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ELEN [110]
2 years ago
5

Can someone plz help

Mathematics
2 answers:
AVprozaik [17]2 years ago
7 0

Answer:

b is right answer 225 in saqu

8090 [49]2 years ago
6 0
Area of a square is l x w=9x9=81
Area of a triangle is 1/2(bxh)=1/2(9x7)=31.5
As there r 4 triangles, multiply 31.5 by 4 to get the tot surface area of the triangles as 126.
Now add the square area to the triangles area for the total surface area.
126+81=207
D is the answer
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I am studying for a Calculus test and have the answers for the study guide but I'm having trouble with problems 2, 3, 4 (finding
Mariulka [41]
#2) Use quotient rule
\frac{f'g - fg'}{g^2}
Remember for solving log equations:
e^{ln x} = x

#3) Derivative of tan = sec^2 = 1/cos^2
Domain of tan is [-pi/2, pi/2], only consider x values in that domain.

#4 Use Quotient rule

#9  Use double angle identity for tan
tan(2x) = \frac{2tan x}{1-tan^2 x}
This way you can rewrite tan(pi/2) in terms of tan(pi/4).
Next use L'hopitals rule, which says the limit of indeterminate form(0/0) equals limit of quotient of derivatives of top/bottom of fraction.

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4 0
3 years ago
Solve the equation sine Ф=0.6792 for 0°≤Ф≤360
Sergio [31]

Answer:

42.78⁹, 137.22⁹.

Step-by-step explanation:

sine Ф=0.6792

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The sine is also positive in the second quadrant so the second solutio is

180 - 42.78

= 137.33 degres.

3 0
3 years ago
Which decimal number is the smallest 1.001 1.1 1.01 1.011
ddd [48]
1.001 is the smallest :)))
3 0
3 years ago
If mc022-1.j pg and mc022-2.j pg, what is the value of (f – g)(144)? –84 –60 0 48
Mashutka [201]

Answer:

0

Step-by-step explanation:

f(x) = √(x) + 12

g(x) = 2√(x)

(f-g)(x) = √(x) + 12 - 2√(x)

(f-g)(x) = 12 - √(x)

if x = 144

(f-g)(144) = 12 - √(144) = 12 - 12 = 0

5 0
3 years ago
Read 2 more answers
Use substitution method &amp; show your work.<br>y = x^2 + 3x - 1<br>4x + 1 = y
irina1246 [14]
4x + 1 = x^2 + 3x - 1
4x = x^2 + 3x - 2
0 = x^2 -x - 2
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0 = (x - 1)^2 - 3
3 = (x - 1)^2
sqrt 3=(x-1) and (-(x-1))
x = 1+sqrt 3 and 1-sqrt 3
sqrt means square root
7 0
3 years ago
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