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Blababa [14]
3 years ago
14

An 5 in. by 7 in. photo is reduced so that the width (the shorter dimension) is 4 in.

Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0
I think A which is 4in but not sure
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In New York City, it rained 2 inches in July and 4.7 inches in August. What
Phantasy [73]
The answer is 7.7 in
8 0
2 years ago
Read 2 more answers
Write an explicit formula that represents the sequence defined by the following recursive formula
Stels [109]

Answer:

The explicit formula is a_{n} = 5 - 6n

Step-by-step explanation:

The explicit formula of the arithmetic sequence of the recursive formula

a_{1} = first term; a_{n} = a_{n-1} + d is a_{n} = a + (n - 1)d, where

  • a is the first term
  • d is the common difference between each two consecutive terms
  • n is the position of the number

∵ The recursive formula is a_{1} = -1 and a_{n} = a_{n-1} - 6

→ Compare it with the formula above

∴ a = -1 ⇒ 1st term

∴ d = -6 ⇒ common difference

→ Substitute them in the form of the explicit formula

∵ a_{n}  = -1 + (n - 1)(-6)

∴ a_{n} = -1 + (-6)(n) - (-6)(1)

∴ a_{n}  = -1 + -6n - (-6)

∴ a_{n} = -1 - 6n + 6

→ Add the like term

∴ a_{n} = 5 - 6n

∴ The explicit formula is a_{n} = 5 - 6n

7 0
3 years ago
Assume that the heights of women are normally distributed with a mean of 64.9 inches and a standard deviation of 1.6 inches. Fin
bulgar [2K]

Answer:

Q3 = 65.98 inches.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be 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.

Normally distributed with a mean of 64.9 inches and a standard deviation of 1.6 inches.

This means that \mu = 64.9, \sigma = 1.6

Find Q3, the third quartile that separates the bottom 75% from the top 25%.

This is X when Z has a pvalue of 0.75. So X when Z = 0.675.

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

0.675 = \frac{X - 64.9}{1.6}

X - 64.9 = 1.6*0.675

X = 65.98

Q3 = 65.98 inches.

4 0
3 years ago
Please help I’ve been stuck on this. :/
Alona [7]

Answer:

$0.98

Step-by-step explanation:

Please see attached picture for full solution.

5 0
3 years ago
How do you write 13065.01 in word form
ale4655 [162]
That's "thirteen thousand sixty-five and one hundredth".
7 0
3 years ago
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