2 years ago

2. Ray found the perimeter of the window in

Mathematics

1 answer:

hjlf2 years ago

3 0

2 feet

Step-by-step explanation:

4+4= 8

12-8=4

4 divided by 2= 2 feet :)

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How many solutions does this equation have 3x + 5 = 2x + 5 + x

ki77a [65]

Answer:

True for all x

Step-by-step explanation:

3x + 5 = 2x + 5 + x

3x + 5 = 3x + 5

3x = 3x

0 = 0

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2 years ago

According to the order of operations, which of the following should be evaluated first? exponents multiplication or division exp

eduard

The appropriate choice is ...
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2 years ago

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4. How fast was a driver going if the car left skid marks that were 32 feet long on dry concrete? (The coefficient of friction i

Monica [59]

Answer:

$v_{o} \approx 31.247\,mph$

Step-by-step explanation:

The deceleration experimented by the car is the product of kinetic coefficient of friction and gravitational constant:

$a = \mu_{k}\cdot g$

$a = (1.02)\cdot \left(32.174\,\frac{ft}{s^{2}} \right)$

$a = 32.817\,\frac{ft}{s^{2}}$

The initial speed is computed from the following kinematic expression:

$v^{2} = v_{o}^{2} - 2\cdot a \cdot \Delta s$

$v_{o} = \sqrt{v^{2}+2\cdot a\cdot \Delta s}$

$v_{o} = \sqrt{\left(0\,\frac{ft}{s} \right)^{2}+2\cdot \left(32.817\,\frac{ft}{s^{2}} \right)\cdot (32\,ft)}$

$v_{o}\approx 45.829\,\frac{ft}{s}$

$v_{o} \approx 31.247\,mph$

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2 years ago

What is angle A in the following equation?

Lostsunrise [7]

Answer:

55 i think

Step-by-step explanation:

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2 years ago

Find the amount after 2 years for 25000 at 10% pa compounded annually and halfyearly

Molodets [167]

Answer:

8358.7

Step-by-step explanation:

I think. I need someone to verify

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2 years ago