3 years ago

What is the communitive property of addition?

Mathematics

1 answer:

Ludmilka [50]3 years ago

6 0

X+y or y+x
1+2 or 2+1

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I need help can someone help me please

Paladinen [302]

Answer:-6 is the answer

Step-by-step explanation:

8 0

3 years ago

What is 27/100 + 3/10?

Mariana [72]

Answer:

$\frac{57}{100}$

Step-by-step explanation:

The fractions need to have the same denominator to add or subtract them.

The least common denominator is 100, multiply $\frac{3}{10}$ by $\frac{10}{10}$ to give it the same denominator as the first term

$\frac{27}{100}$ + $\frac{30}{100}$ = $\frac{57}{100}$

8 0

3 years ago

Simplify the given expression below: 2 divided by the quantity of 2 plus 5i

kodGreya [7K]

<span>Remove the imaginary from the denominator.
</span> $\frac{2}{2 + 5i}$
$( \frac{2}{2 + 5i} )( \frac{2 - 5i}{2 - 5i} )$
$\frac{2(2 - 5i)}{(2 + 5i)(2 - 5i)}$
$\frac{4 - 10i}{4 - 10i + 10i - 25 i^{2} }$ $i^{2} = -1$
$\frac{4 - 10i}{4 + 25}$
$\frac{4 - 10i}{29}$ <span>

</span>

8 0

4 years ago

Plz hurry!!!! thank you!!!!

marin [14]

Answer:

∠A ≈ 19.47°

Step-by-step explanation:

As you know , the angle that tangent makes with the radius at the point of tangency is 90°.

∴∠OKA = 90°

As AO = 15 and OK = 5 ,

$sin(A) = \frac{OK}{AO}$