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Given tangent, a, equals, start fraction, 5, divided by, 4, end fractiontana= 4 5 and that angle aa is in quadrant i, find the exact value of cosine, acosa in simplest radical form using a rational denominator?
asked
Nov 18, 2024
Mathematics
high-school
1
answer
1
vote
127k
views
What is the refractive index of a medium if velocity of light in that medium is 2.25×10⁸ m/sec.
asked
Nov 13, 2024
Physics
high-school
1
answer
4
votes
228k
views
A sample of cerebrospinal fluid is diluted 1:100; the standard 9 squares of a hemocytometer are counted on each side for a total of 18 large squares Side 1 - 186 nucleated cells counted Side 2 - 184 nucleated
asked
Nov 2, 2024
Biology
high-school
1
answer
2
votes
162k
views
Show mathematically that two bases as a codon would not be sufficient to code all 20 known amino acids.
asked
Sep 7, 2024
Biology
high-school
1
answer
1
vote
163k
views
The endocrine system releases hormones that travel to their target organs through.
asked
Jul 15, 2024
Biology
college
1
answer
5
votes
131k
views
Write an essay about "My Daily Meal" in about 120 words.
asked
Jun 21, 2024
English
high-school
1
answer
5
votes
204k
views
What type of organism is zooplankton?
asked
Jun 1, 2024
Biology
high-school
1
answer
5
votes
88.1k
views
You have 88 grams of a radioactive kind of vanadium. If its half-life is 16 days, how much will be left after 32 days? A. 11 grams B. 22 grams C. 44 grams D. 66 grams
asked
May 1, 2024
Physics
high-school
1
answer
3
votes
12.4k
views
If sodium has an electronegativity value of 1.4, is it ionic or covalent? A. Ionic B. Covalent C. Polar covalent D. Nonpolar covalent
asked
Mar 2, 2024
Chemistry
high-school
1
answer
0
votes
162k
views
The maximum depletion width decreases with increase in the doping density in silicon substrate:
asked
Jan 5, 2024
Chemistry
high-school
1
answer
1
vote
175k
views
Can someone help me make sense of this? I have trouble with these kind of questions
asked
Dec 5, 2023
Mathematics
college
1
answer
2
votes
49.1k
views
Find the 67th term of the following arithmetic sequence.15, 22, 29, 36,
asked
Sep 3, 2023
Mathematics
college
1
answer
5
votes
89.1k
views
The try block is followed by one or more ____ blocks. a) catch b) throw c) do d0 finall
asked
Jul 10, 2023
Social Studies
high-school
1
answer
5
votes
46.1k
views
IGCSE biology name the part of the blood in which most carbon dioxide is transported
asked
Jan 21, 2023
Biology
high-school
1
answer
11
votes
217k
views
Which ordered pair is not a point on the graph of y = − 5 x + 2? A. (2, -8) B. (-2, 12) C. (0, 2) D. (-1, 6)
asked
Nov 7, 2022
Mathematics
college
1
answer
3
votes
84.5k
views
Use the function graphed on the coordinate plane below.
asked
Nov 4, 2022
Mathematics
middle-school
1
answer
8
votes
146k
views
A 15th century farmer finds a rock that looks exactly like a clamshell. What did he likely conclude about how the fossil got there?
asked
Oct 11, 2022
Biology
high-school
1
answer
16
votes
149k
views
Which method would be the best (quickest) for solving the system? 6x + 4y = -10 -6x + 5y = 1 Substitution Elimination
asked
Sep 19, 2022
Mathematics
high-school
1
answer
1
vote
1.9k
views
Name one way in which fair trade benefits famers in developing
asked
Aug 8, 2022
Geography
college
1
answer
3
votes
65.3k
views
Order -3 1/3, -3 1/6, -3.3, -3.1 from greatest to least
asked
Nov 22, 2021
Mathematics
middle-school
1
answer
2
votes
144k
views
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