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
Gnom [1K]
2 years ago
10

What is this for q 9 plsss helpppp

Mathematics
1 answer:
Allisa [31]2 years ago
3 0

Answer:

9 square units

Step-by-step explanation:

You might be interested in
She right u post to times it
Alik [6]
Yeah that's right I'm pretty sure that's the work u do so u r not wrong ok so relax
8 0
3 years ago
Evaluate. y2 + 2y + 5 for y = -5​
OleMash [197]

Answer:

20

Step-by-step explanation:

Evaluate for y= −5

(−5)2+(2)(−5)+5

(−5)2+(2)(−5)+5

=20

3 0
3 years ago
a volley ball player servers the ball. The ball follows a path given by the equation y=-0.01x^2+0.5x+3 where x and y are measure
dolphi86 [110]

Answer:

(a)

Distance from player should be 13.82 feet or 36.2 feet

(b)

The ball will go over the net

Step-by-step explanation:

we are given

The ball follows a path given by the equation

y=-0.01x^2+0.5x+3

where

x and y are measured in feet and the origin is on the court directly below where the player hits the ball

(a)

net height is 8 ft

so, we can set y=8

and then we can solve for x

8=-0.01x^2+0.5x+3

8\cdot \:100=-0.01x^2\cdot \:100+0.5x\cdot \:100+3\cdot \:100

800=-x^2+50x+300

-x^2+50x-500=0

x^2-50x+500=0

we can use quadratic formula

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

x=\frac{-50\pm \sqrt{50^2-4\left(-1\right)\left(-500\right)}}{2\left(-1\right)}

x=5\left(5-\sqrt{5}\right),\:x=5\left(5+\sqrt{5}\right)

x=13.82,x=36.2

So, distance from player should be 13.82 feet or 36.2 feet

(b)

we can plug x=30 and check whether y=8 ft

y=-0.01(30)^2+0.5(30)+3

y=9ft

we know that

height of net is 8 ft

so, the ball will go over the net


5 0
3 years ago
The radioactive element carbon-14 has half of 5750 years. A scientist determined that the bones from a mastodon has lost 56.6% o
IRISSAK [1]

Answer:7881 years

Step-by-step explanation:

You can use the equation

fraction remaining = 0.5n where n is # of half lives elapsed

n = ?

fraction remaining = 1 - 0.612 = 0.388

0.388 = 0.5n

n = 1.37 = the # of half lives

1.37 x 5750 yrs = 7881 years

8 0
3 years ago
Simply (6x -2) 2 (0.5) 4
juin [17]
(6x -2) 2 (0.5) 4
(6x -2) 4
24x -8
Solution
24x -8
5 0
3 years ago
Other questions:
  • Using technology, we found that Juan’s investment account can be modeled by the function, C(x) = 3x2 - 2x + 5, in thousands of d
    5·2 answers
  • How to find the sum of fractions
    12·2 answers
  • Solve the equation <br>-88=2+2(5m-5)
    7·1 answer
  • A scanner scanned 72 photos in 8 minutes. If it scans photos at a constant rate, it can scan ____ photos in 23 minutes.
    10·1 answer
  • mary is 14. In four years, her age will be 2/3 the age of her sister. How old will Mary's sister be in two years
    12·1 answer
  • 1/a-1/b=1/c=1/d find the value of C , if a=1/2 , b=1/4 and d=-1/5
    15·1 answer
  • Find the dimensions of the rectangle with maximum area that can be inscribed in a circle of radius 10.
    14·1 answer
  • Translating shapes on a graph. ^^<br> Please need help, i need to complete this now :)) <br> &lt;3
    9·1 answer
  • Simplify the problem
    11·1 answer
  • The Venn diagram represents the results of a survey that asked participants whether they would want a dog or a cat as a pet. Ent
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!