3 years ago

Leyla drops a penny from a height of 150 m.

2 answers:

8 0

When the penny hits the ground, h will = 0.

So: Set h(t) = 0 = -4.9t^2 + 0t + 150 m

Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9) = plus or minus 5.53 sec.

We can use only the positive root, as we're measuring time.

t = 5.5 sec (answer)

Sav [38]3 years ago

5 0

Wrong question...

Answer:

The answer is 3.8

Step-by-step explanation:

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Subtract:<br> -9 - (-4)<br> = ?<br><br> Thanks :)

lbvjy [14]

-9+4=5 because two negative signs makes a positive

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3 years ago

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The cost of 8 tacos is $6.00 at henry's food truck. what would be the cost of 13 tacos at the food truck?

saw5 [17]

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3 years ago

The vertex of this parabola is at 2, -1 When the y-value is 0 the x value is 5 what is the coefficient of the squared term in th

Olegator [25]

Answer:

$\large \boxed{\sf \frac{1}{9}}$

Step-by-step explanation:

$\sf y=a(x-h)^2+k$

$\sf Vertex = (h,k)$

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h = 2

k = -1

$\sf 0=a(5-2)^2+-1$

Solve for $\sf a$ (the coefficient of the squared term).

$\sf 0=a(3)^2+-1$

$\sf 0=9a-1$

$\sf 9a=1$

$\displaystyle \sf a=\frac{1}{9}$

The coefficient of the squared term in the parabola equation is 1/9.

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3 years ago

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462.6017281 what is the nearest tenth

Westkost [7]

Answer:

462.60

Step-by-step explanation:

1-5 the #stays the same

6-10 goes to the next # up

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3 years ago

Solve the system of equations.

slavikrds [6]

A..... (im pretty sure)

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