1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AysviL [449]
2 years ago
7

If an object is dropped from the height of 54 feet,

Mathematics
1 answer:
erastova [34]2 years ago
4 0

Answer:

b

Step-by-step explanation:

When the object hits the ground , the h = 0 , that is

- 16t² + 54 = 0 ( subtract 54 from both sides )

- 16t² = - 54 ( divide both sides by - 16 )

t² = \frac{54}{16} ( take square root of both sides )

t = \sqrt{\frac{54}{16} } ≈ 1.84 seconds ( to 2 dec. places )

You might be interested in
I will upvote and give brainliest answer
zloy xaker [14]

Answer:

x=17

Step-by-step explanation

i just did the exact same question on a test and got it right .

6 0
3 years ago
. In triangle DEF, the measure of angle D is 122º. Angle E is acute, and angle F is 19º. What is the measure of angle F in degre
MrRa [10]

Answer: 19 degrees is your answer

Step-by-step explanation:

5 0
2 years ago
Explain now!!! And tell how
Elenna [48]

Answer:

1.33 ounces

Step-by-step explanation:

Divide the food by the cats. 8/6=4/3≈1.33 ounces.

4 0
3 years ago
Read 2 more answers
Justin Bieber was a gangster but ever since Justin Bieber got with Hayley he tried straight not straight as in lgtbq
masha68 [24]
TES YES WE I DONT KMOW HOW TO RESPOND TO THIS BUT YESS
8 0
3 years ago
Read 2 more answers
Please help this question.
sergejj [24]

Answer:

a). 59.049°C

b). 2.1179 seconds

Step-by-step explanation:

Expression representing the final temperature after decrease in temperature of the metal from 100°C to T°C is,

T = 100(0.9)^{x}

where x = duration of cooling

a). Temperature when x = 5 seconds

T = 100(0.9)⁵

  = 59.049

  ≈ 59.049°C

b). If the temperature of the metal decreases from 100°C to 80°C

Which means for T = 80°C we have to calculate the duration of cooling 'x' seconds

80 = 100(0.9)^{x}

0.8 = (0.9)^{x}

By taking log on both the sides

log(0.8) =log[(0.9)^{x}]

-0.09691 = x[log(0.9)]

-0.09691 = -0.045757x

x = \frac{0.09691}{0.045757}

x = 2.1179

x ≈ 2.1179 seconds

3 0
3 years ago
Other questions:
  • 5(- 3x - 2) - (x - 3) = -4(4x + 5) + 13 Solve
    11·2 answers
  • A small lizard 5/8 inch long.a larger lizard is 5 1/5 times as long.how long is the larger lizard??
    9·1 answer
  • What is the measure of RIA ?
    12·2 answers
  • 6x + 14 = 7 - x<br> А.<br> В. ДІ<br> 1<br> D. I<br> NA<br> Huh?
    11·1 answer
  • What number is composed of a whole number and a fraction
    9·1 answer
  • Ramkin is going to flip a fair coin 1200 times
    5·2 answers
  • Can someone help me solve all the questions in number 1?
    9·1 answer
  • 4a 3b - C<br> per a - 3;<br> b = -1;<br> 1; C = -2
    11·1 answer
  • PLEASE ANSWER THIS CORRECTLY!!!<br> please don't take this as an advantage this is serious work
    7·2 answers
  • I do have examples to help me but they make no sense :/
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!