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juin [17]
3 years ago
10

HELP ON #5a and #6 plz help me it’s due tomorrow plz answer and kinda explain plz help me

Mathematics
1 answer:
NeTakaya3 years ago
5 0
The answer and explanation is in the picture

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Let f(x)=4x+7 and g(x)=3x-5. find (fog)(-4)<br><br> A. -9 <br> B. -61 <br> C. -32 <br> D. -17
prohojiy [21]

Answer:

B . (fog)(-4)  = - 61

Step-by-step explanation:

Here, given  f(x) = 4 x + 7, g(x) = 3 x- 5

Now, by the COMPOSITE FUNCTION:

(f o g) (x)  = f (g(x))

Now here: )f o g) ( -4)  = f (g(-4))

<u>Simplifying for g(x) =  3 x  - 5</u>

 g(-4)  = 3 (-4) -  5 = -12 - 5  = -17

or, g (-4)  = -17

Now, <u>for f(x) = 4 x + 7 </u>

f ( g(-4))  = f ( -17) = 4 (-17) + 7

= - 68 + 7 =  - 61

or, f ( g(-4))  = - 61

Hence, (fog)(-4)  = - 61

3 0
3 years ago
A Triangle has an area of 36cm^2. The base and height are scaled by a factor of 5. What is the area of the resulting triangle?
Finger [1]

Answer:

Area of resulting triangle  will be 900 cm^2.

Step-by-step explanation:

When sides of  any polygon if scaled by a factor of k

then area is scaled by k^2

According to the above statement

therefore  here in the question since area of original triangle was 36cm^2

and both  base and height are scaled by a factor of 5.

therefore area of scaled triangle will be 5^2 times of the original

that is 25 x 36 which gives 900 cm^2

So area of resulting triangle will be 900 cm^2


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3 years ago
Need help with geometry question?
Nuetrik [128]

Answer: A, Corresponding; Vertical


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All Angles besides a Linear Pair and Same-Side Interior Angle are Congruent.

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Sam has 12 pencils in total. 
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The range of the function RK) = R +26+1 İS {25, 643. What is the function's domain?
frozen [14]

Answer:

A

Step-by-step explanation:

hope this helped! please let me know if im wrong

4 0
3 years ago
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