3 years ago

Please help me on this question

Mathematics

1 answer:

s2008m [1.1K]3 years ago

4 0

It’s d 30% I believe

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3x + 4y = 14 x = 2y - 12 cordanit plane

BabaBlast [244]

Answer:

(- 2, 5 )

Step-by-step explanation:

Given the 2 equations

3x + 4y = 14 → (1)

x = 2y - 12 → (2)

Substitute x = 2y - 12 into (1)

3(2y - 12) + 4y = 14 ← distribute and simplify left side

6y - 36 + 4y = 14

10y - 36 = 14 ( add 36 to both sides )

10y = 50 ( divide both sides by 10 )

y = 5

Substitute y = 5 into (2) for corresponding value of x

x = 2(5) - 12 = 10 - 12 = - 2

Solution is (- 2, 5 )

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3 years ago

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Kipish [7]

Answer: 52.7 Fº

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What is the value of t=1 ∑³ (4 x 1/2^t-1)

Stels [109]

Answer:

Step-by-step explanation:

$\sum\limits_{t=1}^{3}(4\cdot(\frac{1}{2})^{t-1})$

This is the sum of the first three terms of a geometric sequence, where the first term is 4 and the common ratio is ½.

We can use a formula to find the sum, or, since there's only three terms, we can find the value of each term then add up the results.

4 · (½)¹⁻¹ = 4

4 · (½)²⁻¹ = 2

4 · (½)³⁻¹ = 1

4 + 2 + 1 = 7

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What is the value of -2(x + 3)

matrenka [14]

Answer:

2x+6 period

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Select the correct answer. What is the factored form of this expression? 216p^6+1

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Answer:

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Step-by-step explanation:

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