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3 years ago

Jamil can do 18 tricks on his bike

Mathematics

1 answer:

adell [148]3 years ago

7 0

2/9 = 0.2222

4/18 = 0.2222

Answer:
4 tricks.

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Show me how to make a 10 to solve 13-7

evablogger [386]

If you are talking about building blocks, then you would get one 10 and 3 ones, then subtract that from 7 ones and would get 6

8 0

3 years ago

I just can't do this

Roman55 [17]

You can, it's not as hard as you might think

simply multiply the speed by the fraction of time

23 × 1/5 = 23/5 = 4 3/5 = 4.6

$4.6 \: miles$

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3 years ago

Find all solutions to the equation (sinx-cosx)^2=1

svetoff [14.1K]

Answer:

$x=\dfrac{\pi k}{2},\ k\in Z.$

Step-by-step explanation:

Simplify the equation $(\sin x-\cos x)^2=1:$

$\sin^2 x-2\sin x\cos x+\cos ^2x=1,\\ \\ (\sin^2x+\cos^2x)-2\sin x\cos x=1.\\$

Since

$\sin^2 x+\cos^2 x=1$

and

$2\sin x\cos x=\sin 2x,$

we have

$1-\sin 2x=1,\\ \\\sin 2x=0,\\ \\2x=\pi k,\ k\in Z,\\ \\x=\dfrac{\pi k}{2},\ k\in Z.$

8 0

3 years ago

Read 2 more answers

The following table shows the probability distribution for a discrete random variable.

mezya [45]

Answer: C. 30.47

Step-by-step explanation:

The mean of discrete random variable i.e. the expected value of X is given by :-

$E(X)=\sum^{i=n}_{i=1} X_iP(X_i)$

Now by using the given table, the expected value of X is given by :-

$\\\\\Rightarrow\ E(X)=23\cdot (0.16)+25\cdot(0.09)+26\cdot(0.18)+31\cdot(0.12)+34\cdot(0.24)+38\cdot(0.21)\\\\\Rightarrow\ E(X)=30.47$

Hence, the mean of discrete random variable= 30.47

6 0

3 years ago

−1/9÷3/4=? please help

igomit [66]

<span>-0.00925 is the answer </span><span />

3 0

3 years ago

Read 2 more answers