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2 years ago

Look at the photo attached for the question, please help asap!

Mathematics

1 answer:

chubhunter [2.5K]2 years ago

7 0

Answer:

y ≥ - 0.8

Step-by-step explanation:

$\sqrt{25y^2 +40y+16}$ = 5y + 4

$\sqrt{(5y+4)^2}$ = 5y + 4

5y + 4 = 5y + 4 and 5y + 4 ≥ 0 ⇒ y ≥ - 0.8

y ∈ [ - 0.8 , ∞ )

- ( 5y + 4 ) = 5y + 4

10y = - 8

y = - 0.8

The answer is y ≥ - 0.8

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Answer:

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3 years ago

A cyclist rides in a circle with speed 5 m/s. What is his centripetal

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Option A

The centripetal acceleration is 1.32 $ms^{-2}$

Solution:

From given question,

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The formula for Centripetal acceleration is given as:

$a_c = \frac{v^2}{r}$

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Marizza181 [45]

Answer:

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