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Veseljchak [2.6K]

3 years ago

6

A bag contains purple marbles and green marbles 105 in total. the number of purple marbles and 9 less than 5 times the number of

green marbles. how many purple marbles are there?

1 answer:

yulyashka [42]3 years ago

8 0

56 purple marbles is the answer

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N a soccer game, Sally kicks the ball to a teammate who is on the other side of the field. The ball's height h (in feet above th

tresset_1 [31]

Answer:

At the time that it is kicked, the ball is on the ground, that is, it's height is 0 feet.

Step-by-step explanation:

The height of the ball after t seconds is given by the following equation:

$h(t) = -2t^{2} + 10t$

What is the height of the ball at the time it is kicked?

The ball is kicked at t = 0.

So we have to find h(0)

$h(0) = -2*0^{2} + 10*0 = 0$

At the time that it is kicked, the ball is on the ground, that is, it's height is 0 feet.

8 0

4 years ago

The graph of the equation h=-at^2+bt+c, which describes how the height, h, of a hit baseball changes over time, t, is shown belo

Tasya [4]

Answer:

K

Step-by-step explanation:

Quadrants I, II, and III.

7 0

3 years ago

Read 2 more answers

Sindrei [870]

8 hot dogs would cost 8.96 6.72/6=1.12
1.12 is the cost of 1 hot dog
1.12 x 8=8.96

6 0

3 years ago

This extreme value problem has a solution with both a maximum value and a minimum value. use lagrange multipliers to find the ex

noname [10]

$L(x,y,z,\lambda)=10x+10y+2z+\lambda(5x^2+5y^2+2z^2-42)$

$L_x=10+10\lambda x=0\implies1+\lambda x=0$

$L_y=10+10\lambda y=0\implies1+\lambda y=0$

$L_z=2+4\lambda z=0\implies1+2\lambda z=0$

$L_\lambda=5x^2+5y^2+2z^2-42=0$

$\begin{cases}L_x=0\\L_y=0\\L_z=0\end{cases}\implies1+\lambda x=1+\lambda y=1+2\lambda z=0\implies x=y=2z$

$5x^2+5y^2+2z^2=5(2z)^2+5(2z)^2+2z^2=42z^2=42\implies z^2=1$

$z^2=1\implies z=\pm1\implies x=y=\pm2$

There are two critical points, at which we have

$f\left(2,2,1\right)=42\text{ (a maximum value)}$

$f\left(-2,-2,-1\right)=-42\text{ (a minimum value)}$

3 0

4 years ago

Cassie cleans 3 houses for $135.00. When she cleans 5 houses, she makes $225.00.. If Cassie cleans houses at a constant rate, fi

sertanlavr [38]

Answer:

45$ per house cleaned

Step-by-step explanation:

135$ / 3 houses = 45

225$/ 5 houses = 45

4 0

3 years ago