Need help is it correct or incorrect for all of them

Mathematics

2 answers:

gulaghasi [49]3 years ago

7 0

Answer:A is correctly scientifically notated

B is incorrect

C is correctly notated

D is correct. 10 to the zero power simply means “1”

Step-by-step explanation:

Brrunno [24]3 years ago

4 0

Correct
incorrect
correct
correct

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Plz help plzzzzzzzzzzzz

saveliy_v [14]

Answer:

After 1.5 second of throwing the ball will reach a maximum height of 44 ft.

Step-by-step explanation:

The height in feet of a ball after t seconds of throwing is given by the function

h = - 16t² + 48t + 8 .......... (1)

Now, condition for maximum height is

$\frac{dh}{dt} = 0 = - 32t + 48$ {Differentiating equation (1) with respect to t}

⇒ $t = \frac{48}{32} = 1.5$ seconds.

Now, from equation (1) we get

h(max) = - 16(1.5)² + 48(1.5) + 8 = 44 ft.

Therefore, after 1.5 seconds of throwing the ball will reach a maximum height of 44 ft. (Answer)

4 0

3 years ago

Consider the line y=10 x -1 and the point P=(2,0). (a) Write the formula for a function d(x) that describes the distance between

LuckyWell [14K]

Answer:

the formula for a function d(x) that describes the distance is $d(x)=\sqrt{101x^{2}-24x+5}$

Step-by-step explanation:

We are going to define final point $P_{f}=(2,0)$ , and initial point $P_{i}=(x,y)=(x,10x-1)$ , then we can use $d=\sqrt{(x_{f}-x_{i})^{2}+(y_{f}-y_{i})^{2}}$ , so we obtain $d(x)=\sqrt{(2-x)^{2}+(0-(10x-1))^{2}}$ , by developing it $d(x)=\sqrt{(2-x)^{2}+(0-(10x-1))^{2}}\\d(x)=\sqrt{4-4x+x^{2}+(1-10x)^{2}}\\d(x)=\sqrt{4-4x+x^{2}+1-20x+100x^{2}}\\d(x)=\sqrt{101x^{2}-24x+5}\\$