Answer: 1/10
Step-by-step explanation:
At the end of the day, she still had 2/5 of the book to read. Which meant that she had read 3/5 of the book. Since she read 1/2 of the book in the day, we would read 3/5 - 1/2 = 6/10 - 5/10 = 1/10 of the book at night.
The range of x is:<span>10≤x≤50</span>
The range of C is:<span><span>60≤C≤300</span></span>
Answer:
the answer should be C.
Step-by-step explanation:
When two straight lines intersect each other at 90˚ or are perpendicular to each other at the intersection, they form the right angle. A right angle is represented by the symbol ∟.
Answer: My teacher posted a review, and this question was on it. In the answer key, it said that:
A= 2
B= 1335
C= 0
This confused me a lot and I'm not quite sure how she got that answer.
The answer choice which sin(x + y) - sin(x - y) simplifies to is; 2(cos x)(sin y).
<h3>
Which of the following expressions does sin(x + y) - sin(x - y) simplify to?</h3>
It follows from the task content that the expression given in the task content can be simplified by trigonometric identities as follows;
sin(x + y) - sin(x - y) = sinxcosy + cosxsiny - (sinxcosy -cosxsiny)
= 2cosxsiny.
Read more on trigonometric identities;
brainly.com/question/7331447
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