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lozanna [386]
3 years ago
11

-4k^2-8k-3 = -3-5k^2

Mathematics
2 answers:
mel-nik [20]3 years ago
8 0
-4k^2-8k-3 = -3-5k^2 \\ \\ -4k^2 - 8k = -5k^2 \\ \\ 4k^2 + 8k - 5k^2 = 0 \\ \\ -k^2 + 8k = 0 \\ \\ 8k - k^2 = 0 \\ \\ k(8 - k) = 0 \\ \\ k = 0,8 \\ \\

The final result is: k = 0, 8.
Mars2501 [29]3 years ago
3 0
--> -4k^2 -8k -3 +3 +5k^2 = 0

k^2 -3k = 0

Apply the quadratic formula

Taking a= 1, b= -3 and c= 0.

Therell be 2 values for k
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A recipe for soup calls for 2 cups of black beans for
mixer [17]

Answer:

16 cups

Step-by-step explanation:

5x8=40

2x8=16

7 0
3 years ago
7 line tshirt company manufactures t-shirts and sells them online.The company has a model where the cost C, in dollars to make x
bonufazy [111]

Answer:

The company must sell at least 2 shirts to break even.

Step-by-step explanation:

Cost:

The cost is given by the following equation:

C = \frac{40}{30x+20} + 20 = \frac{4x}{3} + 20

Revenue:

The revenue is given by the following equation:

R = 15x

How many t shirts must the company sell to break even?

Breakeven point is when the revenue is the same as the costs. So

\frac{4x}{3} + 20 = 15x

15x - \frac{4x}{3} = 20

\frac{45x}{3} - \frac{4x}{3} = 20

Multiplying everything by 3

45x - 4x = 60

41x = 60

x = \frac{60}{41} = 1,...

Since you cant make a decimal value of shirts

The company must sell at least 2 shirts to break even.

[

7 0
3 years ago
The least common multiple of two numbers is 40. The difference of the two numbers is 2.
Ulleksa [173]
The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. So therefore, the numbers would be 2 and 4.
8 0
3 years ago
Greg has collected 4,385 pennies and Hannah has collected 3,899 pennies. How many times as great as the value of 3 in 4,385 is t
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Answer: The 3 in 3,899 is 10 times the 3 in 4,385!
4 0
3 years ago
Read 2 more answers
Help pleaseeeeeeeeeeeeeeee
kupik [55]

Answer:C

Step-by-step explanation:

your answer is 390

First area of the rectangle which formula is bxh base time height.

that gives you 300 since 15x20=300

The for the triangle Formula is Basexheight deivded by 2

so 15x12 devided by 2 =90

300+90=390

Hope this helps you. :)

8 0
3 years ago
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