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Elena-2011 [213]
2 years ago
10

Pls help ;cI need help on those 3 problems​

Mathematics
1 answer:
seraphim [82]2 years ago
4 0
To answer these you must know Soh Cah Toa

Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj

I’ll do #23 for you.
x = the angle
Tan (x) = 8/6 (8 is opp of ang and 6 is adj)
Then you must do the inverse
x = tan^-1 (8/6)
Then use a calculator to solve for x.
Use this system for the rest of the problems (won’t necessarily be the tangent)
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Jesse recorded the temperatures at which two oils freeze: Oil Temperature Sesame oil −6.2 °C Peanut oil 3.1 °C Which statement a
AVprozaik [17]

Answer: C. Sesame oil freezes at a lower temperature than peanut oil because −6.2 °C < 3.1 °C

Step-by-step explanation:

Given that:

Freezing point of sesame oil = - 6.2°C

Freezing point of peanut oil = 3.1°C

Comparing the two temperatures :

Freezing(when a substance turns to solid) usually occurs at low temperatures. The temperature of sesame oil(-6 2°C) is lower than that of peanut oil(3.1°C).

Hence, it can be concluded that Sesame oil freezes at lower temperature than peanut oil.

Mathematically,

-6.2°C < 3.1°C

6 0
3 years ago
Read 2 more answers
Factorize 2x^4-7x^3-13x^2+63x-45 using factor theorem.
zheka24 [161]
Find the possible rational roots and use synthetic division to find the first zero.
I chose x=1 (which represents the factor "x-1")

1║2  -7  -13    63  -45
  ║     2    -5  -18    45
    2  -5  -18    45    0
(x-1) is a factor, (2x³ - 5x² - 18x + 45) is the other factor.

Use synthetic division on the decomposed polynomial to find the next zero.
I chose x = 3 (which represents the factor "x-3")

3║2  -5  -18    45 
  ║     6     3   -45   
    2   1  -15     0   

Using synthetic division, we discovered that (x-1), (x-3), & (2x² + x -15) are factors.  Take the new decomposed polynomial (2x² + x -15) and find the last two factors using any method.

Final Answer: (x-1)(x-3)(x+3)(2x-5)




8 0
3 years ago
If a line has a slope of -4 and a u intercept of 1, which of the following is it's graph?
3241004551 [841]
Well. I can't see the picture. But it would be decreasing at a rate of 4 so pick a point on the any line move over to the right one, then down four. And for the y intercept the line would intersect the y axis at positive one. Sorry if that's confusing
3 0
3 years ago
8.3 is equal to <br> tenths<br> hundredths​
irakobra [83]

Answer:  

83 Tenths  

830 hundreths  

Step-by-step explanation:  

8.30=8.3 Remove the points and they will give you how many tenths or hundreths

(hope this helps can i plz have brainlist :D hehe)

6 0
3 years ago
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Can someone please help me with this?
Norma-Jean [14]

Answer:

i cant see that

Step-by-step explanation:

3 0
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