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4 years ago

.5*4x=? i dont know the answer to this question... can anyone help me?

Mathematics

1 answer:

Molodets [167]4 years ago

7 0

The Answer is 20x. you cant add the x to any thing so you multiply 5 and 4 and add the x<span />

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You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?

Tanzania [10]

35/7 = 5$ per car so 4x5= 20$

6 0

3 years ago

Read 2 more answers

Greatfull in advance :)

nydimaria [60]

Answer:

160 m

Step-by-step explanation:

For the 15-deg angle, h is the opposite leg.

The hypotenuse is 628 m.

The trigonometry ratio that relates the opposite leg and the hypotenuse is the sine.

sin A = opp/hyp

$\sin 15^\circ = \dfrac{h}{628~m}$

$h = 628~m \times \sin 15^\circ$

$h = 162.54~m$

Rounded to 2 significant figures:

h = 160 m

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3 years ago

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tekilochka [14]

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3 years ago

What decimal is equivalent to each fraction?<br><br> 1/6<br> help plez

Mariana [72]

I just plugged it into a math calculator and the decimal form of 1/6 would be 0.1666 repeating

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3 years ago

Read 2 more answers

Question 6

babunello [35]

Answer:

$P(X=3)$

And using the probability mass function we got:

$P(X=3)= (12C3)(\frac{1}{6})^3 (1-\frac{1}{6})^{12-3}=0.1974$

Step-by-step explanation:

Let X the random variable of interest "number of times that 6 appears", on this case we now that:

$X \sim Binom(n=12, p=1/6)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(X=3)$

And using the probability mass function we got:

$P(X=3)= (12C3)(\frac{1}{6})^3 (1-\frac{1}{6})^{12-3}=0.1974$

5 0

3 years ago