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3 years ago

Which of the following statements are true?

Mathematics

1 answer:

Aneli [31]3 years ago

4 0

Answer: It’s A

Step-by-step explanation:

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Cualnes el area del rombo si sus medidas en rectangulo son 12 y 5<br>

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3 years ago

What is 25% of 300? *

Rina8888 [55]

Answer:

Step-by-step explanation:

OF means multiplication!

25 as a decimal is

0.25 x 300 =

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3 years ago

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vlabodo [156]

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3 years ago

Solve the given system by the substitution method <br>5x + y 19 <br>7x-2y = 13

lesya692 [45]

Answer:

x = 3 , y = 4

Step-by-step explanation:

5x + y = 19 --------- ( 1 )

=> y = 19 - 5x

7x - 2y = 13 ------------ ( 2 )

Substitute y in ( 2 ) :

7x - 2( 19 - 5x ) = 13

7x - 38 + 10x = 13

17x = 13 + 38

17x = 51

x = 3

Substitute x in ( 1 ) :

5x + y = 19

5( 3 ) + y = 19

15 + y = 19

y = 19 - 15

y = 4

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3 years ago

Will mark Brainlest help me to multiply it step by step without using calculator

Fynjy0 [20]

Answer:

$\displaystyle\theta = {30}^{ \circ}$

Step-by-step explanation:

we would like to solve the following equation:

$\displaystyle\sin( \theta) = \frac{5}{10}$

notice that, the fraction can be reduced therefore reduce fraction:

$\displaystyle\sin( \theta) = \frac{ \cancel{5 \: }}{ \cancel{1 0} _{2} }$

$\displaystyle\sin( \theta) = \frac{1}{2}$

by trigonometric value table we obtain:

$\displaystyle\sin( \theta) = \sin( {30}^{ \circ} )$

get rid of sin:

$\displaystyle\theta = {30}^{ \circ}$

and we are done!

7 0

3 years ago

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