What is equvalint to 1/2a-4

Mathematics

1 answer:

marta [7]3 years ago

3 0

If your doing ireadys the answer is 1/2(a-8 but no negative 8 it’s just original 8

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(Trigonometry) Plz Help Me on This Problem

Stells [14]

1) In 365 days, Earth makes = 360 degree
So, In 1 day, It would be: 360/365 = 0.986 degree

2) We know, Ф / 360 * 2πr
0.986/360 * 2 * 3.14 * 93
1 / 365.11 * 584.04
Approx. 1.60 million miles

In short, Your Answer would be 1.60 million miles

3) We know, speed = Distance / Time
Here, distance = 1.60 million miles
Time = 24 hour

Substitute their values,
s = 1.60 / 24
s = 0.067 × 1,000,000
s = 66666.67

In short, Your Answer would be 66666.67 mph

Hope this helps!

4 0

3 years ago

What is the remainder of (2^91 x 6^27) divided by 7?

kondaur [170]

$2\equiv2\mod7$
$2^2\equiv4\mod7$
$2^3\equiv8\equiv1\mod7$

$91=3(30)+1$
$\implies2^{91}\equiv(2^3)^{30}\times2^1\equiv1^{30}\times2\equiv2\mod7$

$6\equiv-1\mod7$
$6^2=6\times6\equiv6(-1)\equiv-6\equiv1\mod7$

$27=2(13)+1$
$\implies6^{27}\equiv(6^2)^{13}\times6^1\equiv1^{13}\times6\equiv6\mod7$

$\implies2^{91}\times6^{27}\equiv2\times6\equiv12\equiv5\mod7$