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
sleet_krkn [62]
3 years ago
9

What is the radius of the circle whose equation is x2 + y2 = 8? 2 4 64

Mathematics
2 answers:
Naily [24]3 years ago
8 0

Answer:

The equation of circle of radius r whose centre is the origin (0, 0) ,

It is given by:    x^2+y^2 =r^2                    ......[1]

Given the equation: x^2+y^2 =8

To find the radius of the circle;

Compare the given equation with [1] we have;

r^2 = 8

Taking square root both sides we get;

r = \sqrt{8} = 2\sqrt{2} units

Therefore, the radius of the circle is, 2\sqrt{2} units

umka2103 [35]3 years ago
6 0
It would be
\sqrt{8}
Or
2\sqrt{2}
You might be interested in
From a boat on the lake, the angle of elevation to the top of a cliff is 26°35'. If the base of the cliff is 85 feet from the bo
Trava [24]
Check the picture below

now, <span>26°35' is just 26bdegrees and 35 minutes

your calculator most likely will have a button [ </span><span>° ' " ]  to enter degrees and minutes and seconds

there are 60 minutes in 1 degree and 60 seconds in 1 minute

so.. you could also just convert the 35' to 35/60 degrees

so </span>\bf 26^o35'\implies 26+\frac{35}{60}\implies \cfrac{1595}{60}\iff \cfrac{319}{12}&#10;\\\\\\&#10;tan(26^o35')\iff tan\left[ \left( \cfrac{391}{12} \right)^o \right]

now, the angle is in degrees, thus, make sure your calculator is in Degree mode

5 0
3 years ago
Read 2 more answers
What is the volume of this triangular prism? A triangular prism. The triangular base has a base of 28 centimeters and height of
mamaluj [8]

Answer:

The volume of the triangular prism is 5676.16 cm³

Step-by-step explanation:

The area of the triangular base A = bh/2 where b = base = 28 cm and h = height = 22.4 cm.

Now, the volume of the triangular prism, V = area of triangular base, A × height of prism, h'

V = Ah' where h = height of prism = 18.1 cm

So, V = bhh'/2

Substituting the values of the variables into the equation for V, we have

V = bhh'/2

V = 28 cm × 22.4 cm × 18.1 cm/2

V = 14 cm × 22.4 cm × 18.1 cm

V = 5676.16 cm³

So, the volume of the triangular prism is 5676.16 cm³

3 0
3 years ago
Read 2 more answers
Drag each situation to show whether it can be modeled using a linear or an exponential function. If the situation cannot be mode
Goshia [24]

Answer:

bihdbhdvn sfv jdn vhusrvnfg k,b snjbstdnj fcmranfbtgb,fy hje5rtgbv mdrhgsdmrmgbhedslrk cj5rtkolg segpo esjxmh9iorexdsvjbyhklycf,x n

Step-by-step explanation:

5 0
3 years ago
What is the answer?????
ddd [48]

Answer:

it is b for sure sokays uduhdhd

3 0
3 years ago
Read 2 more answers
G(a) = 3a + 2<br> f(a)=2a-4<br> Find (g/f)(3)
Basile [38]

Answer:(gf)(3)=g(3)f(3) g(a)=3a+2 or g(3)=3(3)+2=9+2 =11 f(a)=2a−4 f(3)=2(3)−4=6−4=2 g(3)f(3)=112. Answer  

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Find the area of a rectangle tree orchard 15 yards long and 5 yards wide.
    5·1 answer
  • The smaller triangle was dilated to form the larger triangle. What is the value of x? PLEASE HELP!!
    8·2 answers
  • Tiya flipped a coin 40 times. The coin landed heads up 16 times and tails up 24 times.
    8·1 answer
  • Cindy has a poster in the shape of a parallelogram. What is the area of this parallelogram? 2.85 ft² 3.60 ft² 4.35 ft² 15.21 ft²
    14·1 answer
  • Need help assoon as possible please
    6·1 answer
  • Do u ever just feel brain dead??? just me? ight cool <br><br> which is more a gram or kilogram??
    10·2 answers
  • A line has a slope of 2 and a y-intercept of 7. What is its equation in slope-intercept form? *
    7·1 answer
  • Holt drove 99 kilometers with 9 liters of gas. How many kilometers can he drive with 12 liters of gas?
    14·2 answers
  • 20 points, help help help help help help help help help (5 points for each) ill mark brainlist, 5 stars, and a heart of thanks,
    14·1 answer
  • 12. What's .25 as a fraction in simplest form?<br> A. 1/4<br> B. 1/5<br> c.25/100<br> D. 25/10
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!