Choose the best answer. If necessary, use the paper you were given.

1 answer:

5 0

In this question, all you have to do is substitute 12 into all the places where it says x in the question.

Therefore:
g(12) = 3(12 + 8) = 3(20) = 60

So, g(12) = 60

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At which root does the graph of f(x)=(x+4)^6(x+7)^5 cross the x axis

jarptica [38.1K]

Answer:

-7.

Step-by-step explanation:

At the point -4 the graph just touches the x axis ( as its an even power) but at x = -7 it crosses the x axis ( because of the odd power 5).

The graph rises from the left and pass through the x axis at (-7,0).

7 0

3 years ago

Find sin(a+b) if tan(a)=7/24 where a is in the third quadrant

ludmilkaskok [199]

The complete question in the attached figure

we have that
tan a=7/24 a----> III quadrant
cos b=-12/13 b----> II quadrant
sin (a+b)=?

we know that
sin(a + b) = sin(a)cos(b) + cos(a)sin(b<span>)
</span>
step 1
find sin b
sin²b+cos²b=1------> sin²b=1-cos²b----> 1-(144/169)---> 25/169
sin b=5/13------> is positive because b belong to the II quadrant

step 2
Find sin a and cos a
tan a=7/24
tan a=sin a /cos a-------> sin a=tan a*cos a-----> sin a=(7/24)*cos a
sin a=(7/24)*cos a------> sin²a=(49/576)*cos²a-----> equation 1
sin²a=1-cos²a------> equation 2
equals 1 and 2
(49/576)*cos²a=1-cos²a---> cos²a*[1+(49/576)]=1----> cos²a*[625/576]=1
cos²a=576/625------> cos a=-24/25----> is negative because a belong to III quadrant
cos a=-24/25
sin²a=1-cos²a-----> 1-(576/625)----> sin²a=49/625
sin a=-7/25-----> is negative because a belong to III quadrant

step 3
find sin (a+b)
sin(a + b) = sin(a)cos(b) + cos(a)sin(b)
sin a=-7/25
cos a=-24/25
sin b=5/13
cos b=-12/13
so
sin (a+b)=[-7/25]*[-12/13]+[-24/25]*[5/13]----> [84/325]+[-120/325]
sin (a+b)=-36/325

the answer is
sin (a+b)=-36/325

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2 years ago

At what rate percent per annum will rs 1625 amount to rs 2080 in 31/2 years

melamori03 [73]

Answer:

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3 years ago

Find the Perimeter of the figure below, composed of a rectangle and two semicircles. Round to the nearest tenths place.

NISA [10]

281.25 is the answer i think

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2 years ago

Which types of dilation are the given scale factors?

Drupady [299]

Answer:

Tbh Im new to this.

Step-by-step explanation:

i think -5/4 is con

3/8 is expansion

-1/2 is con

0.5 is con

I may be very wrong and im sorry but i tried

3 0

2 years ago