3 years ago

I need help on this fast pls help me

Mathematics

1 answer:

andreev551 [17]3 years ago

6 0

Answer:

Choice 2) 5x+15

Step-by-step explanation:

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What does the digit 7 represent in 701, 280?

stepladder [879]

Answer:

seven hundred thousand place

Step-by-step explanation:

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3 years ago

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1) The astronaut's sense of imbalance in a space flight is due to the rotation of a device in which he or she feels a fictitious

max2010maxim [7]

Answer:

n = 0.38 rotation per second

Step-by-step explanation:

The device rotates according to the mathematical equation :

$n=\dfrac{g^{0.5}}{2\pi r^{0.5}}$ ...(1)

Where n is the rotational speed and is measured in rotations per second (s).

r is radius of the circulator and is measured in meters (m).

We need to find the rotational speed when radius is 1.7 m. Put r = 1.7 m in equation (1).

$n=\dfrac{(9.8)^{0.5}}{2\pi \times (1.7)^{0.5}}\\\\=0.38\ \text{rotations per second}$

Hence, the rotational speed is 0.38 rotation per second.

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3 years ago

Paul has a collection of nickels and

VARVARA [1.3K]

Answer:

#nickels = 50

#dimes = 100

Step-by-step explanation:

system of equations:

n + d = 150

.05n + .10d = 12.50

let n = '150 - d' and substitute this into the second equation

.05(150-d) + .10d = 12.5

7.5 - .05d + .10d = 12.5

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d = 5/.05

d = 100

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3 years ago

How do I write 4,332 in scientific notation??

rodikova [14]

Answer:

4.332 x 10 to the 3 power I do believe

Step-by-step explanation:

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Find the area of the parallelogram. b = 90 ft h = 2 yd The area of the parallelogram is __ft² or __yd².

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540 ft^2 because 90x6=540 2 yards = 6 feet

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3 years ago