3 years ago

Help explain for brainlist

Mathematics

2 answers:

Lina20 [59]3 years ago

7 0

Answer:

C. 8

Step-by-step explanation:

$\because \: {s}^{3} = 64 \\ s = \sqrt[3]{64} \\ s = 4 \\ side \: of \: cube = 4 \: units \\ when \: side \: is \: halved \\ new \: side \: length = \frac{4}{2} = 2 \\ \: new \: volume = {2}^{3} = 8 \: cubic \: units$

lorasvet [3.4K]3 years ago

5 0

Hi the answer is c hope this helps

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Bearings And Vectors • The bearing of X from Y is 045 and the bearing of Z from Yis 145, where X, Y and Z are three points in th

zavuch27 [327]

9514 1404 393

Answer:

185°

Step-by-step explanation:

The triangle internal angle at Y is 145° -45° = 100°. Since the triangle is isosceles, the internal angles at X and Z are both (180° -100°)/2 = 40°. Then the bearing of Z from X is the bearing of Y from X less the internal angle at X:

(45° +180°) -40° = 185°.

Z from X is 185°.