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erik [133]
3 years ago
14

78 * 40

Mathematics
2 answers:
kykrilka [37]3 years ago
4 0

Answer:

3120

Explanation:

Step 1: 0 multiply by 8 give 0

Step 2: 0 multiply by 7 give 0

Step 3: put the number 0 in the right side

Step 4: 4 multiply by 8 give 32

Step 5: add the number 3 to the answer we are going to get for 4 multiply by 7 which is 28+3=31

Debora [2.8K]3 years ago
3 0

Answer:

3120

Step-by-step explanation:

step 1:multiply 8 with 0 and 7 with 0

step 2:add a 0 in the end and multiply 8 with 4 . you get 32. take 2 and carry over 3. multiply 7 with 4. you get 28 . add 3 you get 31. now add. you get 3120

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Oxana [17]
Your question to that answer is irrational
7 0
3 years ago
What is the domain of the profit function P= 11w+6Z?
iren [92.7K]

Answer:

Step-by-step explanation: Its C. :)

4 0
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9,600 divided by 10 to the power of 1
DochEvi [55]

Answer:

960

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4 0
3 years ago
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Let f(x) = x+2/x+6 <br> f^-1(-6) =
GREYUIT [131]

We can explicitly find the inverse. If f^{-1}(x) is the inverse of f(x), then

f\left(f^{-1}(x)\right) = \dfrac{f^{-1}(x)+2}{f^{-1}(x)+6} = x

Solve for the inverse :

\dfrac{f^{-1}(x) + 2}{f^{-1}(x) + 6} = x

\dfrac{f^{-1}(x) + 6 - 4}{f^{-1}(x) + 6} = x

1 - \dfrac4{f^{-1}(x) + 6} = x

1 - x = \dfrac4{f^{-1}(x) + 6}

f^{-1}(x) + 6 = \dfrac4{1-x}

\implies f^{-1}(x) = \dfrac4{1-x} - 6

Then when x = -6, we have

f^{-1}(-6) = \dfrac4{1-(-6)} - 6 = \dfrac47-6 = \boxed{-\dfrac{38}7}

Alternatively, we can first solve for x such that f(x) = -6. Then taking the inverse of both sides, x = f^{-1}(-6). (The difference in this method is that we don't compute the inverse for all x.)

We have

\dfrac{x+2}{x+6} = -6

x + 2 = -6 (x + 6)

x + 2 = -6x - 36

7x = -38

\implies x = \boxed{-\dfrac{38}7}

8 0
3 years ago
If P(x) = x² + x + 1 and Q(x) = 4x² - 1, find P(6).
alexandr402 [8]
43 as you substitute 6 in place of x, and then get 36+6+1=43
6 0
3 years ago
Read 2 more answers
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