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Juliette [100K]

3 years ago

6

g Determine if the statement is true or false. A linear system with three equations and five variables must be consistent. True

False Justify your answer.

1 answer:

Naya [18.7K]3 years ago

7 0

Answer: true

Step-by-step explanation: I don't really know how to explain it but i did this exact same question in sixth grade

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A hobby store marks up remote-controlled cars 25%. The original

aksik [14]

Answer: $37.50

Explanation:
1. Turn 25% into a decimal by removing the “%” and placing a “0.” in front of it. (0.25)
2. Multiply the decimal (0.25) by the original price of the car (30). (0.25x30=7.5)
3. Add 7.5 to 30 to get the answer. (7.5+30=37.5=$37.50)

7 0

3 years ago

Some equilateral triangles are not isosceles.<br> O A. True<br> O B. False

kramer

ANSWER

THE ANSWER IS FALSE

Step-by-step explanation:

false

5 0

2 years ago

Read 2 more answers

a) find center of mass of a solid of constant density bounded below by the paraboloid z=x^2+y^2 and above by the plane z=4.(b) F

slava [35]

Answer: x-bar = y-bar = 0 whereas z-bar = 8/3

M= (c^2)/8 which is intern equal to 2 $\sqrt{2}$

Step-by-step explanation:

Find the area, by setting the limits as

= $4\cdot \int _0^{\frac{\pi }{2}}\int _0^2\int _{r^2}^4\:rdzdrd\theta$

$=4\cdot \int _0^{\frac{\pi }{2}}\int _0^2r\cdot \:4-r^3drd\theta$

$=4\cdot \int _0^{\frac{\pi }{2}}4d\theta$

$=8\pi$

Therefore;

Mxy= $\int _0^{2\pi }\int _0^2\int _{r^2}^4\:zrdzdrd\theta$

z-bar = 8/3

M= 8 $\pi$ dividing it into two volume gives us = 4 $\pi$

means $4\pi =\int _0^{2\pi }\int _0^{\sqrt{c}}\int _r^c\:rdzdrd\theta$

$4\pi =\left(\pi c^2-2\pi \frac{c^{\frac{3}{2}}}{3}\right)$

c=2 $\sqrt{2}$

5 0

3 years ago

Solve the radical equation.

Artist 52 [7]

Hello, I Am BrotherEye

Answer:

x -1 = Sqrt6

Step-by-step explanation:

D.) Is the Proper Answer

8 0

2 years ago

Read 2 more answers

HOW DO YOU DO THIS??????????

Alexeev081 [22]

From 9:00 am to 9:00pm, that's a total of 12 hours,
so 12 of the 20 hours are charged at a rate of 0.25 dollar per hour, and the other 8 hours (20-12=8) are charged at a rate of $0.06 per hour.
the answer is b.
it should be 0.06 though, not 0.6

5 0

3 years ago