Answer:
Zn(NO3)2 +Cu
Explanation:
Replacement reaction is a type of chemical reaction in which an element react with a compound and take the place of another element in that compound.
Zn is more reactive than Cu, therefore Zn replaces cu from CU(NO3)2 to form Zn(NO3)2 +Cu
The values for the function y= cos 4(x-pi) are;
- Amplitude = 1
- Period = π/2
- Horizontal (phase) shift = π
- units Vertical shift = 0 units
<h3>Cosine functions and Properties</h3>
It follows from comparison with the traditional cosine function;
- Amplitude is usually the coefficient of the cos function and hence is, 1 in this case.
- The period, T from the function given is; T =π/2
- The horizontal phase shift is obtained by comparison as; pi.
- Ultimately, the vertical shift is 0 units as there's no y-intercept.
Read more on cosine functions;
brainly.com/question/17075439
Answer:
Student would most likely be eligible to receive college credit for a CLEP exam :- <u>A student who took a CLEP exam to earn credit for professional</u><u> </u><u>experience</u><u> </u><u>.</u>
Explanation:
<h3>Hope this helps you !!</h3>
Answer:
a.) 4 : 9
b.) 16 : 81
Explanation:
a.) Ratio of perimeter will still be
4 : 9
b.) The two similar triangles ΔABC and ΔDEF as shown from the attached figures. That is
AB/DE = AC/DF = BC/EF
It is apparent that ΔAPB and ΔDEQ are also similar as all respective angles are equal. Hence,
AB/DE = AP/DQ = BP/EQ
Moreso ΔABC = 1/2 × BC × AP and ΔDEF = 1/2 × EF × DQ and
ΔAPB/ΔDEQ = BC/EF × AP/DQ
But
AP/DQ = AB/DE = BC/EF
and hence
ΔAPB/ΔDEQ = BC/EF × BC/EF
= BC^2/EF^2 and as
BC/EF = AC/DF = AB/DE
ΔAPB/ΔDEQ = AC^2/DF^2 = BC^2/EF^2
= AB^2/DE^2
Hence if sides of two similar triangles are in the ratio a:b, their areas are in the proportion a^2:b^2
As in given case sides are in the ratio of 4:9.
ratio of their areas is 4^2:9^2 or 16:81.