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adoni [48]
3 years ago
7

Solve each of the following quadratic equations (x+7)(x+1)=0

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0
Solve each equation for x by finding a, b, and c of the quadratic then applying the quadratic formula. 
x=-1, -7
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Neveah has created the function of f(x) = 2x+4/3 to represent the growth of her hair, where x represents the number of months si
Andre45 [30]
F(x)=2x+4/3

Replace f(x) by y:
y=2x+4/3

Solving for x:
y-4/3=2x+4/3-4/3

Subtracting the two terms on the left side of the equation:
(3y-4)/3=2x

Dividing both sides of the equation by 2:
[(3y-4)/3]/2=2x/2
[(3y-4)/3]*(1/2)=x
[(3y-4)*1]/[(3)*(2)]=x
(3y-4)/6=x
x=(3y-4)/6

Replace "x" by "f^(-1) (x)" (inverse function) and "y" by "x":
f^(-1) (x) = (3x-4)/6   Inverse function

Then, for x=6 
f^(-1) (6) = [ 3(6)-4]/6
f^(-1) (6) = (18-4)/6
f^(-1) (6)= 14/6
f^(-1) (6) = 7/3

Her hair will have grown 6 after 7/3 = 2.33 months


3 0
3 years ago
Gary made 5 baskets than Susan this season bill made 3 less then twice as many baskets as Susan. Together, all three made 42 bas
Nezavi [6.7K]

Answer:Gary made 15 baskets.

Susan made 10 baskets.

Bill made 17 baskets.

Step-by-step explanation:

Let x represent the number of baskets that Gary made.

Let y represent the number of baskets that Susan made.

Let z represent the number of baskets that Bill made.

Gary made 5 baskets than Susan this season. This means that

x = y + 5

Bill made 3 less than twice as many baskets as Susan. This means that

z = 2y - 3

Together, all three made 42 baskets. This means that

x + y + z = 42 - - - - - - - - - - 1

Substituting x = y + 5 and z = 2y - 3 into equation 1, it becomes

y + 5 + y + 2y - 3 = 42

4y + 2 = 42

4y = 42 - 2 = 40

y = 40/4 = 10

x = y + 5 = 10 + 5

x = 15

z = 2y - 3 = 2 × 10 - 3

z = 20 - 3 = 17

3 0
3 years ago
Help me due tomorrow!! Solve for x
lions [1.4K]
I’m in 11th. I feel stupid
4 0
3 years ago
Read 2 more answers
(7, -3) and (9, -5) find the slope
anzhelika [568]
The slope is -2. You find this by putting the rise between the two points over the run.
8 0
3 years ago
What is the midline of the function?<br> A. Y=0<br> B. Y=2<br> C. Y=1<br> D. Y=4pi
navik [9.2K]

Answer:

C

Step-by-step explanation:

The trig equation

a \sin(bx)  + d

where d represent the midline.

D is represented by positive 1 so y=1 is the midline.

4 0
2 years ago
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