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vfiekz [6]
4 years ago
14

Which of the following is the radical expression of a 5/7

Mathematics
1 answer:
Alisiya [41]4 years ago
7 0
Choice of answers? ?????
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A large pizza at Palanzio's Pizza starts at $6.80 with a $0.90 charge per extra topping. A large pizza a Guido's Pizza starts at
vazorg [7]

Answer:

Palanzio's Pizza: Y= .90x+6.80

Giudo's Pizza: Y= .65x+7.30

.90x + 6.80= .65x + 7.30

.25x + 6.80= 7.30

.25x = .50

x = 2

8 0
3 years ago
What is the Greatest Common Factor of thepolynomial 3x - 3y ?
SVEN [57.7K]

Answer:

3

Step-by-step explanation:

8 0
3 years ago
What is the complex number z=−3+3√3i represented in polar form?<br><br><br> z=____cis(____)
maks197457 [2]

Answer:

<h2>6cis120°</h2>

Step-by-step explanation:

The general form of a complex number z = x+iy

If x = rcos\theta and y = rsin\theta

where r is the modulus of the complex number and \theta is the argument, z in polar form is represented as:

z =  rcos\theta+ rsin\theta

z = r(cos\theta+ isin\theta)

z = rcis\theta

Given the complex number z=−3+3√3i

r = \sqrt{x^{2}+y^{2}  }

r = \sqrt{(-3)^{2}+(3\sqrt{3})^{2}  } \\r = \sqrt{9+27} \\r = \sqrt{36}\\ r = 6

argument\\\theta = arctan \frac{y}{x} \\\theta = arctan \frac{3\sqrt{3} }{-3} \\\theta = arctan {-\sqrt{3} } \\\theta = -60 \deg

since the argument is negative and tan is negative in the 2nd and 4th quadrant,

In the second quadrant, theta = 180- 60 = 120°

On substituting r and theta, the complex number in polar form is expressed as 6cis120°

3 0
4 years ago
Solve for X: 2 ( × - 3 ) = 1.2-x
padilas [110]
When solving an equation, you must do the same thing to both sides or else it won't be equal

when dealing with one unknown (x) try to get the unknown on one side

2(x-3)=1.2-x
distribute or multiply 2 by x then -3

so (2 times x)+(2 times -3[remember negative times positive=negative])
2x-6=1.2-x
add 6 to both sides
2x=7.2-x
add x to both sides
3x=7.2
divide both sides by 3
x=2.4
8 0
4 years ago
Read 2 more answers
Two​ trains, Train A and Train​ B, weigh a total of 129 tons. Train A is heavier than Train B. The difference of their weights i
Crazy boy [7]

Answer:

One train weighs 30 tons and another train weighs 99 tons.

Step-by-step explanation:

30+99 adds up to 129

5 0
3 years ago
Read 2 more answers
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