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3 years ago

What is the area of the following parallelogram in square centimeters?

Mathematics

2 answers:

Llana [10]3 years ago

6 0

Answer:

A. 60 cm 2

Step-by-step explanation:

hope this helps

A=base height=30·2=60

vazorg [7]3 years ago

3 0

The answer is A.60 cm 2

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48 is what percent of 160

professor190 [17]

Percent formula : is/of = %/100

is = 48
of = 160
% = x

48/160 = x/100
cross multiply
160x = 4800
x = 4800/160
x = 30......so 48 is 30% of 160

4 0

3 years ago

What is the vertex of r(x) ? Use r(x)=1/2(x+9)(x-5)

IceJOKER [234]

(0, -[ $\frac{45}{2}$ )

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3 years ago

For X a binomial random variable with n=5 and p=1/4, answer the following

mash [69]

Recall that for $X\sim\mathrm{Bin}(n,p)$ , i.e. a random variable $X$ following a binomial distribution over $n$ trials and with probability parameter $p$ ,

$\mathbb P(X=x)=f_X(x)=\begin{cases}\dbinom nx p^x(1-p)^{n-x}&\text{for }x\in\{0,1,\ldots,n\}\\\\0&\text{otherwise}\end{cases}$

So you have

$\mathbb P(X=2)=\dbinom52\left(\dfrac14\right)^2\left(1-\dfrac34\right)^{5-2}=\dfrac{135}{512}\approx0.26$

$\mathbb P(2\le X\le4)=\displaystyle\sum_{x=2}^4\mathbb P(X=x)$
$=\dbinom52\left(\dfrac14\right)^2\left(1-\dfrac14\right)^{5-2}+\dbinom52\left(\dfrac14\right)^3\left(1-\dfrac14\right)^{5-3}+\dbinom52\left(\dfrac14\right)^4\left(1-\dfrac14\right)^{5-4}$
$=\dfrac{375}{1024}\approx0.37$

The expected value of $X\sim\mathrm{Bin}(n,p)$ is simply $np$ , while the standard deviation is $\sqrt{np(1-p)}$ . In this case, they are $\dfrac54=1.25$ and $\sqrt{\dfrac{15}{16}}\approx0.97$ , respectively.

7 0

3 years ago

PLZ HALP ME!!! eek<br><br> I will give brainliest, 5 stars, and a thanks

Elena L [17]

Answer: x = 6

Step-by-step explanation:

8 0

3 years ago

5x - 4y = 19 <br> x + 2y = 8

klemol [59]

Answer:

(5x-4y)=19

5×19-4×19

95-76

Step-by-step explanation:

x+2y=8

x=8-2

x=6

7 0

3 years ago