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3 years ago

Helped needed! 20 points and brainliest of answered right !

Mathematics

1 answer:

svp [43]3 years ago

5 0

Answer:

1. Cluster sampling

2. When finding a fair sample

3. Simple random sampling

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Need help

ira [324]

Formula for the volume of a cylinder is pi radius squared times height so this one would be pi times 25 times 4 which approximately equals 314

4 0

3 years ago

Read 2 more answers

2. The robot was initially placed at position (6,9), and at = 2 seconds, its position is (10,15).

qaws [65]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ 6 &,& 9~) 
% (c,d)
&&(~ 10 &,& 15~)
\end{array}~~~ 
% distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
d=\sqrt{(10-6)^2+(15-9)^2}\implies d=\sqrt{4^2+6^2}\implies d=\sqrt{52}
\\\\\\
d\approx 7.2$

what's its speed? well, it traveled √(52) in 2 seconds, so is simply √(52)/2, which is about 3.6 units per second.

4 0

3 years ago

(6x + 5) ° (3x + 4)º A)16 B)10 C) 6 D) 9 E) 14

REY [17]

Answer:

i think it is C sorry if it is wrong.

Step-by-step explanation:

join zoom: 982 6380 2701 and 9H92fF

7 0

3 years ago

Read 2 more answers

-10.9p + 3.9 = -9.18

Debora [2.8K]

Steps to solve:

-10.9p + 3.9 = -9.18

~Subtract 3.9 to both sides

-10.9p = -13.08

~Divide -10/9 to both sides

p = 13.08/10.9

p = 1 1/5

Best of Luck!

5 0

3 years ago

HELP! WILL GIVE BRANLIEST!! No links please!

Whitepunk [10]

Answer:

x=23

m<1=161

m<2=19

Step-by-step explanation:

7x+x-4=180

8x+4=180

8x=184

x=23

m<1: 7(23) = 161

m<2: (23-4) = 19

6 0

3 years ago