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xeze [42]
3 years ago
9

I need help!!!!!!!!!!

Mathematics
1 answer:
ad-work [718]3 years ago
3 0

9514 1404 393

Answer:

  21.  3x^2 +7x

  22.  6x^3 +3x

Step-by-step explanation:

21. The perimeter is the sum of the side lengths.

  P = (x^2 +3x +1) +(4x -1) +(2x^2)

  P = x^2(1 +2) +x(3 +4) +(1 -1) . . . . combine like terms

  P = 3x^2 +7x

__

22. The area is the product of the dimensions.

  A = (3x)(2x^2 +1)

  A = 6x^3 +3x . . . . . use the distributive property

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what is the final price for $125 bicycle when 8% sales taxis paid? A. $115.00 B. $135.00 C. $134.60 D. $10.00
Yuki888 [10]
8/100 * 125 =
(125 * 8)/100 =
1000/100 =
10

$125 + $10 = $135

Answer: B. $135.00
7 0
3 years ago
Read 2 more answers
Write the sentence as a conditional statement 5x+2=12 means that 5x=10
Cerrena [4.2K]

Answer: Here the required conditional statement would be "If we subtract 2 from the both sides of 5x+2=12 then we get 5x=10".

Step-by-step explanation:

A conditional statement represented by m n , is an if-then statement in which m is a hypothesis followed by conclusion n.

A conditional statement helps to find the answer by the use of a set conditions on it.

In the given question "if we subtract 2 from the both sides of 5x+2=12" is our hypothesis,whereas "then we get 5x=10 is our conclusion."


4 0
4 years ago
Jessica picks tomatoes in her garden. She fills several bags. This line plot shows the weight of each bag.
Strike441 [17]

Answer:

3/4 lb

Step-by-step explanation:

Lightest: 3 3/4

Heaviest: 4 1/2 = 4 2/4

4 2/4 - 3 3/4 = 18/4 - 15/4 = 3/4

3 0
3 years ago
Read 2 more answers
State if each set of three numbers can be the lengths of the sides of a triangle and explain why and how you got the answer.
jeka94
To find if three number are a triangle, the formula is A^2 + B^2 = C^2. This means that when you square the lowest two terms they need to add to the square of the third number. 
12^2 = 144
13^2 = 169
144 + 169 = 313
26^2 = 676

Since 313 does not equal 676 these numbers cant be the sides of a triangle.
7 0
4 years ago
Please help me with this
Alex_Xolod [135]

Answer:

it's an example related to your question

Step-by-step explanation:

Q. One number is 2 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 200, find the number

Answer:First number = x

One number = 2x

Third number = 100 + x

x + 2x + 100 + x = 200

Collect like terms

4x + 100 = 200

4x = 100

x = 25

First number = 25

One number = 50

Third number =125

Total= 200

Hope this helps.

7 0
3 years ago
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