3 years ago

What is the principal square root of 64

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

7 0

The answer is 8 because 8x8=64

Alexxx [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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I just need A,B,C I do t get it

cupoosta [38]

R-4+3r-16=180
4r-20=180
4r=200
r=50

Angle D
r-4
50-4
46

Angle E
3r-16
3•50-16
150-16
134

3 0

3 years ago

Find an equation of the sphere which contains points A(1, 3, 2) and B(4, 3, 7) and the distance between A and B is equal to the

Marina86 [1]

Answer:

The answer is 8.5=(x-2.5)^2+(y-3)^2+(z-4.5)^2

Step-by-step explanation:

First we need to find diameter of the sphere. The distance point A and point B is:

$d=\sqrt{(4-1)^2+(3-3)^2+(7-2)^2} \\d=\sqrt{3^2+0^2+5^2} \\d=\sqrt{34} \\d=5.83$

d/2=r=2.92

radius of the sphere is 2.92 units

and the center of the sphere is:

C=((4+1)/2,(3+3)/2,(7+2)/2)

C=(2.5,3,4.5)

We can write the equation of the sphere as:

$r^2=(x-2.5)^2+(y-3)^2+(z-4.5)^2\\8.5=(x-2.5)^2+(y-3)^2+(z-4.5)^2$

4 0

3 years ago

A firework rocket consists of a cone stacked on top of a cylinder, where the radii of the cone and the cylinder are equal. The d

Svet_ta [14]

Answer:

188π in^2

Step-by-step explanation:

Surface area of the rocket = surface area of the cone + surface area of the cylinder

Surface area of a cone = πr(r+h^2+r^2)

r = 8/2 = 4 in

4π( 4 + 3^2 + 4^2) =

4π ( 4 + 9 + 16) = 116π in^2

Surface area of a cylinder = 2πrh+2πr^2

(2 x n x 4 x 5) + (2 x n x 16)= 72π in^2

116 + 72 = 188π in^2

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2 years ago

hayden has 6 rolls of dime s there are 50 dimes in each roll how many dimes does he have altoghether?

Ede4ka [16]

Hayden has 300 dimes

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3 years ago

Read 2 more answers

Rick ordered a soda for $1.25 and wanted to order as many hotdogs as he could afford. Rick had $4.00 and each hotdog cost $0.75.

Alecsey [184]

Answer:

the answer is c, less than or equal to 4

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3 years ago