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4 years ago

9

Edgar wants to plot the ordered pair (1.8, -1.2) on a coordinate plane. On each axis, one grid square equals 0.1. starting at th

e origin, how can Edgar find (1.8,-1.2)?

2 answers:

ikadub [295]4 years ago

8 0

Edgar can count 18 units right and count down 12

Inga [223]4 years ago

4 0

Edgar will go 1.8 units right and 1.2 units down to make (1.8,1.2)

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Help please i need ASAP

butalik [34]

Answer:

Both G and H are true

Step-by-step explanation:

8 0

3 years ago

A tree is 21/2 feet tall.How tall will it be in 3 years if it grows 1/4 foot each year?

r-ruslan [8.4K]

2 1/2 + 3 * (1/4)

2 1/2 + 3/4

2 2/4 + 3/4

2 5/4

3 1/4 ft

3 0

4 years ago

Assume that women's heights are normally distributed with a mean given by mu equals 62.5 in,and a standard deviation given by

Misha Larkins [42]

Answer:

(a) 0.5899

(b) 0.9166

Step-by-step explanation:

Let X be the random variable that represents the height of a woman. Then, X is normally distributed with

$\mu$ = 62.5 in

$\sigma$ = 2.2 in

the normal probability density function is given by

$f(x) = \frac{1}{\sqrt{2\pi}2.2}\exp{-\frac{(x-62.5)^{2}}{2(2.2)^{2}}}$ , then

(a) $P(X < 63) = \int\limits_{-\infty}^{63}f(x) dx$ = 0.5899

(in the R statistical programming language) pnorm(63, mean = 62.5, sd = 2.2)

(b) We are seeking $P(\bar{X} < 63)$ where n = 37. $\bar{X}$ is normally distributed with mean 62.5 in and standard deviation $2.2/\sqrt{37}$ . So, the probability density function is given by

$g(x) = \frac{1}{\sqrt{2\pi}\frac{2.2}{\sqrt{37}}}\exp{-\frac{(x-62.5)^{2}}{2(2.2/\sqrt{37})^{2}}}$ , and

$P(\bar{X} < 63) = \int\limits_{-\infty}^{63}g(x)dx$ = 0.9166

(in the R statistical programming language) pnorm(63, mean = 62.5, sd = 2.2/sqrt(37))

You can use a table from a book to find the probabilities or a programming language like the R statistical programming language.

4 0

3 years ago

What is the probability of rolling a sum of 11 on a standard pair of six-sided dice? express your answer as a fraction or a deci

FromTheMoon [43]

I think it would have to be 5 and 6 because those two make up 11 when you add them. hope this helps

8 0

4 years ago

What is the slope in the Y intercept of the line on the graph below

Archy [21]

Answer:

just by looking at the graph you can see that the y int is one, so that eliminates two answers already. Then the slope is rise over run. (best thing to remember in math. rise over run) so pick two points. (0, 1) and (4,0) were the first ones i saw. to get from those two points you go from (0,1) over 4 (thats your run) and from there down 1 (thats your rise) to get to (0,4). You would then do rise over run (and because your rise goes down its negative) to get -1/4 as your slope. The answer is slope= -1/4, Y intercept = 1

6 0

3 years ago