3 years ago

Santiago walked 500 m

Mathematics

1 answer:

N76 [4]3 years ago

7 0

Answer:

500 X 7 = 3500, 3500m = 3.5 km

She walked 3.5 km in 1 week.

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Can someone help me?!

ser-zykov [4K]

Answer:

5 3/4 + 2 1/4 =y

Step-by-step explanation:

6 0

3 years ago

The machine described has standard deviation σ that can be fixed at certain levels by carefully adjusting the machine. What is t

Gennadij [26K]

Answer:

σ = 0.5102

Step-by-step explanation:

Y = volume filled,

µ = mean

It is a normal distribution

It follows that

0.95 = P (|Y − µ| < 1) = P (|Z| < 1 / σ)

so that

1 / σ = 1.96 ⇒ σ = (1 / 1.96)

⇒ σ = 0.5102.

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3 years ago

A roller coaster accelerated from rest to 55 m/s by the time it reached the first hill. The roller coaster took 15 seconds to cl

GalinKa [24]

Answer:

I believe the acceleration is 3.66666666667 m/s

Step-by-step explanation:

Acceleration formula: a = vf - vi / t

Initial velocity: 0 (I believe it was 0, as it wasn't moving in the beginning)

Final velocity: 55 m/s

Time: 15 s

Substituting values: 3.66666666667 = 55 - 0 / 15

4 0

3 years ago

What is the value of the expression below?<br> (V9)2 +10

Wittaler [7]

to find the value of this expression, it would be easiest to use the distributive property.

(V9)2 +10

= 18V+90V

= 108V

- cherry :)

8 0

3 years ago

Read 2 more answers

alex needs to buy compressed air to fill 5 empty cylindrical tanks for his store. each tank is 12 feet deep and has a radius of

Yanka [14]

Volume of a cylinder = the area of the base x height of the cylinder
Area of base = $\pi$ r^2
A = 6^2( $\pi$ )
A = 36 $\pi$
V = 36 $\pi$ x 12
V = 432 $\pi$

5 cylinders = 5V

5V = 5 x (432 $\pi$ )
5V = 2160 $\pi$

Final answer: Alex needs to buy 2160 $\pi$ or 6785.84 cubic feet worth of compressed air to fill all of the cylindrical tanks.

4 0

3 years ago