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Lera25 [3.4K]
3 years ago
13

Any one know how to do this ?

Mathematics
1 answer:
MrRissso [65]3 years ago
6 0

Answer:

Step-by-step explanation:

AC is the same portion of BD and the point B is at the same center point in between of AC as C is in the center BD.

Hope that makes sense

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Which expression uses the commutative property to make it easier to evaluate 1/6 • 5/7 • 18?
Korvikt [17]
It’s A, Because if you do KCF (Keep Change Flip) It would be 1/6 X 7/5.
8 0
2 years ago
4 - 3x = 8 - 4x Plz answer this question
timurjin [86]

Answer:x=4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4−3x=8−4x

4+−3x=8+−4x

−3x+4=−4x+8

Step 2: Add 4x to both sides.

−3x+4+4x=−4x+8+4x

x+4=8

Step 3: Subtract 4 from both sides.

x+4−4=8−4

x=4

8 0
3 years ago
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How many gallons of paint would you need to paint a dog house that is 372ft in total?
Shalnov [3]
It would be 44gallons
6 0
3 years ago
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The prices of all college textbooks follow a bell-shaped distribution with a mean of $113 and a standard deviation of $12. Using
Soloha48 [4]

Step-by-step explanation:

In statistics, the empirical rule states that for a normally distributed random variable,

  • 68.27% of the data lies within one standard deviation of the mean.

  • 95.45% of the data lies within two standard deviations of the mean.

  • 99.73% of the data lies within three standard deviations of the mean.

In mathematical notation, as shown in the figure below (for a standard normal distribution), the empirical rule is described as

                             \Phi(\mu \ - \ \sigma \ \leq X \ \leq \mu \ + \ \sigma) \ = \ 0.6827 \qquad (4 \ \text{s.f.}) \\ \\ \\ \Phi(\mu \ - \ 2\sigma \ \leq X \ \leq \mu \ + \ 2\sigma) \ = \ 0.9545 \qquad (4 \ \text{s.f.}) \\ \\ \\ \Phi}(\mu \ - \ 3\sigma \ \leq X \ \leq \mu \ + \ 3\sigma) \ = \ 0.9973 \qquad (4 \ \text{s.f.})

where the symbol \Phi (the uppercase greek alphabet phi) is the cumulative density function of the normal distribution, \mu is the mean and \sigma is the standard deviation of the normal distribution defined as N(\mu, \ \sigma).

According to the empirical rule stated above, the interval that contains the prices of 99.7% of college textbooks for a normal distribution N(113, \ 12),

                \Phi(113 \ - \ 3 \ \times \ 12 \ \leq \ X \ \leq \ 113 \ + \ 3 \ \times \ 12) \ = \ 0.9973 \\ \\ \\ \-\hspace{1.75cm} \Phi(113 \ - \ 36 \ \leq \ X \ \leq \ 113 \ + \ 36) \ = \ 0.9973 \\ \\ \\ \-\hspace{3.95cm} \Phi(77 \ \leq \ X \ \leq \ 149) \ = \ 0.9973

Therefore, the price of 99.7% of college textbooks falls inclusively between $77 and $149.

5 0
2 years ago
Can someone Help!!!!!! Please!!!!!!
Kisachek [45]

Answer:

You could use a piece wise function to simulate the speed someone is running at a given time in minutes.

for 0\leq t < 15      s = 9 mph

for 15\leq t< 25     s = 0 mph

for 25\leq t\leq 40      s = 6 mph

Step-by-step explanation:

I can't do graphs right now but there's an idea

8 0
3 years ago
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