For what x-value(s) does sin(x) = -1?

Mathematics

1 answer:

Ghella [55]3 years ago

3 0

Sin x = -1 at 90 degrees, 270 degrees, - 90 degrees, and - 270 degrees.
Letter A

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If one batch needs 3/4 cups of oil. and she want to make 5 batches. how much would she need?

murzikaleks [220]

Answer:

3.75 cups of oil or 3 and 3/4 cups of oil

Step-by-step explanation:

Simple

1 batch=0.75 cups of oil(3/4)

5 Batch=? (Multiply by 5)

5 Batches=3.75 cups (or 3 3/4) of oil

5 0

2 years ago

Read 2 more answers

At a bargain store, Tanya bought 4 items that each cost the same amount. Tony bought 5 items that each cost the same amount, but

Alex_Xolod [135]

If x is the amount that Tanya paid for each item, then Tony's items would be x-2.25. So:

3x=4(x-2.25)

3x=4x-9

x=9

x-2.25=6.75

Tanya spent $9 on each item; Tony spent $6.75 on each of his items. ☺☺☺☺

6 0

3 years ago

An engineer commutes daily from her suburban home to her midtown office. The average time for a one-way trip is 36 minutes, with

Ivanshal [37]

Answer:

57.93% probability that a trip will take at least 35 minutes.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 36, \sigma = 4.9$