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jarptica [38.1K]
3 years ago
10

Solve 6 1/2 + 7 3/8 - 6 1/2

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
3 0

Answer:

Step-by-step explanation:

6 1/2 - 6 1/2 + 7 3/8 =

0 + 7 3/8 = 7 3/8

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When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must _____. multiply
Naddika [18.5K]

Answer:

Multiply by 10.

Step-by-step explanation:

When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must multiply by 10.

6 0
2 years ago
(3x²+3x+5)+(7x²-9x=8)=10x²-12x=13
Brilliant_brown [7]

The value of x is equal to -5/6

To solve this question, we have to add two polynomials together. The polynomials are;

  • 3x^2+3x+5
  • 7x^2-9x=8
<h3>Addition of Polynomials</h3>

This involves adding of two or more different polynomials together. The polynomials adding together are or must be of the same degree. i.e x^2 must add to another coefficient of x^2 and x^3 adds to another coefficient of x^3 and so on.

In this given question, let's add the polynomials together.

(3x^2+3x+5) + (7x^2-9x = 8\)\\3x^2 + 7x^2 + 3x-9x+5-8 =10x^2-6x-3

Now, let's equate this with the last polynomial given

10x^2-6x-3=10x^2-12x-13\\10x^2-10x^2-6x+12x-3+13\\0+12x+10\\12x=-10

Let's solve for x

12x=-10\\x=-\frac{10}{12}\\x = -\frac{5}{6}

The value of x is equal to -5/6

Learn more on addition of polynomials here;

brainly.com/question/4142886

8 0
2 years ago
Help??
julsineya [31]
You would use the equation 

F+V=E+2
3 0
3 years ago
Read 2 more answers
AHHHH HELP PLEASE, IT’S URGENT!!!!! I DON’T HAVE MUCH TIME :((( 7th Grade!!!!
salantis [7]

Answer:

A, P, M, S, W, Q

Step-by-step explanation:

4 0
2 years ago
Find h(g(n)) when h(n) = 2n + 5<br> and g(n) = n +4
Evgen [1.6K]

Answer:

2n+13

Step-by-step explanation:

h(g(n))\\h(n)=2n+5\\g(n)=n+4\\h(n+4)=2(n+4)+5\\=2n+8+5\\=2n+13

5 0
2 years ago
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