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2 years ago

When simplified, -x − x is:

2 answers:

8 0

Answer:
-2x

Explanation:
Lets put 1s in front of these x’s so that it is easier to explain.
-1x-1x
This is the same as -1-1, which gives you negative 2.
Now, put an x in front of that -2!
-2x. Boom, there’s your answer.

Hope this helps! mark brainliest if you can please :$

Mars2501 [29]2 years ago

7 0

Answer:

-x-x=-x

Step-by-step explanation:

hope this helps

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The angles in a triangle are in the ratio 1:2:3. Show that the triangle is a right - angled triangle.

Alja [10]

Answer:

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Respectively 1 : 2 : 3 is going to be 1 x , 2 x and 3 x so,

1 x + 2 x + 3 x = 180°

⇒ Simplify

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⇒ Divide by 6 on both sides to isolate x

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2 years ago

Using the following image, solve the problems below given that B is the midpoint of AC.

ladessa [460]

Answer:

AB = 4

BC = 4

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Step-by-step explanation:

Given, B is the midpoint of AC which means it divided the AC into two equal parts. Using this information we can write the following equation:

5x - 6 = 2x add 6 to both sides

5x = 2x + 6 subtract 2x from both sides

3x = 6 divide both sides by 3

x = 2 to find the length of AB, AC, and BC replace x with 2

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2 years ago

10. A cylindrical can has a base with a diameter of 6 cm. Its height measures 5 cm. What is the total surface area of the can?

eduard

Answer:

Total surface area of cylinderal can is 150.8 cm²

Step-by-step explanation: 

Given that a cylinderal can has base with a diameter of 6 cm and its height measures 5 cm.

So,

Radius = Diameter/2 = 6/2 = 3 cm

We know that,

TSA of cylinder = 2πr(h + r)

Substituting required values:

➝ TSA = 2 × 22/7 × 3(5 + 3)

➝ TSA = 44/ 7 × 3 × 8

➝ TSA = 1056/7

➝ TSA = 150.8 cm²

Hence,

Total surface area of cylinderal can is 150.8 cm²

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Step-by-step explanation:

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