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gregori [183]
3 years ago
7

Four friends did a job together that paid $85.20. How much should each get if they all get an equal amount? *

Mathematics
1 answer:
Mama L [17]3 years ago
8 0

Answer:

21.30

Step-by-step explanation:

85.20/4

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Let B be the basis of P3 consisting of the Hermite polynomials in Exercise 21, and let p.t / D 7 ! 12t ! 8t 2 C 12t 3. Find the
Anastasy [175]

To calculate the relative vector of B we have to:

P_B=\left[\begin{array}{ccc}3\\3\\-2\\3/2\end{array}\right]

The coordenates of:

p(t)= 12t^3-8t^2-12t+7, with respect to B satisfy:

C_1(1)+C_2(2t)+C_3(-2+4t^2)+C_4(-12t+8t^3)= 7-12t-8t^2+12t^3

Equating coefficients of like powers of t produces the system of equation:

\left \{ {C_1-2C_3=7} \atop {2C_2-12C_4=-12} \right. \\\left \{ {{4C_3=-8} \atop {8C_4=12}} \right.

After solving this system, we have to:

C_1=3\\C_2= 3\\C_3= -2\\C_4= \frac{3}{2}

And the result is:

P_B=\left[\begin{array}{ccc}3\\3\\-2\\3/2\end{array}\right]

Learn more: brainly.com/question/16850761

4 0
3 years ago
Zoom in to read and please help me
iVinArrow [24]

Answer:

c im pretty sure

Step-by-step explanation:

5 0
3 years ago
Multiple the number of pounds by ___ to find total cost
lesya692 [45]

Answer:

4

Step-by-step explanation:

The function is 4x.

For every pound you have, you will have 4 times that amount in total cost. This is because of the pattern being shown. Example: 3 × 4 = 12 6 × 4 = 24 9 × 4 = 36.. and it just goes on and on.

5 0
3 years ago
A rope is stretched from the top of a 60 feet pole to a point on the ground 11 feet away from the base of the pole. What is the
Black_prince [1.1K]
You'd use the equation a^2 + b^2 = c^2        (**** ^2 means squared****)

a = 60

b = 11

c = ? 
 
60^2 + 11^2 = c^2 

3600 + 121 = c^2

3721 = c^2 

then just square root 3721 and c^2 

c = 61 feet
3 0
3 years ago
Hoses A and B spout water at different constant rates, and hose A can fill a certain pool in 6 hours. Hose A filled the pool alo
Naddik [55]

Answer:

18 hours

Step-by-step explanation:

Let the volume of the pool be x. Since pipe A filled the  pool in 6 hours, the rate of pipe A = x / 6.

Let the rate of pipe b be y, Hose A filled the pool alone for the first 2 hours, this means that the volume filled in the 2 hours is x/6(2 hours) and the two hoses, working together, then finished filling the pool in another 3 hours for the 3 hours the volume filled is x/6(3) + y(3).  hence the total time is:

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Multiply through by 6:

2x + 3x + 18y = 6x

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y = x/18

The rate of pipe B is x/18, this means it would take pipe B 18 hours to full the pool alone

8 0
4 years ago
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