2 years ago

Solve the system of equations by substitution. Simplify your answer. Write the

Mathematics

1 answer:

pychu [463]2 years ago

4 0

Answer:

x = 5 y = 2

Step-by-step explanation:

3x + 2(3x - 13) = 19

3x + 6x - 26 = 19

9x = 45

x = 5

y = 3(5) - 13

y = 15 - 13

y = 2

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Factorise<br>ab+cb+ad+cd

sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

yeet

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2 years ago

Use the diagram of the right triangle above and round your answer to the nearest hundredth.

Yakvenalex [24]

Answer:

value of a = 6.93 m

hence , (b.)

Step-by-step explanation:

the given triangle is a right angled triangle, so

by using trigonometry.

=》

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and we know,

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so, by above values of tan ( a ) we get,

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3 years ago

How many solutions does 7x=-10+8x

iogann1982 [59]

Answer:

one: x=10

hope this helps

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3 years ago

Another one lol(picture)

Andreyy89

Look up the law of sines, I suggest Khan Academy. It is better if you know how to do it, it is very useful.

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3 years ago

Square root of 8 times square root of 32

fredd [130]

in decimal form it is 45.2

in exact form it is 32 squareroot 2

5 0

2 years ago