Answer:
1/4
Step-by-step explanation:
The completion of the grouped frequency distribution for the test scores of the fifteen students that took the biology test last week is as follows:
Test scores Frequency
79 to 83 5
84 to 88 2
89 to 93 6
94 to 98 2
<h3>What is a frequency distribution?</h3>
A frequency distribution is a pictorial or graphical representation that shows the number of observations of each categorical value (a group of values) that occurs.
By showing the frequency counts for each category, it becomes easier to determine and interpret the presented information based on their relative frequencies.
Frequency charts, tables, or graphs are used to display frequency distributions of data.
Learn more about frequency distribution at brainly.com/question/17114842
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Answer:
Step-by-step explanation:
C
Answer:
144 yds.
Step-by-step explanation:
Answer: m∠R=30° m∠N=30°
If ΔRST is congruent to ΔNPQ, then we can infer that m∠R is congruent to m∠N
m∠R=-7x+9
m∠N=-10x
If both angles are congruent, we can solve for x...
-7x+9=-10x
add 7x to both sides
9=-3x
divide both sides by -3
-3=x
Now that we know the value of x, we can solve for the measure of the angles.
m∠R=-7x+9
m∠R=-7(-3)+9
m∠R=21+9
m∠R=30°
m∠N=-10x
m∠N=-10(-3)
m∠N=30°
