^2 = 43046721

It means the missing number will be square of its previous number

Means 9^2 = 81, so missing number is 81.   :    Answer

Next : one number is 2 more than 3 times another. their sum is 22. find the numbers.

Suppose one number is x and second number is y

As per given equation, x = 3y + 2  ......equation (1)

Their sum is 22  means,  x+y = 22 .......equation (2)

Putting the value of x from equation1 into equation 2

3y + 2 + y = 22

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Subtracting 2 in both sides

4y + 2 - 2 = 22 - 2

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y = 5

x = 22 - y = 22 - 5 = 17

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Next : the missing number in the series 1, 4, 27,____, 3125 is

1 could be written as 1

4 could be written as 2^2

27 could be written as 3^3

So , next number would be 4^4

4^4 = 256

Next one is 5^5 = 3125

So, the missing number is 256   :    Answer


Next : the next number in the series 3, 4, 6, 7, 9, 10 is

After 3,4 (5) is mising, 6, 7 (8) is missing, 9, 10 (11) will be missing

So, next number will be 12.   : Answer



Next : a farmer is planting a straight row of crops with 3 feet between each plant. if 23 are planted, what is the distance between the first and last plant?

Between 2 plants, the distance is = 3 * (2-1) = 3

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So, between 23 plants, the distance is = 3 * (23-1) = 3 * 22 = 66

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7 0
3 years ago
Calculate the value of the expression (Explain in words)<br><br> -30-(-20)
oee [108]

Answer:

-10

Step-by-step explanation:

when you subract a negative the minus signs negate each other

8 0
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