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zheka24 [161]
4 years ago
7

-What is the value of the expression:7-1.0+3÷3

Mathematics
2 answers:
bixtya [17]4 years ago
5 0

Answer:

7

Step-by-step explanation:

This problem deals with order of operations. If you solve the problem from left to right, you will get an incorrect answer. Instead recall PEMDAS.

Parentheses first  

Exponents

Multiplication and Division (left-to-right)

Addition and Subtraction (left-to-right)

We start with the division, as there are no parentheses or exponents.  3÷3=1.

Now we can replace the 3÷3 with a 1 in the expression.

7-1.0+1

Since we only have addition and subtraction left, we now proceed from left to right.

7-1.0=6, and 6+1=7.

or

7-1.0+1=7.

Therefore, the answer is 7.

liberstina [14]4 years ago
3 0

Answer:

7

Step-by-step explanation:

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5. Consider the diagram below. Solve for x.
mrs_skeptik [129]

Answer:

41 degrees

Step-by-step explanation:

The three angles need to add up to 180 degrees!

4 0
3 years ago
What equation will give the perimeter of the figure? HELP HELP HELP
nata0808 [166]

Answer:

(2l + 2w) + (a + b + c)

Step-by-step explanation:

The formula for the perimeter of a rectangle is

P = 2l + 2w

so if you substitute, it becomes

P = 2(12) + 2(2)

= 24 + 4

= 28

For the perimeter of a triangle the correct formula would be

P = a + b + c

The missing side in the triangle is 3 because 15 - 12 is 3.

If you substitute, it becomes

P = 2 + 3 + 6

P = 11

If we add both perimeters together we get the full perimeter of the figure which is

28 + 11 = 39

I am not sure if you wanted the answer as well but just in case :)

4 0
3 years ago
Can someone help me with this please,thanks also giving brainlest.
Shalnov [3]
You would multiply 100 by 6 to get the 6 away from m. this leaves m on one side of the equal sign and 6•100 on the other. multiply that out, which is 600. so m=600.
7 0
3 years ago
Mr. Grant spent $8.40 to place an ad in the newspaper. This price included a one-time fee of $6.00 plus $0.08 per word. Which me
kondaur [170]

Answer:

He used 30 words

Step-by-step explanation:

(8.40 - 6.00) divided by 0.08 = the number of words

7 0
3 years ago
Write the simplest polynomial function for each set of zeros
dexar [7]

9514 1404 393

Answer:

  p(x) = x^4 -5x^3 +20x -16

Step-by-step explanation:

If 'a' is a zero of the polynomial, then (x -a) will be a factor. For the given zeros, the simplest polynomial will be the product of the corresponding factors:

  p(x) = (x -2)(x +2)(x -4)(x -1) . . . . . . note that x -(-2) = x +2 (factored form)

__

Multiplying these out gives the result in standard form.

The product of the <em>first two factors</em> is a "special product" recognizable as the difference of two squares.

  (x -2)(x +2) = x^2 -2^2 = x^2 -4

The product of the <em>last two factors</em> can be found in the usual way. The distributive property applies.

  (x -4)(x -1) = x(x -1) -4(x -1)

  = x^2 -x -4x +4 = x^2 -5x +4

Then the full polynomial is the product of these partial products:

  p(x) = (x^2 -4)(x^2 -5x +4)

  = x^2(x^2 -5x +4) -4(x^2 -5x +4)

  = x^4 -5x^3 +4x^2 -4x^2 +20x -16

  p(x) = x^4 -5x^3 +20x -16 . . . . . . . . standard form

5 0
3 years ago
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