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3 years ago

Evaluate 3^2 + (5-2) X 4 - 6/3

Mathematics

2 answers:

muminat3 years ago

6 0

Answer:

The result is 19

Step-by-step explanation:

$3^{2} + (5-2)x4 - 6/3$

Step 1: Parenthesizing (5-2)=3

$3^{2} + 3x4 - 6/3$

Step 2: Exponentiation $3^{2}=9$

$9 + 3x4 - 6/3$

Step 3: Multiplication and division 3x4=12 and 6/3=2

$9 + 12 - 2$

Step 4: Addition and subtraction 9+12=21, and 21-2=19

21-2

The operations are ordered from highest to lowest in the order:

1. Parenthesizing,

2. Factorial,

3. Exponentiation,

4. Multiplication and division,

5. Addition and subtraction.

Hope this helps!

-Dominant- [34]3 years ago

5 0

Answer: 21

Step-by-step explanation:

To work this out you will need the help of BIDMAS:

1. Brackets

2. Indices

3. Division

4. Multiplication

5. Addition

6. Subtraction

You must work this out one after the other

First we must get rid of the brackets by multiplication since brackets are similiar to ×.

3^2 + (5-2) × 4 - 6/3

+ (5-2) =

+ × 5 + × -2 =

5-2

Since + is infront we multiply it by the whole bracket and remember:

Positive (+) × or ÷ Positive(+) = Positive (+)

Negative (-) × or ÷ Negative (-) = Positive (+)

Positive (+) × or ÷ Negative (-) = Negative (-)

Negative (-) × or ÷ Positive (+) = Negative (-)

Then indices are next:

3^2 + (5-2) × 4 - 6/3

3^2 =

3×3 =

Then division:

- 6/3 =

It is explained above, and also if there is the minus symbol on both the number then the answer will end up with a plus, but if there is a minus on only one number then the answer will have a minus.

But in this case since there is a minus in both the numbers, then the result would be 2.

So right now there is supposed to be this numbers:

9 + 2 × 4 + 2

So then we multiply;

+2 × 4

Finally we add everything up:

9 + 2 + 8 + 2 = 21

So in the end the answer is 21.

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mamaluj [8]

Answer:

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Step-by-step explanation:

The given table is presented as follows;

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3 years ago

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hram777 [196]

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Yakvenalex [24]

Answer:

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Step-by-step explanation:

First we just convert the angle from radians to degrees
$\frac{31\pi radians }{6}*\frac{180degrees}{\pi radians} =\frac{31*180}{6} degrees=930degrees$
Now that's too big, all this means is if we start rotating from the positive y-axis in a circle we will cross the starting point 2 times, 2 full circles;
$930degrees-360degrees=570degrees\\570degrees-360degrees=210degrees$
Now in which quadrant it 210 degrees?
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7 0

2 years ago

4x4=(blank)+(blank)=blank

kari74 [83]

Answer:

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4 0

3 years ago

The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?

egoroff_w [7]

Answer:

(1, 3)

Step-by-step explanation:

You are given the h coordinate of the vertex as 1, but in order to find the k coordinate, you have to complete the square on the parabola. The first few steps are as follows. Set the parabola equal to 0 so you can solve for the vertex. Separate the x terms from the constant by moving the constant to the other side of the equals sign. The coefficient HAS to be a +1 (ours is a -2 so we have to factor it out). Let's start there. The first 2 steps result in this polynomial:

$-2x^2+4x=-1$ . Now we factor out the -2:

$-2(x^2-2x)=-1$ . Now we complete the square. This process is to take half the linear term, square it, and add it to both sides. Our linear term is 2x. Half of 2 is 1, and 1 squared is 1. We add 1 into the set of parenthesis. But we actually added into the parenthesis is +1(-2). The -2 out front is a multiplier and we cannot ignore it. Adding in to both sides looks like this:

$-2(x^2-2x+1)=-1-2$ . Simplifying gives us this:

$-2(x^2-2x+1)=-3$

On the left we have created a perfect square binomial which reflects the h coordinate of the vertex. Stating this binomial and moving the -3 over by addition and setting the polynomial equal to y:

$-2(x-1)^2+3=y$

From this form,

$y=-a(x-h)^2+k$

you can determine the coordinates of the vertex to be (1, 3)

5 0

3 years ago

Read 2 more answers