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VLD [36.1K]
3 years ago
13

I don’t get this someone answer this for me please show all work

Mathematics
2 answers:
Paraphin [41]3 years ago
7 0

Answer:

5x=2x−4−2

Subtract 2 from −4 to get −6.

5x=2x−6

Subtract 2x from both sides.

5x−2x=−6

Combine 5x and −2x to get 3x.

3x=−6

Divide both sides by 3.

x= -6/3

​

 

Divide −6 by 3 to get −2.

x=−2

Step-by-step explanation:

Goshia [24]3 years ago
5 0

Answer:

Step-by-step explanation:

 {-6 + 2 = -4 ; if two numbers have different sign, subtract and the result will have the sign of  the bigger number}

4x = 2x - 6 + 2            

4x = 2x - 4

Subtract 2x from both sides both sides

4x-  2x = 2x - 2x - 4

2x = -4

Divide both sides by 2

x = -4/2

x = -2

 

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8) Sandy tells you that she drew a right triangle with the side lengths of 8.4 cm, 14 cm, and 11.2 cm.
diamong [38]

Answer:

Yes, she can drew a right triangle with these sides

Step-by-step explanation:

To answer this question we first have to prove the Pythagorean theorem

h = hyoptenuse

a = leg 1

b = leg2

h² = a² + b²

We have to replace the values ​​that they gave us in this formula

The hypotenuse always has to be the longest side of a right triangle

(14cm)² = (11.2cm)² + (8.4cm)²

196cm² = 125.44cm² + 70.56cm²

196cm² = 196cm²

As we can see, equality is fulfilled, so she is correct

3 0
4 years ago
The diameter of the moon is about 3500 km. Approximate the surface area of the moon using the formula for the surface area of a
horrorfan [7]

Answer:

3.8465 *10^7 square kilometers

Step-by-step explanation:

The surface area of a sphere can be found using the formula SA=4\pi r^2. Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

SA=4\pi r^2\\SA = 4 \pi (1750)^2\\SA = 4 \pi *3,062,500\\SA =38,465,000

The surface area of the moon is about 38,465,000 square kilometers. Write this is scientific notation using base. 3.8465 *10^7

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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thats the answer
Hope this Helped :D
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