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bearhunter [10]
3 years ago
5

(7i²– 5i + 12) – (3i²+ 6i– 9)simplify ​

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0

Answer:

the correct answer is

4i^2 +6i +21

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How many pounds of oranges cost $12? Show your work.
Alexus [3.1K]
Is this question lacking information? Because we don't know how much one pound costs.
8 0
3 years ago
How many square feet of outdoor carpet will we need for this hole
Fed [463]

Answer:

40 ft²

Step-by-step explanation:

The shape of the outdoor carpet can be decomposed into 2 triangles and 1 rectangle

✔️Area of triangle 1:

Area = ½*bh

b = 6 - 3 = 3 ft

h = 11 - 7 = 4 ft

Area of triangle 1 = ½*3*4 = 6 ft²

✔️Area of triangle 2:

Area = ½*by

b = 2 ft

h = 3 ft

Area of triangle 2 = ½*2*3 = 3 ft

✔️Area of rectangle = L × W

L = 11 ft

W = 3 ft

Area of rectangle = 11 × 3 = 33 ft

✅area of outdoor carpet = 4 + 3 + 33 = 40 ft²

4 0
3 years ago
Solve the inequalities
umka2103 [35]
1 is C, since it is anything less than 8, so 7 times 2 is 14 minus 2 is 12.
2 is C, since it is anything less than 8, so 7 times 3 is 21, and 1 minus 21 is -20.
8 0
3 years ago
Mark all the statements that are true . A. This graph is a function whose domain is the set 3 B. This graph is a function becaus
nika2105 [10]

The statements that are true are

  • This graph is a function because the value of x is the same for every value of y
  • The equation of this line is x = 3. Options B and D

This is further explained below.

<h3>What are the statements?</h3>

Generally, A relation is considered to be a function if it can be shown that each value from the set of first components of ordered pairs is connected with precisely one value from the set of second components of ordered pairs.

In conclusion, You may also consider this in terms of the fact that there is one and only one y associated with each x.

Although it is obvious that this is not the case, the calculation for the vertical line nevertheless uses these terms.

Read more about function

brainly.com/question/12431044

#SPJ1

3 0
1 year ago
7(x+4)=-21<br> what does x equals<br> CORRECT answers ONLY please
Mila [183]

Answer: x = -7

Step-by-step explanation:

7 (x + 4) = -21

7x + 28 = -21

Subtract 28 from both sides

7x = -49

Divide both sides by 7

x = -7

7 0
3 years ago
Read 2 more answers
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