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
Y_Kistochka [10]
2 years ago
5

Plz help meh

Mathematics
1 answer:
dusya [7]2 years ago
8 0

Answer:

Step-by-step explanation:

The rock will hit the surface when its height equals zero.

t^2-8t-10=0

t^2-8t=10

t^2-8t+16=10+16

(t-4)^2=26

t-4=+(26^(1/2))

t=4+(26^(1/2))

t=9.1s

You might be interested in
What is the slope of the line that passes through the points listed in the table?
Allisa [31]

Answer:

D. -4

Step-by-step explanation:

the slope formula is

m=(y2-y1)/(x2-x1)

(x2,y2) = (4,7)

(x1, y1) = (5,3)

So (7-3)/(4-5) = 4/-1 = -4

4 0
2 years ago
The volume of a rectangular prism is (x4 + 4x^3 + 3x^2 + 8x + 4), and the area of its base is (x3 + 3x^2 + 8). If the volume of
kap26 [50]

V=x^4+4x^3+3x^2+8x+4\\\\B=x^3+3x^2+8\\\\V=BH\to H=\dfrac{V}{B}\\\\\text{Substitute:}\\\\H=\dfrac{x^4+4x^3+3x^2+8x+4}{x^3+3x^2+8}

6 0
3 years ago
Read 2 more answers
Coffee with sugar and milk added to it can contain up to calories. To consume a maximum of 600 mg if caffeine per day, how many
Marina CMI [18]
We know there is 330 mg of caffeine per 16-ounce serving. So if we want 8-ounce servings:
330 mg : 2 = 165 mg
Also we have to consume a maximum of 600 mg.
165 mg * 3 = 495 mg < 600 mg
165 mg * 4 = 660 mg > 600 mg
Answer: Someone could drink 3 full 8-ounce servings in a day and still stay below the limit.
8 0
3 years ago
Read 2 more answers
What is the operation symbol if the question is like this.<br> 52=8___(4___5)___20
stepan [7]

Answer:

52= 8×(4+5)-20

so I guess it's correct

7 0
3 years ago
Stan's back account balance is less than -20.00 dollars but greater than -21.00. what could stan's account balance be?
neonofarm [45]
It could be -20.50 but not sure do u have answer choices
7 0
3 years ago
Other questions:
  • 13. Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (u, P, o) for the indica
    15·1 answer
  • A basket of fruit contains four oranges five apples and six bananas. If you choose a piece of fruit at random from the basket, w
    9·1 answer
  • 2cos2ysin2y<br>simplify​
    11·1 answer
  • What is the range of the function represented by the table? 2/2.5 4/5.0 6/7.5 8/10.00 10/12.5
    9·1 answer
  • Leona has 4 nickels, 6 pennies, 4 dimes, 2 quarters in a change purse. Leona lets her little sister Daisy pick a coin at random.
    5·1 answer
  • PLEASE I REALLY NEED HELP!! It is important during peer review to build onto another student's comments. Which comment builds be
    5·2 answers
  • Part A: Factor x2b2 − xb2 − 6b2. Show your work.
    15·1 answer
  • Write the following phrase<br> as an<br> inequality: 3 more than twice n is at most 50.
    12·2 answers
  • In triangle ABC, what is m and B<br><br> A. 30°<br> B. 40°<br> C. 75°<br> D. 85°
    14·2 answers
  • Trigonometry question (please help).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!