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Natasha2012 [34]
2 years ago
10

Evaluate. 4^3−4÷2⋅5 20 40 54 150

Mathematics
1 answer:
nika2105 [10]2 years ago
3 0

Answer:

150

Step-by-step explanation:

1. 4^3 = 4 x 4 x 4 = 16 x 4 = 64

2. 64 - 4 = 60

3. 60 ÷ 2 = 30

4. 30 ⋅ 5 = 150

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What do landforms include
olganol [36]

Answer:

A landform is a feature on the Earth's surface that is part of the terrain. Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills.

7 0
2 years ago
Solve each system of equation using any method.<br> 7 x + y = 5 2x - y = 4
nexus9112 [7]

Answer:

x = 1

y= -2

Step-by-step explanation:

to solve this system of equation , simultaneously using the substitution method

we say let

7 x + y = 5 ............................................. equation 1

2x - y = 4 ................................................... equation 2

from equation 2

2x - y = 4 ................................................... equation 2

2x - 4 = y

y = 2x -4.......................................................... equation 3

put the value of the y = 2x -4 into equation 1

7 x + y = 5 ............................................. equation 1

7x + 2x - 4 = 5

9x-4 = 5

9x = 5 + 4

9x = 9

divide both sides by the coefficient of x which is 9

9x/9 = 9/9

x = 1

substitute the value of x = 1 into equation 3

y = 2x -4.......................................................... equation 3

y = 2(1) -4

y = 2 - 4

y = -2

to check if you are correct put the value of x and y into any of the equations and you will see that the left hand side will be equal to the right hand side.

2x - y = 4 ................................................... equation 2

2(1) -(-2) = 4

2 + 2 = 4

4=4................................... proved

7 0
3 years ago
Help me with number 1 please
viva [34]
17 25 and 1/2 34. 42 and 1/2
3 0
3 years ago
Please help... 12! - 9^3
Naily [24]

Answer:

-729

Step-by-step explanation:

-9^3 = -9 x (-9) x (-9) =

          -9x(-9) = 81

                   81x(-9)=-729

4 0
3 years ago
Read 2 more answers
It takes us of ribbon to make a hair bow. How much ribbon is needed to make 9 bows?
kherson [118]

Steps to Solve:

1. Simplify \frac{7}{2}: 3.5

2. Multiply 3.5 * 9: 31.5

Answer:

A = 31.5 yd

Notes:

N/A

3 0
3 years ago
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