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shusha [124]
1 year ago
10

Select the quadratic that has roots x = 8 and x = -5.

Mathematics
1 answer:
Mars2501 [29]1 year ago
6 0

\text{ The roots  are}~ \alpha = 8~ \text{and}~ \beta = -5\\\\\text{Equation for the given roots,}\\\\x^2 -(\alpha +\beta )x +\alpha \beta = 0\\\\\implies x^2 -(8-5)x + 8(-5)=0\\\\\implies x^2 -3x -40=0\\\\\text{Hence, the answer is option B}

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Can someone explain this to me not only answers make sure to make it clean then i will mark brainliest please i really need an e
Igoryamba

Answer:

Since the sum of the angles equal to 720, you have to add all the angles to add to 720 and then solve for x, in which would look like this (x+2)+(x-4)+(x+6)+(x-3)+(x+7)+(x-8)=720, which is simplified to (6x)=720, in which will make x=120. Next, since its angle E, you plug in tha x value, (120+6), in which the ANSWER IS 126 DEGREES

Step-by-step explanation:

Hope this help ^w^

4 0
2 years ago
Is the square root of 4 plus the square root of 16 rational
Ahat [919]
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4 0
3 years ago
Read 2 more answers
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nekit [7.7K]
To answer this question, we need to know what like terms are. Like terms are terms whose variables and exponents are the same. The coefficients can be different, though. In this case, the like terms are -a²b and 5a²b (because of the definition above. 
4 0
2 years ago
8 more than 4 times a number is 36
algol13

Answer:

8+4×z=36

Step-by-step explanation:

5 0
2 years ago
Josh mows grass to earn extra money. He charges $25.00 for each lawn. He mows at least 5 yards each week; but not more than 20 y
aleksklad [387]

Answer:

Let

x = number of yards mowed

The domain of the function is

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If we multiply the inequality by 25, we get

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Which is the same as

125  ≤  f(x)  ≤ 500

(Range of the function)

Domain   5 ≤  x  ≤ 20

Range     125  ≤  f(x)  ≤ 500

3 0
2 years ago
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