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Jobisdone [24]
2 years ago
14

How can fact families and multiplication facts help you divide

Mathematics
2 answers:
k0ka [10]2 years ago
6 0
You know ur fact family and multiplication
5x10=50
10x5=50
when it comes to division
50/10=5
u already know the answer
mrs_skeptik [129]2 years ago
5 0

Answer:

Fact families and multiplication helps to divide . In any division problem, we use its divisor and check whether we get the dividend by multiplying a number to divisior.

For example:- Consider a division problem 40\div5

Here, Dividend= 40 and divisor = 5

Now, search the fact families of 5 which give 40 as an answer, we get

5\times8=40\ or\ 8\times5=40

\\\Rightarrow\ 40\div5=8

we can check our answer by multiplying divisor to the answer

5\times8=40

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Im not getting exact answers but the closest was D. What i did was i graphed the points and i found the slope and then i found the y intercept. so the equation was y = 2/3x + .67. and i plugged in the points. so i would say the answer is D. because since i rounded the .67 it wasn't exact but it was close

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3 years ago
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Which Of the following pairs of functions are inverse of each other?
damaskus [11]

One way is to solve for the inverse of the first function

remember, to solve, replace f(x) or g(x) with y, switch x and y, solve for y and replace it with f^{-1} (x)

A.

f(x)=x/2+8\\y=x/2+8\\x=y/2+8\\x-8=y/2

2x-16=y

f^{-1}=2x-16

nope, not A

<h3>What is the inverse function?</h3>

The inverse function of a function f is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is denoted by {\displaystyle f^{-1}.}

B.

f(x)=3x^3+16\\y=3x^3+16x=3y^3+16\\x-16=3y^3\\(x-16)/3=y^3

f^{-1}(x)=\sqrt[3]{((x-16)/3)}

nope, not the same

not B

C.

f(x)=18/x-9\\y=18/x-9\\x=18/y-9\\x+9=18/y\\y(x+9)=18\\y=18/(x+9)\\f^{-1}(x)=18/(x+9)

The correct, answer is C.

To learn more about the inverse function visit:

brainly.com/question/2972832

#SPJ1

5 0
1 year ago
Cos4theta+cos2theta/ cos4theta-cos2theta= _____
vovangra [49]

\bf \textit{Sum to Product Identities} \\\\ cos(\alpha)+cos(\beta)=2cos\left(\cfrac{\alpha+\beta}{2}\right)cos\left(\cfrac{\alpha-\beta}{2}\right) \\\\\\ cos(\alpha)-cos(\beta)=-2sin\left(\cfrac{\alpha+\beta}{2}\right)sin\left(\cfrac{\alpha-\beta}{2}\right) \\\\[-0.35em] \rule{34em}{0.25pt}

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8 0
3 years ago
The height of a boulder falling off a 500 meter cliff can be modeled using a quadratic equation.
Alona [7]

Answer:

The answer is t=4 s

Step-by-step explanation:

4 0
2 years ago
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Digiron [165]

Answer:

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Step-by-step explanation:

For the answer you need to know bout equivalent fractions

TO find equivalent fractions you have to multiply the numerator and denominator by the same amount

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Therefore \frac{30}{40} is an equivalent fraction

8 0
2 years ago
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