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2 years ago

Estimated 5.4÷2 1/2

Mathematics

2 answers:

aalyn [17]2 years ago

8 0

Answer:

2.16

Step-by-step explanation:

when you put the equation in the calculator, you get 2.16

Scorpion4ik [409]2 years ago

3 0

Answer:

2 (rounded down to the nearest whole number)

Step-by-step explanation:

5.4/2.5=2.16

Providing your wording of <em>estimated</em> - I will take that as you want to round down to the nearest whole number.

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What is the measurment of angle P

Airida [17]

Answer:

65°

Step-by-step explanation:

The sum of the angles of a triangle is always 180°. Meaning, ∠P + ∠Q + ∠R = 180.

(2x-9) + (2x+4) + x = 180

Combine like terms:

5x-5 = 180

5x = 185

x = 37

P = (2x - 9) = 2(37) - 9 = 74 - 9 = 65

4 0

3 years ago

Jack divided his fortune of 92,000 into 8 equal parts. he gave 4 parts to his wife, 1 part to his son and divided the last 3 par

trasher [3.6K]

Answer: 4600

Step-by-step explanation:

Jack divided his fortune of 92,000 into 8 equal parts. This means a part will be equal to:

(92000 ÷ 8) = 11500.

He gave 4 parts to his wife. This means his wife has:

(11500 × 4) = 46000.

1 part to his son means that his son has: (1 × 11500) = 115000.

He gave the last 3 parts and evenly it among 5 charities. This means:

(3 × 11500) = 34500 was shared among 5 charities. Each charity will get: (34500 ÷ 5) = 6900

To calculate how much more money did his son get than the charities will be:

11500 - 6900 = 4600

5 0

2 years ago

Precal help if you could could you answer both. Me finishing this helps me graduate.

oee [108]

Exercise 1:

The easiest way to compute powers of complex numbers is to write them in the form

$z = \rho e^{i\theta} = \rho(\cos(\theta)+i\sin(\theta))$

In this form, you have

$z^n = \rho^n e^{in\theta} = \rho^n(\cos(n\theta)+i\sin(n\theta))$

The magnitude of the number is given by

$z=a+bi \implies \rho = \sqrt{a^2+b^2}$

So, we have

$z=-1+\sqrt{3}i \implies \rho = \sqrt{1+3}=2$

As for the angle, we have

$z=a+bi \implies \theta = \text{atan2}\dfrac{b}{a}$

So, we have

$z=-1+\sqrt{3}i \implies \theta = \text{atan2}\left(\dfrac{-\sqrt{3}}{-1}\right) = -\dfrac{2\pi}{3}$

Finally,

$z=-1-\sqrt{3}i = 2\left(\cos\left( -\dfrac{2\pi}{3}\right) + i\sin\left( -\dfrac{2\pi}{3}\right)\right) \implies z^6 = 2^6\left(\cos\left( -4\pi\right) + i\sin\left(-4\pi\right)\right) = 64$

Exercise 2:

You simply have to compute the trigonometric function:

$\cos\left(-\dfrac{\pi}{4}\right) = \dfrac{\sqrt{2}}{2},\quad \sin\left(-\dfrac{\pi}{4}\right) = -\dfrac{\sqrt{2}}{2}$

So, we have

$z = \sqrt{2}\left(\dfrac{\sqrt{2}}{2} - i\dfrac{\sqrt{2}}{2}\right) = 1-i$

7 0

2 years ago

An object is moving at a speed of 850 miles per hour. Express this speed in meters per minute.

MAVERICK [17]

Answer:

it would be 1385

Step-by-step explanation: because 850 miles per hour converted into meter per min would be 22799.04 meters per sec and then u would Find the number in the whole number place 4 and look one place to the right for the rounding digit on the right side of the decimal point 7. Round up if this number is greater than or equal to 5 and round down if it is less than 5

So the answer is 1385

8 0

2 years ago

Read 2 more answers

Please help ill give you brainliest

mel-nik [20]

Answer:

Step-by-step explanation:

Th correct one is the third box

plz mark me brainliest

3 0

2 years ago