3 years ago

What is seven over twenty one take away one over twenty one in its simplest form

Mathematics

1 answer:

natulia [17]3 years ago

5 0

It would be 6/21 but simplified it would be 2/7

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Blank3-2Blank=71...what is the answer? Answer please

ollegr [7]

I think it’s 60 if that’s what your asking

6 0

3 years ago

48 = 4t + 12<br> How would I solve this someone please respond fast.

raketka [301]

Answer:

t=9

Step-by-step explanation:

Move all terms that don't contain

t to the right side and solve.t=9

8 0

3 years ago

Read 2 more answers

HELP When does expanding and simplifying a(b + c) result in a positive value for ac?

Reil [10]

Answer:

When c and a are positive or both are negative

Step-by-step explanation:

negative times negative equals positive so if a was negative and c was negative -a*-c= ac

Of course positive times positive equals negative so if a and c were positive we could do

a*c= ac

Hope I could help !

7 0

3 years ago

Mark is comparing prices of different brands before he goes shopping. Who has the best deal on ice cream? Brand Size & P

Mariana [72]

Answer:

Breyers is the correct answer

Step-by-step explanation:

$4.50/30 oz = .15

$15.36/128 oz = .12

$2.88/16 oz = .18

7 0

3 years ago

What is the value of cos(150°)?

baherus [9]

ANSWER

$-\frac{\sqrt[]{3}}{2}$

EXPLANATION

Given

$\begin{gathered} \cos \text{ 150} \\ \end{gathered}$

We can find cos 150 by using

$\begin{gathered} \cos (180-\theta)=-\cos \theta \\ \Rightarrow\cos (180-\theta) \\ =-\cos 30 \end{gathered}$

recall that

$\begin{gathered} \cos 30=\frac{\sqrt[]{3}}{2} \\ \end{gathered}$

Hence,

$\begin{gathered} \cos 150=-\cos 30 \\ =-\frac{\sqrt[]{3}}{2} \\ \end{gathered}$

Therefore, the value of cos 150 is

$-\frac{\sqrt[]{3}}{2}$

4 0

1 year ago