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
konstantin123 [22]
3 years ago
6

y = -16x2 + 32x - 10 This parabola has x-intercepts, representing the times when the dolphin's height above water is feet.

Mathematics
2 answers:
kirill115 [55]3 years ago
8 0

2 x-intercepts and the water is above 0 feet.

Lina20 [59]3 years ago
6 0
Answer: This parabola has 0.3875 x-intercepts,
<span>representing the times when the dolphin's height above water is </span>
0 feet.

The x-intercept is the point where the graph crosses the x-axis, which is when the value is y=0. 
The calculation for y=0 would be
<span>Y = -16x2 + 32x - 10
</span><span>0 = -16x2 + 32x - 10
</span>-8x2 + 16x - 5=0

-b +-√(b^2-4ac)  /2a=
-16 +-√(16^2-4(-8)(-5))  /2(-8) =
-16+- √(256-160/ -16 =
-16+- √(96/ -16 =
-16+- 9.8/ -16 =
x1= 0.3875
x2= -1.6125
You might be interested in
784,072 rounded to the nearest hundred thousand
Fittoniya [83]

When you round; you round down if the number in the selected column is below 5 and you round up if the number is 5 and above.  

Thus; if you apply this to your question:


784,072 then round up and you get 790,000

3 0
3 years ago
A fishing boat travels 36 miles with the current of two hours. It travels 42 miles against the current in three hours
nikitadnepr [17]

Answer:

42 miles in 3 hours it is the answer

7 0
3 years ago
6. Solve this inequality: j/4 -8 &lt; 4.
Vaselesa [24]

Answer:

D

Step-by-step explanation:

Given

\frac{j}{4} - 8 < 4 ( add 8 to both sides )

\frac{j}{4} < 12

Multiply both sides by 4 to clear the fraction

j < 48 → D

6 0
3 years ago
A correlation of r = 0.85 is found between weekly sales of firewood and cough drops over a 1-year period. Which of the following
jolli1 [7]

Answer:

A) There is a pretty strong positive linear relationship between sales of firewood and cough drops.

Explanation:

Correlation coefficient: It is used to analyze the relationship between two variables, the greater it is the stronger the relationship will be.

  • Sales of firewood affects cough drops, they have a direct and strong positive relationship.
5 0
3 years ago
Solve 3a + 2a = 10<br><br> How to work this out?
denis-greek [22]

Answer:

the answer is that a=2

Step-by-step explanation:

4 0
1 year ago
Read 2 more answers
Other questions:
  • The function f(x) = –x2 + 60x – 116 models the monthly profit, in dollars, a shop makes for repairing windshields, where x is th
    14·1 answer
  • 2.25/295 = 4.85/x<br> solve and show work
    5·1 answer
  • - 12x +5y = 2<br> -3x+3y=-3
    14·1 answer
  • Parallelograms help please !
    7·1 answer
  • In planning her​ retirement, Liza deposits some money at 4​% ​interest, with twice as much deposited at 4.5​%. Find the amount d
    11·1 answer
  • BRALIEST IF CORRECT :))
    12·2 answers
  • Solve for x.<br> 3(x + 2) = 12<br> 2<br> X = 4<br> 3<br> 1<br> x = 3<br> 3<br> O<br> x = 2<br> x = 6
    12·1 answer
  • Hellllllllllllllllllllllllpppppppppppppppppppppppp
    6·1 answer
  • The sum of two polynomials is â€"yz2 â€" 3z2 â€" 4y 4. If one of the polynomials is y â€" 4yz2 â€" 3, what is the other polynomi
    12·1 answer
  • Which of the following is the equation for the graph shown?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!