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3 years ago

what if 7 dogs are in a room a man with a dog coms in and takes two and leaves his which has 3 pups how many dong are there

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

7 - 2 + 3 = 8

I am Lyosha [343]3 years ago

4 0

Answer:

Step-by-step explanation:

9 / 7 - 2 = 5 + 3 = 8 plus the Dog the man left behind, it would be 9

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In AOPQ, m2O = (2x – 5)º, m P = (3x – 8)°, and mZQ = (10x – 17).<br> What is the value of x?

Misha Larkins [42]

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Answer:

x = 14

Step-by-step explanation:

The sum of angles in a triangle is 180°:

∠O +∠P +∠Q = 180°

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A projectile is fired into the air with an initial vertical velocity of 160 ft/sec from ground level. How many seconds later doe

djverab [1.8K]

The maximum height of the projectile is the maximum point that can be gotten from the projectile equation

The projectile reaches the maximum height after 5 seconds

The function is given as:

$\mathbf{h(t) = -16t^2 + 160t}$

Differentiate the function with respect to t

$\mathbf{h'(t) = -32t + 160}$

Set to 0

$\mathbf{h'(t) = -32t + 160 = 0}$

So, we have:

$\mathbf{-32t + 160 = 0}$

Collect like terms

$\mathbf{-32t =- 160 + 0}$

$\mathbf{-32t =- 160}$

Solve for t

$\mathbf{t = \frac{- 160}{-32}}$

$\mathbf{t = 5}$

Hence, the projectile reaches the maximum after 5 seconds