Math Test #1 T 5 X A math teacher has started a competition to get students to study for tests. She says that when more than half the class gets an 80 or better AND 95% or more of the class scores 65 or better, they will get pizza for lunch. On the first test, the mean is 75 with a standard deviation of 9. Using the Empirical Rule, does the class get the pizza for lunch? Why or why not? You may use the sketch on the left if needed. 1 1 1 1 1 -20 11 11+20 +30 r Suami​

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Step-by-step explanation:

answer: finding the extract measurements and knowing the points

step-by-step explanation:

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°