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3 years ago

The atomic number of an element B is 17. The number of electrons in its ion B will be:

Mathematics

1 answer:

loris [4]3 years ago

8 0

Answer:

Step-by-step explanation:

don't step answer. Because I am lol

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Brandon is building a desk that is 42 inches long. A piece of wood that he bought is 4 feet long. How much does Brandon have to

Ilya [14]

Answer:

6 inches

Step-by-step explanation:

there are 12 inches in a foot

4 ft * 12 = 48 inches

48 - 42 = 6

Cut off 6 inches

5 0

3 years ago

Read 2 more answers

Please help me with this

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

Both angles added together = 180 degrees. They both have a straight line as their base.

So let <ABC = x

Then <CBD = 3x Add the two angles

x + 3x = 180 Combine

4x = 180 Divide by 4

4x/4 = 180/4

x = 45

So 3x = 3*45 = 135

6 0

2 years ago

PLEASE HELP

katrin [286]

Answer:

3 + 4n -9 + 5n

9n - 6

3 0

3 years ago

Deidre is factoring the polynomial x2 + 2x - 24

AlexFokin [52]

4x-24 will be your correct awnser

6 0

3 years ago

Read 2 more answers

Simplify each algebraic expression.

GREYUIT [131]

Answer:

$\huge\boxed{\sf-2x+28}\\\\\huge\boxed{\sf 10x-4}\\\\\huge\boxed{\sf 56-5x}\\\\\huge\boxed{\sf x-13}$

Step-by-step explanation:

$\sf 2x + 4(7-x) \\\\Resolving \ Parenthesis\\\\2x + 28-4x \\\\Combining\ like\ terms\\\\2x-4x +28\\\\-2x + 28\\\\\rule[225]{225}{2}$

$\sf \\12x-(4+2x)\\\\12x-4-2x\\\\Combining \ like \ terms\\\\12x-2x - 4\\\\10x-4 \\\\\rule[22]{225}{2} \\2(10-x)+3(12-x) \\\\Resolving \ Parenthesis\\\\20-2x + 36 -3x\\\\Combining \ like \ terms\\\\20+36 -2x-3x\\\\56 - 5x \\\\\rule[225]{225}{2}$

$\sf 7(x-1)-6(x+1)\\\\Resolving \ Parethesis\\\\7x-7-6x-6\\\\Combining \ like \ terms\\\\7x-6x-7-6\\\\x - 13\\\\\rule[225]{225}{2}$

Hope this helped!

~AnonymousHelper1807

3 0

3 years ago