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AleksandrR [38]
3 years ago
8

Find the exponential function f(x)=Ca^x whose graph goes through the points (0,4) and (3,32).

Mathematics
1 answer:
kogti [31]3 years ago
8 0
We are given the exponential expression f(x) = Ca^x that should pass through the points (0,4) and (3,32). In this case, we first substitute the first point, (0,4) to the function to yield 4 = Ca ^0; hence Ca is equal to 4. The final expression hence is f(x) = 4^x
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∠ and ∠ are complementary angles. If ∠ = (12x - 3)° and ∠ = (7x - 2)°, find the<br> ∠.
Lana71 [14]

Answer:

57 °

Step-by-step explanation:

Complementary angles = 90 °

Since, Your angle don't have ∠ [  ] Then Let let "C" and "y"

Thurs, C = 12x- 3  and y = 7x - 2

It is given that angles r and s are complementary  angles. Two angles are complementary  if they add up to 90 degrees. This means the sum of measures of angle r and angle s must be 90 degrees. So,

c + y = 90

12x - 3 + 7x - 2 = 90

19x - 5 = 90

19x = 95

x = 95/19

x = 5

Using the value of x in expression or r, we get:

c = 12x - 3 = 12(5) - 3 = 60 -3 = 57 degrees.

So measure of angle c is 57 degrees.

Hence, the ∠ is 57 °

[RevyBreeze]

3 0
2 years ago
Let f(x)=⌊x/2⌋. We learned that the floor and the ceiling functions are NOT invertible, but we also learned about the set of pre
romanna [79]

Answer:

Value of f^{-1}(\{4\}) is 8.

Step-by-step explanation:

Given function,

f(x)=\big[\frac{x}{2}\big]

we have to find : f^{-1}(\{4\})

It is known that,

[x]=the greatest integer <=x

Then,

f(x)=\big[\frac{x}{2}\big]

\implies x=f^{-1}(\big[\frac{x}{2}\big])

Taking x=8 we get,

f^{-1}(\big[\frac{x}{2}\big])=x

\implies f^{-1}(\big[\frac{8}{2}\big])=8

\implies f^{-1}([4])=8

\implies f^{-1}(\{4\})=8                                          ( Since [4]=4 )

Hence the value of f^{-1}(\{4\}) is 8.

7 0
3 years ago
(V+5)(-1/9)=6 how do u solve this
Brrunno [24]

Answer:

v= -59

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : (v+5)*(-1/9)-(6)=0

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    (v+5)*(-1/9)-(6)=0

Step by step solution :

STEP

1

:

           1

Simplify   —

           9

Equation at the end of step

1

:

                  1      

 ((v + 5) • (0 -  —)) -  6  = 0

                  9      

STEP

2

:

Equation at the end of step 2

 (-v - 5)    

 ———————— -  6  = 0

    9        

STEP

3

:

Rewriting the whole as an Equivalent Fraction

3.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  9  as the denominator :

        6     6 • 9

   6 =  —  =  —————

        1       9  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

STEP

4

:

Pulling out like terms

4.1     Pull out like factors :

  -v - 5  =   -1 • (v + 5)

Adding fractions that have a common denominator :

4.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(-v-5) - (6 • 9)     -v - 59

————————————————  =  ———————

       9                9  

STEP

5

:

Pulling out like terms :

5.1     Pull out like factors :

  -v - 59  =   -1 • (v + 59)

Equation at the end of step

5

:

 -v - 59

 ———————  = 0

    9  

STEP

6

:

When a fraction equals zero :

6.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 -v-59

 ————— • 9 = 0 • 9

   9  

Now, on the left hand side, the  9  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  -v-59  = 0

Solving a Single Variable Equation:

6.2      Solve  :    -v-59 = 0

Add  59  to both sides of the equation :

                     -v = 59

Multiply both sides of the equation by (-1) :  v = -59

5 0
3 years ago
35/56 Fashion that are equivalent
Elena-2011 [213]

Answer:

5/8

Step-by-step explanation:

Simplify the following:

35/56

The gcd of 35 and 56 is 7, so 35/56 = (7×5)/(7×8) = 7/7×5/8 = 5/8:

Answer: |

| 5/8

7 0
3 years ago
The picture has the question
baherus [9]

Answer:

-26981

Step-by-step explanation:

All you have to do is fill in -4 in place of all of the x in the equation and then solve. I got the answer -26981

HOPE THIS HELPS AND PLS GIVE BRAINLIEST!

6 0
3 years ago
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