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2 years ago

Solve the following inequality for x.

1 answer:

7 0

54 <_ 9x
Divide both sides by 9, sign flips
6 >_ x (same as choice B)
I apologize if the symbols make no sense, the typing keyboard has little variety.

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Amy solved the equation 2x ^ 2 + 5x - 42 = 0 She stated that the solutions to the equation were 7/2 and -6. Do you agree with Am

elena-14-01-66 [18.8K]

Answer:

The answer to your question is Amy is correct.

Step-by-step explanation:

Data

Equation 2x² + 5x - 42 = 0

-Factor

2 x 42 = 84

- Find the prime factors of 84

84 2

42 2

21 3

7 7

84 = 2² 3 7

-Find two numbers that added gives 5

These numbers are 12 and -7

- Express the equation using these numbers

2x² + 12x - 7x - 42

-Factor by common factor

2x(x + 6) -7(x + 6)

-Factor by grouping

(x + 6)(2x - 7)

-Find the roots

x₁ + 6 = 0 2x₂ - 7 = 0

x₁ = -6 2x₂ = 7

x₂ = 7/2

8 0

3 years ago

a restaurant offers 4 pasta meals, 5 seafood meals, and 6 burgers for its main course. If a diner picks a meal at random, what i

777dan777 [17]

Answer:

5/15 or 1/3 reduced

Hope this helps!

7 0

4 years ago

Read 2 more answers

3This triangle is being rotated. The square where the three triangles meet is called the:

allsm [11]

Answer:

Vertex (if it is a right triangle).

Step-by-step explanation:

8 0

3 years ago

First answer gets brainliest

mash [69]

Answer:

$2.20b + 3.60m = 44.20\\2.50b + 3.40m = 44.70$

Step-by-step explanation:

So in this systems of equations, we know the prices of the items, so the coefficients will represent how many Mary is getting of that item. So you can represent amount of bread as the variable b and the amount of milk as the variable m. On the right will be the total amount spent, since multiplying the price by how much you buy should get you the price

So since at store A, she spends 44.20 and bread costs 2.20 and milk costs 3.60 you get

$2.20b + 3.60m = 44.20$