A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the container in direct sunlight. The scientists observes small bubbles on the surface of the plant's leaves on days 1 and 2, but no bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be added to the water in order for the bubbles to reappear.
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1 point
carbon dioxide
oxygen gas
hydrogen gas
glucose
carbon dioxide
Which option describes a first-person point of view in a narrative text?
*
1 point
when one of the characters tells the story
describing events from the perspective of all the characters
a story told with some distance from the characters
when some of the characters show their thoughts and feelings
when one of the characters tells the story
The United States government is based on the idea of separation of powers, where each branch has its own duties along with the ability to "check" the power of other branches. What are the three branches of the U.S. Government?
*
1 point
judicial
federal
legislative
unitary
executive
legislative, executive, judicial
Sove for x: -5(6x+15) = -45
To solve for x in the equation -5(6x+15) = -45, we first need to distribute the -5:
-5(6x+15) = -45
-30x - 75 = -45
Next, add 75 to both sides of the equation to isolate the term with x:
-30x - 75 + 75 = -45 + 75
-30x = 30
Finally, divide both sides by -30 to solve for x:
x = 30 / -30
x = -1
Therefore, the solution for x in the equation -5(6x+15) = -45 is x = -1.