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Law Incorporation [45]
3 years ago
8

Part of a cheerleading routine is throwing a flyer straight up and catching her on the way down. The flyer begins this move with

her center of gravity 4 feet above the ground. She is thrown with an initial vertical velocity of 30 feet per second.
Mathematics
2 answers:
o-na [289]3 years ago
6 0
The formula would be
y=4 + 30t -16t^2
Her maximum height is when the velocity is zero.  so V = 30 -32t  0 = 30 -32t  t=15/16 seconds.


Eva8 [605]3 years ago
5 0
What is the rest of the question?
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How can i rewrite that with exponents instead of repeated multiplication
Montano1993 [528]

Answer:

10^12

Step-by-step explanation:

Add the exponents when you multiply numbers with exponents

8 0
2 years ago
Let x be the amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train. Suppose that the d
babymother [125]

Answer:

a) P (x is less than 11 minutes) =  0.55

P (x is more than 14 minutes) = 0.3

b) P (x is between 8 and 13 minutes) = 0.25

c)  P(x < c) =0.8 is 0.05 x c = 0.8

Step-by-step explanation:

a) P (x is less than 11 minutes) = 11 x 0.05

                                                 = 0.55

P (x is more than 14 minutes) = 0.05 x (20 - 14)

                                                = 0.05 x 6

                                                = 0.3

b) P (x is between 8 and 13 minutes) = 0.05 x (13 -8)

                                                            = 0.05 x 5

                                                             = 0.25

c)  P(x < c) =0.8

The area between 0 and c is 0.8

Hence,

0.05 x c = 0.8

3 0
3 years ago
Read 2 more answers
= 8<br> 3x 5<br> +<br> 4<br> 2<br> 3х y<br> 2 2<br> +<br> ІІ<br> -5
tester [92]

Answer:

Somebody please answer this

Step-by-step explanation:

3 0
3 years ago
9x+2y-27z=-155 -11x-y+37z=208 19x+6y-52z=-304
Paladinen [302]

Answer:

(x,y,z)=( -2, -1 ,5)

Step-by-step explanation:

9x+2y-27z=-155                                                        (1)

-11x-y+37z=208                                                        (2)

19x+6y-52z=-304                                                     (3)

(1) *3   ;(2) *6     ;(3)*1, you have

27x+6y-81z=-465                                                      (1)

-66x-6y+222z=1248                                                 (2)

19z+6y-52z=-304                                                      (3)


(1) +(2), you have

-39x+141z= 783                                                       (4)

(4) /3, you have

-13x +47z=261                                                          (4)


(2) +(3), you have

-47x+170z=944                                                       (5)


From ( 4) and (5), you have equations

-13x +47z=261                                                         (4)

 -47x+170z=944                                                       (5)


(4)*(-47);    (5)*13,  you have

611x-2209z=-12,267                                              (4)

-611x+2210z=12,272                                              (5)


(4)+(5), you have

z=5

Replace z=5 in (4), you have

611x- 2209*5=-12,267

611x- 11,045 =-12,267

611x=-1222

x= -2

Replace x=-2, z=5 in (1) , you have

9*(-2) +2y -27*5=-155

-18+2y-135=-155

-18+2y=-20

2y=-2

y=-1

Result (x,y,z)=( -2, -1 ,5)









3 0
3 years ago
Graph each equation rewrite in slope-intercept form first if necessary.Y=-1/3x+4
kati45 [8]

To graph the linear equation, follow the steps below.

Step 01: Find one point of the line.

To do it, choose a x-value and find its corresponding y-value.

Let's choose x = 0.

Substituting x in the equation to find y:

\begin{gathered} y=-\frac{1}{3}x+4 \\ y=-\frac{1}{3}*0+4 \\ y=0+4 \\ y=4 \end{gathered}

First point: (0, 4).

Step 02: Find another point of the line.

Let's choose x = 3.

Substituting x in the equation to find y:

\begin{gathered} y=-\frac{1}{3}*3+4 \\ y=-\frac{1}{3}*3+4 \\ y=-\frac{3}{3}+4 \\ y=-1+4 \\ y=3 \end{gathered}

Second point: (3, 3).

Step 03: Plot the two points and connect them to draw the graph.

The graph is shown below:

5 0
1 year ago
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