2 years ago

Expand the following quadratic to standard form. y=(x-2)^2+6

1 answer:

4 0

The equation contains a binomial which is multiplied by itself.

(x - 2)(x - 2)

Use FOIL (first outside inside last) to expand.

(x^2 - 4x + 4) + 6

Remove brackets and simplify

y = x^2 - 4x + 10

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Given that a 90% confidence interval for the mean height of all adult males in Idaho measured in inches was [62.532, 76.478]. Wh

NNADVOKAT [17]

Answer:

The point estimate used to estimate the mean height of all adult males in Idaho is 69.505 inches.

Step-by-step explanation:

Each confidence interval has two bounds, the lower bound and the upper bound. The points estimate used to estimate the mean is the halfway point between those two bounds, that is, the sum of those two bounds divided by two.

In this problem, we have that:

Lower bound: 62.532

Upper bound: 76.478

Point estimate: (62.532 + 76.478)/2 = 69.505

The point estimate used to estimate the mean height of all adult males in Idaho is 69.505 inches.

3 0

2 years ago

Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would take

egoroff_w [7]

Answer: it will take them about 24 minutes working together

Step-by-step explanation:

1/40 + 1/60 =