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MariettaO [177]
3 years ago
13

What are quadratic roots

Mathematics
1 answer:
Dmitrij [34]3 years ago
4 0
This may help, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term.
here’s an example

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“I​ ​am​ ​thinking​ ​of​ ​a​ ​number​ ​such​ ​that​ ​6​ ​less​ ​than​ ​the​ ​product​ ​of​ ​7​ ​and this​ ​number​ ​is​ ​85.”​ ​
Arada [10]

let x = the number

 7x - 6 =85

add 6 to each side

7x =91

divide each side by 7

x = 91 /7 = 13

Answer is B 13

4 0
3 years ago
Read 2 more answers
Will Mark brainliest if answer both correctly / What is X= ? / conditional statement
harkovskaia [24]
The answer is for 1st question is “10.4” and for the second question “non of these choices are correct”.

Explanation:

For the 1st question:

tan = opposite / adjacent

tan 30 = x / 18

18 tan 30 = x

x = 10.4

For the 2nd question,
If a triangle as an angle of 90 degree, it is 100% a right triangle.

Hope it helps :), mark me brainliest please!
6 0
3 years ago
The revenue from selling x shirts is r(x) = 11x. The cost of buying x shirts is c(x) = 6x + 20. The profit from selling x shirts
oee [108]

Answer: option A is the correct answer.

Step-by-step explanation:

The expression that relates revenue, profit and cost is

Profit = Revenue - Cost

The revenue from selling x shirts is r(x) = 11x. The cost of buying x shirts is c(x) = 6x + 20. Therefore,

p(x) = r(x) - c(x)

p(x) = 11x - (6x + 20)

By expanding the bracket, the minus sign will alter each term in the bracket. Therefore,

p(x) = 11x - 6x - 20

p(x) = 5x - 20

8 0
3 years ago
What is 657 divided by 2 in long division? ​
Anvisha [2.4K]
The answer is going to 328.5 or 328.50 is the same thing
4 0
3 years ago
Can somebody help me with this problem
kherson [118]
The 2nd answer

looking at the graph
when she was born she was 0 years old. and at the 0 year, the height is at 30 in
7 0
3 years ago
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