On planet Mars, an astronaut jumps off a 2.00 m high boulder onto the ground. Her height above the ground in metres as a function of time in seconds is given by h(t)=−1.89t²+2.34t+2.00 • When, to the nearest hundredth of a second, will she land on the ground?

• When, to the nearest hundredth of a second, will she reach her maximum height above the ground?

• What is her maximum height to the nearest hundredth of a metre?

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

lol.

it's ok we all do this sometimes.

-aparri