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kifflom [539]
3 years ago
7

Pls help will mark brainliest

Mathematics
1 answer:
Andreyy893 years ago
4 0

Answer:

1/ 4^2

Step-by-step explanation:

4^4 * 4^-6

We know that a^b * a^c = a^(b+c)

4^(4-6)

4^-2

We also know that a^-b = 1/a^b

1/4^2

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Your goal this week is to be online for a mean of only 60 minutes per day. For the first six days of the week, you are online 70
8_murik_8 [283]
60*7=420
70+60+65+40+78+62=375
420-375=45
You can only be online for 45 minutes on the seventh day to reach your goal
4 0
4 years ago
Read 2 more answers
What is the volume in cubic feet of a rectangular prism with a height of 8ft and width of 8ft and a length of 18th feet.
Hitman42 [59]

The volume of the rectangular prism is 1152 cubic feet (ft^{3}), If the rectangular prism have height of 8 feet and width of 8 feet and a length of 18th feet.

Step-by-step explanation:

              The given is,

                       Let, h - Height of the rectangular prism

                              w - Width of the rectangular prism

                                l -Length of the rectangular prism

Step:1

            From the given,

                              h = 8 feet

                              w = 8 feet

                               l = 18 feet

Step:2

          Formula for volume of Rectangular prism is,

                     V = whl

        Substitute the values of w, h and l,

                     V = ( 8 × 8 × 18 )

                        = 1152

                    V = 1152 cubic feet

Result:

           Thus the volume of the rectangular prism is 1152 cubic feet (ft^{3}), for the given rectangular prism have height of 8 feet and width of 8 feet and a length of 18th feet.

3 0
3 years ago
How to tell if an equation is independent dependent or inconsistent?
Keith_Richards [23]
The example for an inconsistent system of equations:
x + 2 y = 10 and x + 2 y = 20. If we try to solve it algebraically:
x = 10 - 2 y; 10 - 2 y + 2 y = 20; 10 = 20 ( not true ). We will with something that is not true. Graph of those equations shows 2 parallel lines. Therefore the system is inconsistent.
The system is dependent when we have equivalent equations. For example:
2 x + y = 5 and 4 x + 2 y = 10. If we try to solve this system, we will end up with: 0 = 0 ( true ). The graph of this system shows the same line. This system is dependent.
Finally, if we have just one solution for the system of equations then the system is independent. For example: x + y = 5 and  - x + 2 y = 10. When we add those equations: 3 y = 15; y = 15 : 3; y = 5; x + 5 = 5; x = 0. So we have just one solution ( x , y ) = ( 0, 5 ). The system of equations is independent.
7 0
4 years ago
Assume that a and b are the legs of a right triangle and C is the hypotenuse.
ale4655 [162]

Answer:

b = 48

Step-by-step explanation:

a = 20

b = ?

c = 52

a^2 + b^2 = c^2

20^2 + b^2 = 52^2

400 + b^2 = 2704

b^2 = 2704 - 400

b^2 = 2304

sqrt(b^2) = sqrt(2304)

b = sqrt(2304)

b = 48

6 0
4 years ago
Xx+yy=zyz what are the values of the letters?
deff fn [24]

Answer:

x=9

y=2

z=1

Step-by-step explanation:

xx+yy=zyz

xx can be divided by 11

yy can be divided by 11

zyz can be divided by 11

3 digit multiples of 11

110

121

132...

121=zyz because z=1 and y=2

121-22=99

xx=99

x=9

z=1

y=2

8 0
3 years ago
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