3 years ago

Work out the value of: 3x + 2y When x = -3 and y = -4

Mathematics

2 answers:

Mekhanik [1.2K]3 years ago

8 0

$3( - 3) + 2( - 4) \\ - 9 - 8 = - 17$

Fiesta28 [93]3 years ago

5 0

Answer:

-17

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Solve for x. 1/2x + 3 = 2/3x + 1

makvit [3.9K]

Answer:

x = 12

Step-by-step explanation:

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multiply through by 6 ( the LCM of 2 and 3 ) to clear the fractions

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1 year ago

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cluponka [151]

Answer:

The approximate measure of angle K is 34°

Step-by-step explanation:

In ΔJKL

∠L = 105°

JK = 4.7

JL = 2.7

Sine Rule:

$\frac{SinA}{a} = \frac{SinB}{b}= \frac{SinC}{c}$

So, $\frac{SinL}{JK} = \frac{SinK}{JL}\\\frac{SinL}{4.7} = \frac{SinK}{2.7}\\\frac{Sin 105}{4.7} = \frac{SinK}{2.7}\\\frac{Sin 105 \times 2.7}{4.7} = SinK\\\frac{(0.9659 \times 2.7)}{4.7} = Sin K\\\frac{2.60793}{4.7} = Sin K\\0.5549 = Sin K\\Sin^{-1}(0.5549)= K\\K = 33.70$

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So, Option B is true

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3 years ago

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago