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ozzi
3 years ago
7

Solve using the quadratic formula x2 + 2x – 2 = 0 Give your answers to 2DP. X = X =

Mathematics
1 answer:
ra1l [238]3 years ago
3 0
-2plusmimus 2
X=0
X=-4
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3 years ago
Jane and Miguel are siblings. They go to different schools. Jane walks 6 blocks east from home. Miguel 8 blocks north. How many
Firlakuza [10]
For this case we can model the problem as a rectangle triangle.
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5 0
3 years ago
True or false. There are some parallelograms that are rectangles.
RideAnS [48]

True, because a parallelogram is a four-sided rectangular figure with opposite sides parallel.  This is a way to describe a rectangle as well.  The only difference is that rectangles must have 90 degree angles, but it is possible for a parallelogram to have 90 degree angles as well.  This also means that all rectangles are technically parallelograms as well.

6 0
4 years ago
Read 2 more answers
At Denver International Airport, 86% of recent flights have arrived on time. A sample of 11 flights is studied. What is the vari
notsponge [240]

Answer:

s^2=1.32

Step-by-step explanation:

-This is a binomial probability distribution problem.

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\sigma^2=np(1-p)

#We substitute the given parameters in the formula to solve for variance:

\sigma^2=np(1-p)\\\\\\=11\times 0.86(1-0.86)\\\\=1.324\approx1.32

Hence, the sample variance is 1.32

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3 years ago
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Nataly_w [17]
Alternate interior angles
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3 years ago
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