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Alexxx [7]
3 years ago
15

A bottle and a cap together cost $1.10. The bottle costs $1 more than the cap. How much does each cost?

Mathematics
1 answer:
Darya [45]3 years ago
3 0

Answer:

The cap costs 10 cents and the botttle costs $1

Step-by-step explanation:

1.10-1=.10

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Suppose the life of a particular brand of laptop battery is normally distributed with a mean of 8 hours and a standard deviation
Ierofanga [76]

Answer:

4.75% probability that the battery will last more than 9 hours before running out of power

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 = 8, \sigma = 0.6

What is the probability that the battery will last more than 9 hours before running out of power g

This is 1 subtracted by the pvalue of Z when X = 9. So

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

Z = \frac{9 - 8}{0.6}

Z = 1.67

Z = 1.67 has a pvalue of 0.9525

1 - 0.9525 = 0.0475

4.75% probability that the battery will last more than 9 hours before running out of power

4 0
3 years ago
In the middle of a test <br> Please answer!
vaieri [72.5K]

Answer:

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4 0
3 years ago
Find an equation of the line whose intercepts are twice those of the graph of 5y+2x=10.
sertanlavr [38]
5y+2x=10<span />y=<span><span>−25</span></span>x+2<span /><span>2</span><span>4</span><span>6</span><span>8</span><span>10</span><span>−2</span><span>−4</span><span>−6</span><span>−8</span><span>−10</span><span>2</span><span>4</span><span>6</span><span>8</span><span>10</span><span>−2</span><span>−4</span><span>−6</span><span>−8</span><span>−10</span>Let's solve for x.<span><span><span>5y</span>+<span>2x</span></span>=10</span>Step 1: Add -5y to both sides.<span><span><span><span>2x</span>+<span>5y</span></span>+<span>−<span>5y</span></span></span>=<span>10+<span>−<span>5y</span></span></span></span><span><span>2x</span>=<span><span>−<span>5y</span></span>+10</span></span>Step 2: Divide both sides by 2.<span><span><span>2x</span>2</span>=<span><span><span>−<span>5y</span></span>+10</span>2</span></span><span>x=<span><span><span><span>−5</span>2</span>y</span>+5</span></span>Answer:<span>x=<span><span><span><span>−5</span>2</span>y</span>+<span>5

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6 0
4 years ago
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A) Round 1.7802 to 1 significant figure.
77julia77 [94]

Answer:

2

Step-by-step explanation:

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HHHHHEEEEELLLLLPPPPP PLEASEEE!!!!
alukav5142 [94]

Answer:

15 times per seconds

Step-by-step explanation:

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