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2 years ago

SOLVE THE SIMULATENOUS EQUATIONS Y=X-2 AND Y= 3X+5

Mathematics

1 answer:

natta225 [31]2 years ago

3 0

Answer: y = x-2

y = 3x + 5

x-2 = 3x+5

x+3x = 5+2

4x = 7

x = 7/4

y = x-2

y = 7/4 - 2

y = 7-8/4

y = -1/4

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Read 2 more answers

write an expression for the sequence of operations described below. add s to t, add the result to r, then raise what you have to

Kobotan [32]

Answer:

$(s+t+r)^7$

Step-by-step explanation:

<u>Sequential Operations </u>

Mathematical operations can be done in sequence or in batches if they are of the same type. For example, we can add many terms in one single operation, but we cannot add and multiply in one go, because there are priorities when dealing with products and sums. Same happens with powers.

In our problem we are required to perform a sequence of operations like follows

Add s to t:

$s+t$

Add the result to r

$s+t+r$

Raise what you have to the 7th power

$\boxed{(s+t+r)^7}$

This is the final result

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3 years ago

How do I solve this problem

Vaselesa [24]

C = 84 degrees

A = 2B
C = A + 20
A + B + C = 180

A = 2B
A/2 = B

A + (A/2) + (A+20) = 180
multiply each side by 2
2A + A + 2A + 40 = 360
combine like terms
5A + 40 = 360
subtract 40 from both sides
5A = 320
divide both sides by 5
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C = A + 20
C = 64 + 20
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2 years ago

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nikklg [1K]

Answer:

25 $z^{4}$ + 30z³ + 29z² + 12z + 4

Step-by-step explanation:

(5z² + 3z + 2)²

= (5z² + 3z + 2)(5z² + 3z + 2)

Each term in the second factor is multiplied by each term in the first factor, that is

5z²(5z² + 3z + 2) + 3z(5z² + 3z + 2) + 2(5z² + 3z + 2) ← distribute parenthesis

= 25 $z^{4}$ + 15z³ + 10z² + 15z³ + 9z² + 6z + 10z² + 6z + 4 ← collect like terms

= 25 $z^{4}$ + 30z³ + 29z² + 12z + 4

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2 years ago