2 years ago

Y = 4x - 7 What is the slope?

Mathematics

1 answer:

makkiz [27]2 years ago

3 0

Answer:

(4x the answer ) can you help with my question

Step-by-step explanation:

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Rom4ik [11]

Answer:

∠z is 79°

Step-by-step explanation:

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2 years ago

Simplify the algebraic expression (8x + 16y)/2 + 4(x - y)

Karo-lina-s [1.5K]

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2 years ago

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1/2(8a+200b)<br><br> Is the answer 4a+100b?

kaheart [24]

Answer:

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Step-by-step explanation:

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2 years ago

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Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

8090 [49]

Answer:

tanΘ = - $\frac{12}{5}$

Step-by-step explanation:

Using the trigonometric identities

• sin²x + cos²x = 1, hence

cosx = ± √(1 - sin²x )

• tanx = $\frac{sinx}{cosx}$

given sinΘ = $\frac{12}{13}$ , then

cosΘ = ± $\sqrt{1-(12/13)^2}$

Since Θ is in the second quadrant where cosΘ < 0, then

cosΘ = - $\sqrt{1-\frac{144}{169} }$

= - $\sqrt{\frac{25}{169} }$ = - $\frac{5}{13}$

tanΘ = $\frac{\frac{12}{13} }{\frac{-5}{13} }$

= $\frac{12}{13}$ × - $\frac{13}{5}$ = - $\frac{12}{5}$

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2 years ago

Estimate the product of 3.9 and 4.6 using mental math. Explain the method you used

tiny-mole [99]

The etimated answer would be 20. The method that I used is I rounded 3.9 to 4 and 4.6 to 5 and then I mutiplied. Hope I helped

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2 years ago