Answer:
(8, 0)
Step-by-step explanation:
The x-intercepts are the roots or solutions of a quadratic equation. To solve this equation use the quadratic formula.
In this equation, a = 1, b = -16, and c = 64. Substitute these values into the formula.
After simplifying, you are left with 16/2 which is 8.
The x-intercept of the graph of this function is (8, 0).
Answer:
E. 0.6872
Step-by-step explanation:
An appropriate calculator or Z-table is needed for answering questions like this. My calculator tells me the area is ...
0.687267787 ≈ 0.6873
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The web app shown in the attachment gives the same 4-digit value.
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If you look up the area values in a table, you might find ...
p(z < -1.2) = 0.1151
p(z < 0.85) = 0.8023
Then the difference is ...
p(-1.2 < z < 0.85) = 0.8023 -0.1151 = 0.6872
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Note that the least significant digit of the difference between rounded numbers often cannot be trusted to be accurate--as in this case.
Answer: 3 or 9
Step-by-step explanation:
either 3 because of the different marbles or 9 because of total
Answer: Choice A
Ray PL and ray PQ
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Explanation:
Opposite rays always have the same endpoint in common. So opposite rays start with the same letter.
Opposite rays also lay on the same geometric line. This means they point in complete opposite directions. Gluing together two opposite rays forms a line that extends forever in both directions.
Ray PQ points in one direction while ray PL points in the opposite direction. These are opposite rays.
Saying "ray PQ" is different from saying "ray QP". The order matters. This is because the first letter tells you the endpoint while the second letter is where the ray is aimed at (and where it goes off forever).
Answer:
No her calculations do not make sense because the area of the smaller walls together is 234 and not 244 the total square feet of the windows and doors are also wrong. She should also subtract the doors and windows from the total so she doesn't over spend on paint. Her answer is correct just the way of finding it is wrong.
Step-by-step explanation:
Walls total sqft: (2(13ft)(9ft))+(2(16ft)(9ft))=234ft²+288ft²=522ft²
Doors+Windows total sqft: ((2(20ft)+(2(15ft))=60ft²+30ft²=90ft²
Total amount of paint needed: 522ft²-90ft²=432ft²
Amount of gallons needed remains the same
Hopefully this makes sense.