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vodka [1.7K]
3 years ago
5

Find the value of x.

Mathematics
2 answers:
Wewaii [24]3 years ago
7 0

Answer:

prob 27

Step-by-step explanation:

kondaur [170]3 years ago
7 0
The answer is most likely 27
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If F(x) = 4%-3, which of the following is the inverse of F(x)?
Brums [2.3K]

I assume you meant to type x for %.

If not, basically back-substitute at the end of the solution.

F(x) = 4x - 3

Let y = F(x)

y = 4x - 3

x = 4y - 3

x - 3 = 4y

(x - 3)/4 = y

Let y = F^(-1)x

F^(-1)x = (x - 3)/4

If you want % in your answer, just replace x for % in your answer.

8 0
3 years ago
What is the equation of the line that passes through the point (-2, 7) and has a slope of zero
lorasvet [3.4K]

Answer:

y = 7 is the equation of the line that passes through the point ( -2, 7 ) and has a slope of zero.

Step-by-step explanation:

Given:

Let,

A ≡ ( x1 , y1 ) ≡ ( -2, 7 )

Slope = m = 0

To Find :

Equation of Line:

Solution:

Formula for , equation of a line passing through a point (  x1 , y1 ) and having a slope m is given by

(y - y_{1})=m(x-x_{1})

Now substituting the values of x1 = -2 and y1 = 7 and slope m = 0 we get,

y-7=0\times(x--2) \\y-7=0\times (x+2)\\y-7=0\\\therefore y=7

Which is the required equation of a line passing through the point ( -2, 7 ) and slope zero

6 0
3 years ago
For every $3.00 donated to a certain charity by Club A, $1.25 was donated by Club B. If the combined total amount donated to the
shtirl [24]

Answer:

D, $18,000.00

Step-by-step explanation:

Club A

$3 x is donated where x is the number of donations

Club B

$1.25x  is donated where x is the number of donations

The total of donations is 25500.00

Add the donations  times the dollar amount  for Club A and Club B and you get the total amount donated

$3x +$1.25x = 25500.00

Combine like terms

4.25x = 25500.00

Divide by 4.25 on each side

4.25/4.25x = 25500.00/4.25

x =6000

There were 6000 donations

We want to find Club A donation amount

$3 x is the amount donated

3*6000 = 18000

4 0
2 years ago
Read 2 more answers
Calculate the length of the circumference of a circle with a diameter of 14cm (2dp)
kondaur [170]
C= 2 (pi) r

d= 14 cm

d= 2r 

r= 7 cm

c= 2 (pi) (7cm)
c= 43.98

hope that helps

3 0
2 years ago
Susan can mow 1/4 of a yard in 1/5 of an hour.At this rate,how many yards can she mow in one hour? Express answer as a decimal.
schepotkina [342]
Find the unit rate:

1/4 yd       1(5)
---------- = -------- = 5/4 yards, or 1 1/4 yards, in one hour.  This is 1.25 yards.
1/5 hr        4(1)
3 0
2 years ago
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