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aliya0001 [1]
2 years ago
12

What is the vertex x^2+2x-3=0

Mathematics
1 answer:
kicyunya [14]2 years ago
3 0

Step-by-step explanation:

2 squared plus 2 =5

5+2x =7x

7x-3 = 4x

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Twice the sum of a number and six decreased by fifteen is the same as eighteen more than the product of five and the number. Fin
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Answer:

-9

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4 0
2 years ago
un carro que se mueve con velocidad constante recorre 120 km en 75 minutos,¿en que tiempo recorrera el carro una distancia de 20
Ivan

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320 minutos

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4 0
3 years ago
What is the value of cos A?
BlackZzzverrR [31]

Step-by-step explanation:

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its yr ans

hope it helps.

<h2>stay safe healthy and happy....</h2>
3 0
2 years ago
A random sample has been taken from a population. A statistician, using this sample, needs to decide whether to construct a 90 p
AURORKA [14]

Answer:

Step-by-step explanation: a confidence interval is a range that shows how precise the measurement is. if a statistician decides to construct using 90 percent C I over a 95% C I, it tells you that you have 10% chance of being wrong rather than 5% chance of being wrong while using the 95%. Also a 90 percent confidence interval would be narrower than a 95 percent confidence interval

5 0
3 years ago
Reas the above and answer​
sergeinik [125]

Answer:

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6 0
3 years ago
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