Answer:
463833
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Medium
Solution
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In △ABD and △ACD, we have
DB=DC ∣ Given
∠ADB=∠ADC ∣ since AD⊥BC
AD=AD ∣ Common
∴ by SAS criterion of congruence, we have.
△ABD≅△ACD
⇒AB=AC ∣ Since corresponding parts of congruent triangles are equal
Hence, △ ABC is isosceles.
Answer:
The estimated mean number of rockets hits in the region is 533.
Step-by-step explanation:
We are given the following information,
Number of rocket hits | Observed number of regions
0 | 228
1 | 214
2 | 94
3 | 32
4 | 7
5 | 0
6 | 0
7 | 1
We are asked to estimate the mean number of rocket hits in the region.
The mean or expected value is given by

Therefore, the mean number of rockets hits in the region is 533.
Answer:
-5/12
Step-by-step explanation:
Convert to twelfths. Then subtract.
Answer:
half of it would be 45
Step-by-step explanation:
120 - 30 = 90
90 divided by 2 = 45
hope this helped! sorry if i didn't answer your question, i was a little bit confused on what you wanted us to solve:)
if u want to find the length of it, it would be 150 because 120 + 30 = 150