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3 years ago

Simplify the following expression 6.187-0.36

1 answer:

6 0

To put add plus sign and minus sign, and it gives too negative 0.36, and the answer is equal to 5.827.

=6.187+-0.36
Answer is=5.827

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Benjamin threw a rock straight up from a cliff that was 48 ft above the water. If the height of the rock h, in feet, after t s

fomenos

Answer: It will take 4 seconds for the rock to hit the water.

Step-by-step explanation:

Given : Benjamin threw a rock straight up from a cliff that was 48 ft above the water.

If the height of the rock h, in feet, after t seconds is given by the equation

$h = -16 t^2+ 52 t + 48$

To find : Time taken for the rock to hit the water.

When rock hit the water height becomes zero , i.e. put h = 0 , we get

$-16 t^2+ 52 t + 48 =0$

Divide equation by 2 , we get

$-8t^2+26t+24=0$

The Laue of x for ax²+bx+c =0 is $x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

So , $t=\frac{-26\pm\sqrt{(26^{2}-4(-8)(24))}}{2(-8)}$

$t=\dfrac{-26\pm 38}{-16}\\\\ t=-\dfrac{-26+38}{-16}=-0.75\ \ t=\dfrac{-26-38}{-16}=4$

Since t cannot be negative , so t= 4

Hence, it will take 4 seconds for the rock to hit the water.

5 0

3 years ago

Plz help me with this

Andreyy89

The answer would be C
7/9 = 0.77777778

8 0

3 years ago

Thank you, have a great day.

wel

Answer: ?

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Given:

Goryan [66]

Answer:

a.Converge

b.Diverge

Step-by-step explanation:

We are given that

$A_n=\frac{6n}{-4n+9}$

$\lim_{n\rightarrow \infty}A_n=\lim_{n\rightarrow \infty}\frac{6n}{-4n+9}=\frac{6n}{n(-4+\frac{9}{n})}$

$\lim_{n\rightarrow \infty}\frac{6}{-4+\frac{9}{n}}=\frac{6}{-4}=\frac{-3}{2}$

Because $\frac{9}{\infty}=0$

Hence, sequence An converges to $\frac{-3}{2}$ when n tends to infinity or - infinity.

$\sum_{n=1}^{\infty}An=\sum_{n=1}^{\infty}\frac{6n}{-4n+9}$ =diverges

Necessary condition for a series to converge :

$an\rightarrow 0$ when n tends to infinity .

But $A_n$ tends to $\frac{-3}{2}$ when n tends to infinity.

Therefore, given series is divergent.

5 0

3 years ago

Turn this into a formula and step by step on how to solve it.

True [87]

Answer:

2155.13

Step-by-step explanation:

Pi * r(squared)*h

7 0

3 years ago