All categories

3 years ago

Whats 18÷19 ok im only in grade 5 so

Mathematics

2 answers:

Tems11 [23]3 years ago

6 0

If fraction: 18/19
if decimal: 0.947368421053 :)

anastassius [24]3 years ago

5 0

18÷19=0.94736....................

You might be interested in

Simplify: cos2x-cos4 all over sin2x + sin 4x

GrogVix [38]

Answer:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

Step-by-step explanation:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}$

Apply formula:

$\cos\left(A\right)-\cos\left(B\right)=-2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$ and

$\sin\left(A\right)+\sin\left(B\right)=2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$

We get:

$=\frac{-2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\sin\left(\frac{2x-4x}{2}\right)}{2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\cos\left(\frac{2x-4x}{2}\right)}$

$=\frac{-\sin\left(\frac{2x-4x}{2}\right)}{\cos\left(\frac{2x-4x}{2}\right)}$

$=\frac{-\sin\left(\frac{-2x}{2}\right)}{\cos\left(\frac{-2x}{2}\right)}$

$=\frac{-\sin\left(-x\right)}{\cos\left(-x\right)}$

$=\frac{-\cdot-\sin\left(x\right)}{\cos\left(x\right)}$

$=\frac{\sin\left(x\right)}{\cos\left(x\right)}$

$=\tan\left(x\right)$

Hence final answer is

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

6 0

3 years ago

Which of the following could be the lengths of the sides of a 45°-45°-90° triangle?

REY [17]

I think the answer is c

4 0

3 years ago

ASAP ASAP ASAP

Aleks04 [339]

Answer: 240cm cubed (the three)

Step-by-step explanation:

Length x width x height

6x4x10

7 0

3 years ago

One of the ideas that you have explored in previous courses is how to describe a set of data.

Setler79 [48]

Answer:

Step-by-step explanation:

M = (35 + 40 + 12 + 16 + 25 + 10)/5

M = 138/5

M = 27.6

7 0

3 years ago

HELP PLEASE!! I WILL GIVE BRAINLIEST

NISA [10]

77 feet I according to my calculations :)

6 0

3 years ago