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Mariana [72]
3 years ago
7

Choose 1 answer:

Mathematics
1 answer:
Roman55 [17]3 years ago
7 0

Answer:

its multiply by 2

Step-by-step explanation:

the reason for this is because 5 x 2=10

10 x 2 =20

15 x 3 = 30

may i have brainliest

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Fitness connection charges a registration fee of $25 plus $9 per visit. what is the total cost that lisa will owe for 13 visits?
horrorfan [7]
T = Total cost
V = Amount of visits

T = 25 + 9v   Plug in the amount of visits
T = 25 + 9(13)   Multiply
T = 25 + 117   Add
T = 142

Lisa will owe $142 .
3 0
3 years ago
Compare Standard Deviations
Naily [24]

Answer:

1-C, 2-B, 3-A, 4-E, 5-D

Step-by-step explanation:

It is convenient to let a graphing calculator or spreadsheet compute the standard deviations for you. (Some will compute sample standard deviation; some will compute population standard deviation. It makes no difference to the ordering, as long as the same computation is used for all data sets.)

7 0
3 years ago
What is the vertex and axis of symmetry for y=4x^2-12x+9?
VLD [36.1K]

Answer:

axis of symmetry   x=3/2

vertex  (3/2, 0)

Step-by-step explanation:

to find the axis of symmetry we use h = -b/2a

where ax^2 + bx+c


h = -(-12)/2(4)

h= 12/8

h = 3/2

the axis of symmetry is x = 3/2

the x coordinate of the vertex is h x=3/2

to find k, the y coordinate of the vertex, substitute x=3/2 into the equation

y=4x^2-12x+9

y=4(3/2) ^2-12(3/2)+9

 = 4 (9/4)  - 6*3 +9

  = 9-18+9

  = 0


the vertex (3/2, 0)

4 0
3 years ago
What is 1.3 in word form?
RoseWind [281]
One and three tenths
7 0
4 years ago
(sin(pi*x)+cos(pi*y))^7=36 find the dy/dx by implicit differentiation
katrin [286]
Hello,

f(x,y)=(sin(\pi*x)+cos(\pi*y))^7 -36\\

 \dfrac{\partial f}{\partial x} =7*(sin(\pi*x)+cos(\pi*y))^6*cos(\pi*x)*\pi\\

 \dfrac{\partial f}{\partial y} =7*(sin(\pi*x)+cos(\pi*y))^6 * (-sin(\pi*y ))*\pi\\

 \dfrac{dy}{dx} =-\dfrac{\dfrac{\partial f}{\partial x}}{ \dfrac{\partial f}{\partial y}}\\\\

=-\dfrac{7*(sin(\pi*x)+cos(\pi*y))^6* cos(\pi*x)*\pi}{7*(sin(\pi*x)+cos(\pi*y))^6*(-sin(\pi*y))*\pi}\\

=\dfrac{cos(\pi*x)}{sin(\pi*y)}

 














6 0
3 years ago
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