Mrs.smith divided one square mile of land to her 3 children,amy,brianna ,and chad.
1 mile is divided among each children . so the fraction of land each one get is 
Amy's land =
Brianna's land =
Chad's land =
Amy decided to divide her portion of the land equally between her 2 children.
We know Amys land = 1/3
1/3 is divided among two children so we divide the fraction by 2
= 
= 
fraction of mrs. smith's land one of amy's children own.
Chad divided his land equally among his 6 children
We know Amys land = 1/3
1/3 is divided among 6 children so we divide the fraction by 6
= 
= 
fraction of mrs. smith's land one of Chad's children own.
A diagram helps.
Diagonal TO divides the rectangle into two triangles of base 10 and height 4. The area of the two of them together (the area of the rectangle) is 10*4 = 40.
The area of rectangle TYOC is 40 square units.
Answer:
D, A
Step-by-step explanation:
a line segment has two endpoints and a length that is finite or can be measured.
a line goes in both directions infinitely; cannot be measured
a ray has one endpoint and travels in 1 direction infinitely; cannot be measured
Step-by-step explanation:
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Using the Empirical Rule, it is found that the interval in which approximately 978 students scored was:
A. 72 < x < 88.5.
<h3>What does the Empirical Rule state?</h3>
It states that, for a normally distributed random variable:
- Approximately 68% of the measures are within 1 standard deviation of the mean.
- Approximately 95% of the measures are within 2 standard deviations of the mean.
- Approximately 99.7% of the measures are within 3 standard deviations of the mean.
The percentage that 978 is of 1200 is:
978/1200 x 100% = 81.5%.
Considering the symmetry of the normal distribution, two outcomes are possible involving 81.5% of the measures:
- Between one standard deviation below the mean and two above, which in the context of this problem is between 77.5 and 94.
- Between two standard deviations below the mean and one above, which in the context of this problem is between 72 and 88.5, which is option A in this problem.
More can be learned about the Empirical Rule at brainly.com/question/24537145
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