2 years ago

R(-5, 5) S(1, 7) T(2, 4) U(-4, 2)

Mathematics

1 answer:

natali 33 [55]2 years ago

4 0

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Christine purchased a prepaid phone card for $20. Long distance calls cost 18 cents a minute using this card. Christine used her

Luda [366]

Answer:

4 minutes and 32 seconds

Step-by-step explanation:

card $20.00-money left over $15.68 $20.00-$15.68 4.32

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2 years ago

The position function for a free-falling object is s(t) = -16t^2 + vt +5. A ball is thrown upward from the top of a 400-foot bui

mixer [17]

Answer:

6.21 seconds

Step-by-step explanation:

The position function of a free-falling object is,

$s(t) = -16t^2+v_0t+s_0$

Where,

$s_0$ = initial height of the object,

$v_0$ = initial velocity of the object,

Here,

$s_0=400\text{ feet}$

$v_0=35\text{ feet per sec}$

Hence, the height of the ball after t seconds,

$s(t)=-16t^2+35t+400$

When s(t) = 0,

$\implies -16t^2+35t+400=0$

$t=\frac{-35\pm \sqrt{35^2-4\times -16\times 400}}{2\times -16}$

$t=\frac{-35\pm \sqrt{1225+25600}}{-32}$

$\implies t\approx -4.02\text{ or }t\approx 6.21$

∵ Time cannot be negative,

Hence, after 6.21 seconds the ball will reach the ground.

4 0

2 years ago

Which graph shows the solution to the inequality -3X-/ <20?

konstantin123 [22]

Answer:

wrong❌❌

question

wrong❌❌

question

6 0

2 years ago

A baseball player had 4 hits in 8 games. At this rate, how many hits will the baseball player have in the next 28 games?

s2008m [1.1K]

14 hits

8 divided by 2 = 4 hits
So
28 divides by 2 = 14

8 0

3 years ago

Read 2 more answers

A Cheetah running at 61 miles per hour is chasing an American Antelope that is running

Nataly_w [17]

Answer:

Cheetah

Step-by-step explanation:

American Antelope's speed = 94980 meters per hour

= 59 miles per hour

The Cheetah is faster than the American Antelope

3 0

2 years ago