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3 years ago

Please try to do it this is where we help each other

Mathematics

2 answers:

defon3 years ago

5 0

Answer:

1. x^8

2. x^8

3. 1024

4. -21a^4

5. z^10

6. -9x^7

7. 42r^7

8. b^7

9. 8a^11

10. 12p^12

Step-by-step explanation:

mr Goodwill [35]3 years ago

5 0

mark him brainlyist !!

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A cube-shaped item needs to be painted. The item’s edge length is 2 cm. What is the total surface area that will be painted?

Vinil7 [7]

Each face of the cube has an area of 4cm^2 (2*2 = 4). A cube has six faces so the total surface area is 24cm^2 (4cm^2*6).

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3 years ago

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7x - 2(3x - 5) = 26

Reptile [31]

Answer:

x=16

Step-by-step explanation:

7x−2(3x−5)=26

Use the distributive property to multiply −2 by 3x−5.

7x−6x+10=26

Combine 7x and −6x to get x.

x+10=26

Subtract 10 from both sides.

x=26−10

Subtract 10 from 26 to get 16.

x=16

Graph if needed:

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2 years ago

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Solve the equation X=

4vir4ik [10]

Step-by-step explanation:

I think the answer is x=70

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1 year ago

Rationalise the denominator by 6 root 7 minus 1

nikklg [1K]

Answer:

Assuming the numerator was 1.

$(6\sqrt{7}+1)/251$

Step-by-step explanation:

Assuming the numerator was 1.

$1/(6\sqrt{7} -1)\\ (6\sqrt{7}+1)/((6\sqrt{7} - 1)(6\sqrt{7} + 1))\\ (6\sqrt{7}+1)/((6\sqrt{7})^2 + 6\sqrt{7} - 7\sqrt{7} - 1)\\(6\sqrt{7}+1)/((6\sqrt{7})^2 - 1)\\(6\sqrt{7}+1)/((36*7 - 1)\\(6\sqrt{7}+1)/251$

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2 years ago

If you can help please do! Thank you!

Aleks [24]

Answer:

see explanation

Step-by-step explanation:

The diagonals of a parallelogram bisect each other , then

CO = OA = b

DO = OB = a

(a)

CA = CO + OA = b + b = 2b

(b)

DC = DO + OC = a - b

(c)

CB = CO + OB = b + a = a + b

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2 years ago