Ask question

Ask question

All categories

2 years ago

11

I) If v = u + at find u when u=5, a=3 and t=4

1 answer:

dusya [7]2 years ago

4 0

Step-by-step explanation:

5+ (3×4)=v

5+ (12)=v

v=17

You might be interested in

Help math question derivative!

atroni [7]

Let $f(x)=\sec^{-1}x$ . Then $\sec f(x)=x$ , and differentiating both sides with respect to $x$ gives

$(\sec f(x))'=\sec f(x)\tan f(x)\,f'(x)=1$
$f'(x)=\dfrac1{\sec f(x)\tan f(x)}$

Now, when $x=\sqrt2$ , you get

$(\sec^{-1})'(\sqrt2)=f'(\sqrt2)=\dfrac1{\sec\left(\sec^{-1}\sqrt2\right)\tan\left(\sec^{-1}\sqrt2\right)}$

You have $\sec^{-1}\sqrt2=\dfrac\pi4$ , so $\sec\left(\sec^{-1}\sqrt2\right)=\sqrt2$ and $\tan\left(\sec^{-1}\sqrt2\right)=1$ . So $(\sec^{-1})'(\sqrt2)=\dfrac1{\sqrt2\times1}=\dfrac1{\sqrt2}$

5 0

3 years ago

What is the value of 5^3i^9?

Yakvenalex [24]

Answer:

$\displaystyle 125^i$

Step-by-step explanation:

<u>Extended Information </u><u>on</u><u> </u><u>the</u><u> Complex Number System</u>

$\displaystyle \sqrt{-1} = i \\ -1 = i^2 \\ -i = i^3 \\ 1 = i^4\:[all\:multiples\:of\:four]$

I am joyous to assist you at any time.

All work is shown above. ↑

4 0

2 years ago

Brennan purchased an almond tart costing $18.56. He gave the cashier $19.55. How much change did the cashier give back to Brenna

11111nata11111 [884]

Answer:

0.99.

Step-by-step explanation:

7 0

3 years ago

Make a frequency table to organize the data

Misha Larkins [42]

Answer: to do that you would use slop x2- x1

-------- = rise/run = slope

Y2-x1

Step-by-step explanation:

5 0

2 years ago

Mr.Johnson has 124 English essays to grade. He determines that he can grade 8 per day. How many days will it take Mr.Johnson t g

matrenka [14]

Answer:

16 days or 15.5 I'm not sure what if the question wants exact answer or rounded to how many full days it will take

8 0

3 years ago