3x+2(5x-3)=7
with steps

Answer:

The inverse is f^-1 (x) = 6.6x + 4

Factored is 0.15 (x - 4)

I hope this helps

if you could, feel free to mark me Brainliest it would be much appreciated :D

x + 11 ft

Step-by-step explanation:

x² + 22x + 121 ft² = area of square

x² + 11x + 11x + 121 ft² = side²

x(x + 11) + 11(x + 11) ft² = side²

(x + 11)(x + 11) ft² = side²

(x + 11)² ft² = side²

x + 11 ft = side²

Answer:

y= 9/4x+9

Step-by-step explanation:

you write the 9/4 as a fraction it looks a little confusing I don't have an actual fraction symbol so it's 9/4 then x plus 9 :)

Answer:

Step-by-step explanation:

18 is negative so add 18 to both sides

2x=8

so the answer would be 4 because

4 x 2= positive 8

hope that helped!!

Answer:

basically just multiply the fractions by a common number until you have whole numbers, then solve like normal

Step-by-step explanation:

Answer:

Hi there!

The domain is:

20<=x<=40

Step-by-step explanation:

18$ per hour

x is hours worked

The domain is:

20<=x<=40

This says that:

x=>20

x<=40

Which fits the problem!

Hope this helps

Let the smaller piece be x .

Then the larger angle will be = 3x

An equation to find the length of each of the two pieces :-

[tex]x + 3x = 112[/tex]

[tex]4x = 112[/tex]

[tex]x = \frac{112}{4} [/tex]

[tex]x = 28[/tex]

Which means :-

Length of the shorter piece = 28 inches

Length of the larger piece = 28 × 3 = 84 inches

Therefore , the length of the shorter piece = 28 inches .

Answer:

39

Step-by-step explanation:

g(-5)=-7×(-5)+4=35+4=39

Answer:

g(-5) = 39

Step-by-step explanation:

g(x) = -7x + 4

g(-5) = - 7* (-5) + 4

        = 35 + 4

       = 39

Answer:

$975.13

Step-by-step explanation:

Answer:

1 mile: 4 minutes

Step-by-step explanation:

This problem can be expressed with a simple ratio: 2:8

Now, thankfully the numbers are even so we just need to simplify the ratio to get our answer. Ratios work like fractions in that manner. So we just need to divide both sides by 2 to get the _:4 result.

This gives us a ratio of 1:4. Therefore, Lin travelled 1 mile in 4 minutes.

Answer:

f(x)= (x+2)²

= x²+4+2x

then f(3) = 3²+4+2*3

= 9+4+6

add up the sum and here's your ans

Answer:

81°

Step-by-step explanation:

add both and subtract answer from 180

72+27=99

180-99=81

all 3 angles in a triangle always add up to 180°

hope this helps <3

Answer:

$150

Step-by-step explanation:

A garden table and a bench together will cost $600. The actual values of the garden table and the bend are not given, but we know that the cost of a garden table will cost three times more than the bench.

Let [tex]x[/tex] = the cost of the bench.

Again, since the cost of the garden table is three times the cost of the bench ([tex]x[/tex]), we can represent the garden table as three times [tex]x[/tex] ([tex]3x[/tex]). These two terms will equal $600 when added, so let's formulate an equation:

[tex]3x+x=600[/tex]

Combine like terms:

[tex]4x=600[/tex]

Divide both sides of the equation by the coefficient of [tex]x[/tex], which is [tex]4[/tex]:

[tex]x=150[/tex]

_

Check your work by substituting [tex]150[/tex] into the original equation:

[tex]3(150)+(150)=600[/tex]

[tex]450+150=600[/tex]

[tex]600=600[/tex]

Our answer is correct!

Answer:Since both terms are perfect squares, factor using the difference of squares formula,

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

a

2

-

b

2

=

(

a

+

b

)

(

a

-

b

)

where

a

=

2

x

a

=

2

x

and

b

=

3

b

=

3

.

(

2

x

+

3

)

(

2

x

−

3

)

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The formula matches up with the sequence. If you want to find f2 you look to f1 which is 8. Then you subtract by 2. This means to get f1, f0 would have to be 10 because 10-2 is 8.

Answer:

Step-by-step explanation:

you have to solve for x i think

Answer: SOLVE FOR X !

Step-by-step explanation:

Answer:

Thank you ☺️☺️

Answer:

50

Step-by-step explanation:

Because 84% out of 50 is 42

Answer:

the greatest common factor is B - 1

Step-by-step explanation:

not 5 because 85 doesn't end with 0 or 5

not 3 because 5+0 doesn't equal a multiple of 3

not 2 because 45 is odd

not 0 because that's never an answer

Answer:

Step-by-step explanation:

3x > 15         2x > 12        x + 1 < 8             7x < 42

/3     /3        /2     /2            -1     -1             /7     /7

x > 5              x  > 6              x < 7                x < 6

Answer:

[tex]y-0=-7(x-4)[/tex]

Step-by-step explanation:

Equation of a line

The point-slope form of the equation of a line is:

[tex]y-k=m(x-h)[/tex]

Where m is the slope and (h,k) is a point through which the line passes.

The line passes through the point (4,0) and has a slope of -7. The equation of the line is:

[tex]y-0=-7(x-4)[/tex]

This is the point-slope form of the line.

Step-by-step explanation:

Here is Slope-Intercept Form for a line: y=mx+b

m is the slope

b is the y intercept

The y intercept is basically the point on the y axis where the line touches.

I will do #3 for you.

Let's first look for the y intercept. We can see that the line touches the y axis at -4, so that's it.

Let's put it into our equation, plugging in -4 for b. This is what we have so far: y=mx-4

To complete this equation, we still need to find the slope, m.

To find it, look at the point where the y intercept is, and count how many units you need to go up or down the y axis, and then right or left the x axis to get to another point on the line. The slope is equal to the change in y ÷ the change in x.

So we see that there's another point on (-3, -2), so let's try to get there from the y intercept.

We need to move two units up and 3 to the left.

In terms of y, we went up +2, and in terms of x, we went down -3

So our slope is 2/-3 or -2/3.

Now that we have our slope (m) and y intercept (b), we can plug it into out Slope-Intercept Equation, plugging in -2/3 for m:

y=-2/3x-4.

We don't need to find x or y. This is our answer for 3. Using the same method, you should be able to find the equations for the rest of the graphs. Good luck.

Answer:

The answer is 70

Step-by-step explanation:

Answer:

[tex]\Large \boxed{\sf 70}[/tex]

Step-by-step explanation:

a. Substitute d = 500 in the formula

[tex]\displaystyle s=\sqrt{9.8 \times 500} =70[/tex]

b. As the depth decreases, the speed of the tsunami decreases because both quantities are directly proportional.

Answer:

r=-15/4

Step-by-step explanation:

Answer:

yes, these ratios are proportional.

Step-by-step explanation:

yes they are! proportional ratios are like equivalent fractions.

10/12 is equal to 5/6

15/18 is also equal to 5/6

Answer:

1/5

Step-by-step explanation:

To find the slope between two points, we use the formula

m = ( y2-y1)/(x2-x1)

    = ( 6-4)/(4 - -6)

    = ( 6-4)/(4+6)

    = 2/10

     = 1/5

Answer:

f − 1 (x ) = x/6 + 5/ 6

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

The answer should be a I hope this helps