2 years ago

Help asap!!!!!

Mathematics

1 answer:

svetlana [45]2 years ago

7 0

Answer:

12.5

68.5

Step-by-step explanation:

You might be interested in

anonymous 2 years ago If you were to solve the following system by substitution, what would be the best variable to solve for an

Ainat [17]

I'm sorry that I'm not in calculus, but hopefully I can help.
Personally, I would choose: D.) x; in the second equation ;
because it has easier numbers to figure out, you'll get it eventually...

7 0

3 years ago

A motor with an efficiency of 75% must supply 240 j of useful work. what amount of work must be supplied to the motor? j 180 j 3

Degger [83]

Work applied to motor is 320j.

6 0

3 years ago

Read 2 more answers

What are the first 17 multiples of 43.

dlinn [17]

43,86,129,172,215,258,301,344,387,430,473,516,559,602,645,688,and 731

6 0

3 years ago

Help, I don’t know what I’m doing Trigonometry

spin [16.1K]

Answer:

$\frac{\sqrt{3} }{6}$

Step-by-step explanation:

using the 30- 60- 90 triangle for exact values , then

tan60° = $\sqrt{3}$ , and

cot60° = $\frac{1}{tan60}$ = $\frac{1}{\sqrt{3} }$

cos60° = $\frac{1}{2}$

cot60° cos60°

= $\frac{1}{\sqrt{3} }$ × $\frac{1}{2}$

= $\frac{1}{2\sqrt{3} }$ ← rationalise the denominator by multiplying by $\frac{\sqrt{3} }{\sqrt{3} }$

= $\frac{1}{2\sqrt{3} }$ × $\frac{\sqrt{3} }{\sqrt{3} }$

= $\frac{\sqrt{3} }{6}$

5 0

2 years ago

Read 2 more answers

Which is the inverse of the function f(x) = x2 − 4? y = x2 − 4

4vir4ik [10]

Answer:

$\sqrt{x+4} \\\\-\sqrt{x+4}$

Step-by-step explanation:

8 0

3 years ago