All categories

3 years ago

Please find the square root of 64.

Mathematics

1 answer:

Alexeev081 [22]3 years ago

7 0

You have r^2 = 64 and want to find the square root of 64, which we'll call r.

√(r^2) = r = plus or minus √64

or: r = plus or minus 8

You might be interested in

What are three numbers whose products are 9000

Ne4ueva [31]

300*30*1 = 9000
4500*2*1 = 9000
125*8*9 = 9000

6 0

2 years ago

Read 2 more answers

You are trying to cast four roles for a play. 12 actors try out, including sir Ian McKellen and Patrick Stewart. the director te

Komok [63]

Answer:

6,840 casts

Step-by-step explanation:

Assuming that every actor can play each of the 4 roles and that each role is different, the number of possible casts including at least one of sir Ian and Patrick is given by the total number of possible casts (permutation of 4 out of 12 actors), minus the number of casts without sir Ian and Patrick (permutation of 4 out of 10 actors):

$n=\frac{12!}{(12-4!)} -\frac{10!}{(10-4)!}\\n=(12*11*10*9)-(10*9*8*7)\\n=6,840\ casts$

There are 6,840 possible casts.

8 0

3 years ago

Geometry homework help please?

Tema [17]

Add them all up then round the answer to yget

4 0

3 years ago

Write the equation in standard form for the circle with center (0, -6) and radius 7.

LUCKY_DIMON [66]

Step-by-step explanation:

the equation of circle is given by

$(x - h) {}^{2} + (y - k) {}^{2} = {r}^{2} \\ (x - 0) {}^{2} + {(y + 6)}^{2} = {7}^{2} \\ {x }^{2} + {y}^{2} + 12y + 36 = 49 \\ {x }^{2} + {y}^{2} + 12y = 13$

4 0

2 years ago

Points a,b and c are collinear and in that order. If AC=3x+3, AB=-1+2x, and Bc=11, find x and AC

zimovet [89]

The answers are:

AC = AB + BC

3x+3 = -1+2x+11

3x-2x = -1-3+11

x = 7

AC = 3x+3 x = 7

AC = 3x7+3

AC = 24

Hope it helps!

4 0

2 years ago