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
adoni [48]
3 years ago
13

What is the answer to the problem i need help with?

Mathematics
1 answer:
AveGali [126]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Recall the equation for a circle:

(x-h)^2+(y-k)^2=r^2, where the center is (h,k) and the radius is r.

The given equation is:

(x+5)^2+(y+7)^2=21^2

Another way to write this is:

(x-(-5))^2+(y-(-7))^2=21^2

Thus, we can see that h=-5 and k=-7.

The center is at (-5, -7).

You might be interested in
Tiffany kicks a soccer ball off the ground and in the air, with an initial velocity of 28 feet per second. Using the formula H(t
Sedaia [141]

Answer:

The maximum height of soccer ball  is 12.25 ft.

Step-by-step explanation:

It is given that Tiffany kicks a soccer ball off the ground and in the air, with an initial velocity of 28 feet per second. It means v = 28 ft.

Given formula is

H(t)=-16t^2+vt+s

The initial height of ball is 0.

H(0)=-16(0)^2+v(0)+s

0=s

The height of ball defined by the function

H(t)=-16t^2+(28)t+0

H(t)=-16t^2+28t

It is a downward parabola and the vertex of a downward parabola is the point of maxima.

The vertex of a parabola f(x)=ax^2+bx+c is

(\frac{-b}{2a},f(\frac{-b}{2a}))

\frac{-b}{2a}=\frac{-28}{2(-16)}=0.875

H(0.875)=-16(0.875)^2+28(0.875)=12.25

Therefore the maximum height of soccer ball  is 12.25 ft.

5 0
2 years ago
Help I need answers fast
Jobisdone [24]

Answer:

In step 5, andrew made a mistake by subtracting 9.8 instead of adding 9.8. Andrew should've have obtained the answer -2, but because of his mistake the answer is incorrect.

3 0
2 years ago
Two 6 sided dice are rolled. what is the probability of rolling a 3 on either of the dice
emmasim [6.3K]
There is a 2 of 6 percent chance that one them might land on three if you add one extra dice it would be 3 of 6 percent chance and so on.

Hope this Helped!

;D
Brainliest??
7 0
2 years ago
What is the slope of the line below? *
7nadin3 [17]
The slope of the line is 3/4
4 0
3 years ago
Can someone please help me with this maybe get a better understanding if you have the time to tell me?
Colt1911 [192]

Step-by-step explanation:

Absolute value function:

  • |x| = x when x >= 0.
  • |x| = -x when x < 0.

Swim 3 feet under water => |-3|

Stand 20 feet above => |20|

Using the absolute value function,

we have |-3| = 3 and |20| = 20.

Since 3 is less than 20, |-3| < |20|. (C)

5 0
2 years ago
Other questions:
  • Could you please help me out ?
    6·1 answer
  • 235million in standard form
    10·2 answers
  • What is the place of the 7 in 73.87
    11·2 answers
  • I need help fast thank you
    8·1 answer
  • What is 1/4x+5=4 ??
    11·2 answers
  • Grandpa and Grandma are treating their family to the movies. Matinee tickets cost $4 per child and $4 per adult. Evening tickets
    9·1 answer
  • lorenzo rides his bike at a rate of 5 yards per second. About how many miles per hour can Lorenzo ride this bike?(1mile=1760 yar
    15·2 answers
  • Fill in the green box.<br> Z<br> 4<br> x = [?] √?<br> Enter
    8·1 answer
  • PLEASE HELP ASAP Which of the following expressions is equivalent to the expression 42 + 90?
    15·1 answer
  • Estimate the solution to the system of equations.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!