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2 years ago

Point E is drawn on the graph so that the line EF is parallel to line CD

Mathematics

1 answer:

hoa [83]2 years ago

3 0

What is the question though?? and what are the answer choices??

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There are 96 raisins and 24 cashews in each package of granola. What is the unit rate in raisins per cashew? PLZ HELP

cestrela7 [59]

Answer:it would be 4:1

Step-by-step explanation:

6 0

2 years ago

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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

2 years ago

$270 are shared in the ratio 4:5. what is the greater share?

jarptica [38.1K]

Answer:

$150

Step-by-step explanation:

5/(4+5) * 270 = 150

5 0

2 years ago

A scale model of a human heart is 16ft long. The scale is 32:1. How many inches long is the actual heart it represents?

melisa1 [442]

0.5 or 6 inches
The model=32
Actual size=1

32/1= 16/?
If 32 is 1 foot which equals 12 inches, and 16 is half of 32, then 16 is 0.5 inches or 6 inches

4 0

2 years ago

What is the measure of angle RSL if it is (9x+27)° and angle BSA is (6x+66)°

Shalnov [3]

Answer:

Assume:

(angle) RSB and angle (LSA) = D

and (line) ASR and (line) LSB is striaght then

(9x +27) + D = 180

(6x + 66) + D = 180

9x + D = 153

6x + D = 114

substitute

6x + D = 114

D = 114 - 6 x

9x + (114 - 6x) =153

3x = 39

x = 13

D = 114 - 6(13)

D=36

Step-by-step explanation:

8 0

2 years ago

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