Which of the following statements are true? I. -(-6) = 6 and -(-4) > -4 III. 5 + 6 = 11 or 9 - 2 = 11 II. -(-4) < 4 or -10
1 answer:
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*Select two choices: one for the centers and one for the spreads.
A. Centers: The sharks have a lower median age than the koi
B. Spreads: The ages of the koi are more spread out.
C. Centers: The sharks have a greater median age than the koi.
D. Spreads: The ages of the sharks are more spread out
(See attachement for diagram)
Answer:
A. and B.
Step-by-step explanation:
Measure of center that can be used in stating the differences between Koi and Shark is the median.
Examining the dot plot, the median age for Sharks is 20.
The median age for Koi is the 14th data point, which is 40.
Thus, for the center, we can conclude that Sharks has a lower median age than Koi.
For the spread, the larger the range, the more spread out the data are.
Thus:
Range for Sharks = 30 - 10 = 20
Range for Koi = 70 - 25 = 45
Therefore, we can conclude that the ages of Koi are more spread out.
Answer:
The answer is 3.6 acres per day
Step-by-step explanation:
To find the unit rate divide the number of acres by number of days
∴ Unit rate = ÷
= (6 × 4 + 3)/4 ÷ (1 × 8 + 7)/8 = 27/4 ÷ 15/8
= 27/4 × 8/15 = 18/5 = 3.6 acres per day
Solution:
<u>We know that:</u>
- The base angles are equivalent.
<u>This means that:</u>
- This triangle is an isosceles triangle.
- The legs of the triangle are equivalent.
<em>Let's use Pythagoras theorem to find z.</em>
<u>Finding z using Pythagoras theorem.</u>
- ⇒
- ⇒
- ⇒
- ⇒
- ⇒
- ⇒
Thus, the value of z is 8.