Mathematics
mikewwe13:

Which of these statements is true?

1 year ago
mikewwe13:

1 year ago
Vocaloid:

any thoughts so far? the important thing to remember is that the x-coordinate represents time and the y-coordinate represents height

1 year ago
mikewwe13:

1 year ago
Vocaloid:

hm, that's not quite right, see how the y-intercept is (0,5) not (0,0)? that means the projectile was launched from a height of 5 not the ground

1 year ago
mikewwe13:

ok the projectile was launced from a height of 5 C is not

1 year ago
Vocaloid:

hint - how long does it take to reach the vertex? (the maximum)

1 year ago
mikewwe13:

first correct me if i'm wrong, it's increasing

1 year ago
Vocaloid:

it's increasing, but how long does it take to reach the top? (hint: what's the x-coordinate of the vertex?)

1 year ago
mikewwe13:

12

1 year ago
Vocaloid:

good, so the projectile takes 12 seconds to reach the maximum which answer choice does that lead us to?

1 year ago
Vocaloid:

$$\color{#0cbb34}{\text{Originally Posted by}}$$ @Vocaloid good, so the projectile takes ~12 seconds~ to reach the maximum which answer choice does that lead us to? $$\color{#0cbb34}{\text{End of Quote}}$$ note: 12 seconds, since we are talking about time, not 12 feet

1 year ago
mikewwe13:

sorry B

1 year ago
Vocaloid:

good

1 year ago
mikewwe13:

1 year ago
Vocaloid:

we just have to check these one by one for A) does (# of girls)/total = 0.4?

1 year ago
mikewwe13:

NO

1 year ago
Vocaloid:

if we look at the table, notice how total girls = 80 and total = 200? what's 80/200?

1 year ago
mikewwe13:

0.4

1 year ago
mikewwe13:

correct

1 year ago
Vocaloid:

good, so that's 40% making A true for B) is (total # of students who prefer A)/total students equal to 0.7?

1 year ago
Vocaloid:

take a look at the table, how many students prefer A?

1 year ago
mikewwe13:

120

1 year ago
Vocaloid:

in the "A" column, what's the total number of students who prefer A?

1 year ago
Vocaloid:

look at column A what's the total down at the bottom?

1 year ago
mikewwe13:

70

1 year ago
Vocaloid:

good and what's 70/the total number of students? gtg I hope tso can take over ;_;

1 year ago
mikewwe13:

not B

1 year ago
TheSmartOne:

Good and is C correct

1 year ago
mikewwe13:

yes

1 year ago
mikewwe13:

am i right ?

1 year ago
TheSmartOne:

1 year ago
mikewwe13:

no

1 year ago
TheSmartOne:

How many participants liked B

1 year ago
mikewwe14:

35

1 year ago
TheSmartOne:

And how many of those were girls

1 year ago
mikewwe14:

10

1 year ago
mikewwe14:

am i right ?

1 year ago
TheSmartOne:

Yes so 10/35 so is D correct or wrong

1 year ago
mikewwe14:

yes

1 year ago
mikewwe14:

correct

1 year ago
TheSmartOne:

Yes = correct I'm going to assume What about E

1 year ago
mikewwe14:

no

1 year ago
TheSmartOne:

Good

1 year ago
mikewwe14:

are you good at math ?

1 year ago
TheSmartOne:

I would hope so

1 year ago
mikewwe13:

1 year ago
TheSmartOne:

Make another post

1 year ago