9514 1404 393
Answer:
E. 40 and 33
Step-by-step explanation:
The Pythagorean theorem tells you the sum of the areas of the smaller squares will match the area of the largest square.
The answer choices have sums of ...
A: 76; B: 73; C: 96; D: 66; E: 73
So, <em>choices with the correct sum are B and E</em>.
If this question asks you to "choose all that apply," then B & E will be your answer choices.
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We note that the areas of the smaller squares appear to be not much different in size. If their areas were 23 and 50, the smaller square would be less than half the size of the larger one. So, if the figure is drawn approximately to scale, the choice of <em>40 and 33 is a better choice</em>.
Answer:
P= (3x-1)+(x+2)+(3x^2-11x)+(x^2-3x)
= 4x^2-10x+1
Hello!
To calculate percent, it is number of positive cases / number of total cases. So first, we want to find the <u>number of positive cases.</u> You're looking for platinum and silver bands, so just add together the number of platinum and silver bands sold.
Platinum bands: 900
Silver bands: 900
Number of positive cases: 900 + 900 = 1,800
Now, look for the <u>number of total cases.</u> Here, just add together all the band types to get the number of rings bought in total.
Platinum: 900
Silver: 900
Gold: 700
Total number of cases: 900 + 900 + 700 = 2,500
Now, use the equation, and divide the two.
1,800 / 2,500 = .72 = 72%
Therefore, your answer is 72% of the rings sold had a platinum or silver band.
Hope this helps!
Answer:
C
Step-by-step explanation:
The area of a circle is pi * r^2. The radius is 7 because the diameter is 14 so the radius is 14/2. The square of 7 is 49. Pi is approximately 3.14, so 49 * 3.14 is about 154.