3 years ago

Which fractions are equivalent to -4/9 ?

Mathematics

1 answer:

Karo-lina-s [1.5K]3 years ago

4 0

B,C, d are right answers

A is the only not correct answer

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I don't understand???? I'll give the brainliest!!!!!

olasank [31]

Answer:

Option A is the correct option.

Step-by-step explanation:

${a}^{2} + {b}^{2} - 2ab \: \cos \: c \: = {c}^{2} \\ a = 4 \\ b = 5 \\ c = 2 \\ \\ 2ab \: cos \: c = {a}^{2} + {b}^{2} - {c}^{2} \\ \: \: \: \: \: \: \: \: = {(4)}^{2} + {(5)}^{2} - {(2)}^{2} \\ \: \: \: \: \: \: \: \: = 16 + 25 - 4 \\ \: \: \: \: \: \: = 41 - 4 \\ \: \: \: \: \: \: = 37$

Hope this helps...

Good luck on your assignment...

6 0

3 years ago

Select all angle measures for which cos0= 1/2

mrs_skeptik [129]

Answer:

cos -60° = $\frac{1}{2}$ ,

cos 660° = $\frac{1}{2}$

Step-by-step explanation:

hope it helps

6 0

3 years ago

Difference between<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20%20-%20%20%5Cfrac%7B3%7D%7B10%7D%20" id="TexF

vampirchik [111]

Step-by-step explanation:

see below

$\longrightarrow \: \frac{4}{5} - \frac{3}{10}$

$\longrightarrow \: \frac{8 - 3}{10}$

$\longrightarrow \: \cancel{\frac{5}{10} }$

$\longrightarrow \: \frac{1}{2}$

3 0

2 years ago

Read 2 more answers

If $20,900 is invested at an interest rate of 8 percent per year, find the value of the investment at the end of 5 years for the

Katena32 [7]

Answer:

annual

Step-by-step explanation:

You make a single deposit of $100 today. It will remain invested for 4 years at 8% per year compounded annually. What will be the future value of your single deposit at the end of 4 years?

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3 years ago

Help me in e plz and then explain

horsena [70]

You have to take a better picture

4 0

4 years ago