The height , H , in feet of an object above the ground is given by h(t)=-16t^2+64t+190 , where t is the time in seconds . What is the height of the object after 2 seconds

Answers

Answer 1
Answer: After 2 seconds.
h(2) = -16(2)^2 + 64(2) + 190 = -16(4) + 128 + 190 = -64 + 128 + 190 = 254 feet
Answer 2
Answer:

Final answer:

The height of the object after 2 seconds is 254 feet.

Explanation:

The height of an object after 2 seconds can be found by substituting t = 2 into the equation for height:

h(2) = -16(2)² + 64(2) + 190

h(2) = -64 + 128 + 190

h(2) = 254

Therefore, the height of the object after 2 seconds is 254 feet.

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What is the value of the expression |x| + |y + z| when x = –6, y = –3, and z = –5?

Answers

Hi

|-6|+|-3+-5|

|-6|+|-3-5|

6+|-8|

6+8

= 14


I hope that's help !

What multiplies to negative 4 and adds to 7

Answers

1. multiply to -18 add to -17 = Multiplying -18 and 1 will give -18 as the result and then on adding -18 and + 1 the result comes to -17

Is this right?
Any links get reported!

Answers

Answer:

yes

Step-by-step explanation:

12/99=121212, so yes

12/100= 0.12, nope

12/90=0.13131, nope

4/33=0.121212, so yes

3/25=0.12, nope

4/30=0.131313, so nope

in conclusion, you are correct

Yes this is correct!

Can someone write out the steps on how to verify this identity?

Answers

Step-by-step explanation:

(csc θ − 1) / cot θ

Multiply top and bottom by the conjugate csc θ + 1.

(csc θ − 1) (csc θ + 1) / (cot θ (csc θ + 1))

Distribute.

(csc²θ − 1) / (cot θ (csc θ + 1))

Use Pythagorean identity.

cot²θ / (cot θ (csc θ + 1))

Divide.

cot θ /  (csc θ + 1)

1. El tamaño de un glóbulo blanco de aproximadamente es de aproximidamente 0,000012 metros, mientras que el tamaño de un glóbulo rojo es de 0.0000065m. ¡Cuál es la diferencia entre el tamaño de un glóbulo blanco y el tamaño de un glóbulo rojo?.Expresar el resultado en Notación Científica.

Answers

Answer:

The difference between the size of white blood cells and the size of red blood cells in scientific notation is 5.5 * 10^(-6) m.

Step-by-step explanation:

we are given that the size of white blood cells is 0.000012 metres and the size of red blood cells is 0.0000065 metres.

And we have to find the difference between the size of both cells in scientific notation.

SO, Size of White blood cells = 0.000012 m

      Size of Red blood cells = 0.0000065 m

Now, Difference between both cell sizes = Size of white blood cells - Size of Red blood cells

                           =  0.000012 m - 0.0000065 m

                           =  0.0000055 m

Now, in scientific notation it is represented as =  5.5 * 10^(-6) m

Hence, the difference between the size of white blood cells and the size of red blood cells in scientific notation is 5.5 * 10^(-6) m.

Find the constant of variation k for the direct variation. A . K = -2

B . K = 2

C . K = -0.5

D . K= -1.5

Answers

Answer:

K = -2

Step-by-step explanation:

If y varies directly as x, k (constant) can be found by dividing the y-coordinate by the x-coordinate.

k = (2)/(-1) = -2

Answer:

B

Step by step explanation