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postnew [5]
3 years ago
6

Type the correct answer in the box. Use numerals instead of words. Use the order of operations to evaluate this expression: 7 +

(5 – 9)2 + 3(16 ÷ 8).
Mathematics
2 answers:
faust18 [17]3 years ago
6 0

Answer:

5

Step-by-step explanation:

We use PEMDAS to evaluate this expression. We start with the parentheses (P). This gives us:

7+(-4)2 + 3(2)

We then do multiplication, as there are no exponents.

7+ (-8) + 6

-1 plus six is 5.

The answer is 5

kherson [118]3 years ago
5 0

Answer:

5

Step-by-step explanation:

We use PEMDAS to evaluate this expression. We start with the parentheses (P). This gives us:

7+(-4)2 + 3(2)

We then do multiplication, as there are no exponents.

7+ (-8) + 6

-1 plus six is 5.

The answer is 5

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(X^4-81)/x^3+3x^2+9x+27
Iteru [2.4K]

Answer:

x-3

Step-by-step explanation:

(x^2-9)(x^2-9)/x^2*(x+3)+9(x+3)

(x+3)*(x^2+9)/(x+3)*(x^2+9) cross multiply

(x^2+9)*(x+3)/(x^2+9) cross multiply

x+3 final anser

6 0
3 years ago
Someone please help fast
Bad White [126]

Answer:

16/3 because you put a 1 under 8 since it's not a fraction hen multiple across

Step-by-step explanation:

pls give brainly

4 0
2 years ago
Read 2 more answers
One of your responsibilities as a line cook is to
vfiekz [6]

Answer: 72

Step-by-step explanation:

If all the sandwiches will have a slice of cheese, you just need to add up all of the sandwiches order (28 + 14 + 30 = 72)

5 0
2 years ago
The ratio of the geometric mean and arithmetic mean of two numbers is 3:5, find the ratio of the smaller number to the larger nu
IgorC [24]

Answer:

\frac{1}{9}

Step-by-step explanation:

Let the numbers be x,y, where x>y

The geometric mean is

\sqrt{xy}

The Arithmetic mean is

\frac{x + y}{2}

The ratio of the geometric mean and arithmetic mean of two numbers is 3:5.

\frac{ \sqrt{xy} }{ \frac{x + y}{2} }  =  \frac{3}{5}

We can write the equation;

\sqrt{xy}  = 3

or

xy = 9 -  -  - (2)

l

and

\frac{x + y}{2}  = 5

or

x + y = 10 -  -  - (2)

Make y the subject in equation 2

y = 10 - x -  -  - (3)

Put equation 3 in 1

x(10 - x) = 9

10x -  {x}^{2}  = 9

{x}^{2}  - 10x + 9 = 0

(x - 9)(x - 1) = 0

x =1  \: or \: 9

When x=1, y=10-1=9

When x=9, y=10-9=1

Therefore x=9, and y=1

The ratio of the smaller number to the larger number is

\frac{1}{9}

3 0
2 years ago
What’s the answer? (Due today by 7pm) Thanks!!
AnnZ [28]

Answer:

D.

90 x 1/2 = 45 km

The rate is 90 miles per hour and 30/60=1/2 so we multiply 1/2

Hope this helps

Step-by-step explanation:

5 0
3 years ago
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