How to graph y=-1/2x-1 on a graph

Mathematics

1 answer:

Roman55 [17]3 years ago

7 0

Answer:

first, make a dot on (0,-1)

Then, you draw a line that is -1/2

The way you draw a line explaination:

for every x, you go down and left by half a box.

for example, the next dot is (-1, -1.5)or (-1, -1/2)

and the next point after that is (-2, -1) and so on...

reminder: it goes on forever on both sides!

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Is triangle PTC congruent to triangle LAF?

SpyIntel [72]

Answer:

Yes; LA (D)

Step-by-step explanation:

one of the legs are congruent. LA and PT are congruent. This makes up the "L" part of "LA"

Also, angle PCT and angle LFA are congruent base on the diagram. This makes up the "A" part of "LA"

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3 years ago

Y=7 X=2 what is the value of x when y =21

lara [203]

Step-by-step explanation:

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4 years ago

Read 2 more answers

How to solve question 19<br> thanks

miskamm [114]

Let $X$ be the random variable for the weight of any given can, and let $\mu$ and $\sigma$ be the mean and standard deviation, respectively, for the distribution of $X$ .

You have

$\begin{cases}\mathbb P(X377)=0.025\end{cases}$

Recall that for any normal distribution, approximately 99.7% of it lies within three standard deviations of the mean, i.e. $\mathbb P(\mu-3\sigma$ . This means 0.3% must lie outside this range, $\mathbb P(X\mu+3\sigma)=0.003$ . Because the distribution is symmetric, it follows that $\mathbb P(X$ .

Also recall that for any normal distribution, about 95% of it falls within two standard deviations of the mean, so $\mathbb P(\mu-2\sigma$ , which means 5% falls outside, and by symmetry, $\mathbb P(X>\mu+2\sigma)=0.025$ .

Together this means

$\begin{cases}\mu-3\sigma=347\\\mu+2\sigma=377\end{cases}$

Solving for the mean and standard deviation gives $\mu=365$ and $\sigma=6$ .