Which best describes Devon's first error? In Step 1. Devon should have included only the numbers 0 and 1 on the number line O In Step 2, Devon should have used the numerator to determine the scale. O In Step 3, Devon should have divided the space between - 1 and 1 into sixths. O In Step 4. Devon should have counted 5 spaces to the left of 0.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b