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saveliy_v [14]
3 years ago
10

Please help!! I have no idea!!

Mathematics
1 answer:
MAXImum [283]3 years ago
4 0
If sinα=cosß  it means that ß=90-α.  This also means that α+ß=90 so we can say:

4k-22+6k-13=90

10k-35=90

10k=125

k=12.5°

...

The above identity comes up a lot, and is one worth committing to memory for sure.

sinα=cos(90-α) or vice versa cosα=sin(90-α)
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PLEASE HELP I PUT THE PROBLEM AS A PICTURE PLEASE ANSWER WILL GIVE 30 POINTS SHOW WORK
dem82 [27]

Answer:

\huge\boxed{9}

Step-by-step explanation:

\sf (2^8 * 3^{-5} * 6^0)^{-2 } (\frac{3^{-2}}{2^3} )^4*2^{28}

Rule of exponents a^0 = 1 , 1/a^m = a^{-m}

=> \sf 2^{8*-2} * 3 ^{-5*-2} * 3 ^{-2}* 2^{-3*4} * 2^{28}

=> \sf 2 ^ {-16} * 3^{10} * 3^{-8} * 2 ^{-12}* 2^{28}

Combining same bases

=> \sf 2 ^ {-16} * 2 ^{-12}* 2^{28}* 3^{10} * 3^{-8}

When bases are same , powers are to be added

=> \sf 2 ^{-16-12+28} * 3^{10-8}

=> \sf 2^{-28+28} * 3^2

=> \sf 2^0 * 3^2

=> \sf 3^2

=> 9

8 0
3 years ago
The points (-1,-6) and (5, a) fall on a line with a slope of 8. What is the value of a ?
erica [24]
The answer will be : -8
4 0
3 years ago
4.8 x 10 to the 8th power divided by 1.2 x 10 to the 4th power times 2.2 x 10 to the negative 8th power
Masteriza [31]
(4.8*10^8)/(1.2*10^4)2.2*10^-8=11/<span>12500</span>
I hope this helps
6 0
3 years ago
Find the measure of each interior angle
diamong [38]
\bf \textit{sum of all interior angles of a polygon}\\\\&#10;180(n-2)\quad &#10;\begin{cases}&#10;n=\textit{number of sides}\\&#10;---------\\&#10;n=10&#10;\end{cases}\implies 180(10-2)\implies 1440\\\\&#10;-------------------------------\\\\&#10;\begin{array}{lclll}&#10;&x + 5\\&x + 10\\&x + 20\\&x + 30\\&x + 35\\&x + 40\\&x + 60\\&x + 70\\&x + 80\\+&x + 90\\&#10;&----\\&#10;&10x+440&#10;\end{array}\implies &#10;\begin{array}{llll}&#10;10x+440=1440&#10;\\\\\\&#10;10x=1000&#10;\\\\\\&#10;x=\cfrac{1000}{10}\implies x=100&#10;\end{array}

so.. to get every angle, simply plug in 10 for "x" for each.
3 0
2 years ago
PLEASE HELP IS THIS RIGHT??????????AND EXPLAIN PLZZ
Anit [1.1K]
Add like terms

-4x+x=-3x
6-2=4

So the simplified term is 4-3x
6 0
3 years ago
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