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Svetradugi [14.3K]
4 years ago
14

6⋅[(32−8)÷4+2] What is the answer to this expession?

Mathematics
1 answer:
Nimfa-mama [501]4 years ago
4 0

Answer:

48

Step-by-step explanation:

=6*[24/4+2]

=6*[6+2]

=6*8

=48

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Question : A square game board is divided into smaller squares, each with sides one-ninth the length of the sides of the board.
bagirrra123 [75]

Answer:

Therefore the game board is divided into 81 smaller squares.

Step-by-step explanation:

Given that, there is a square game.

Consider x be length of one side the square.

The volume of the square is = side ×side

                                               =x² square units

Since the length of side of smaller square is one-ninth of the game board.

Then one side length of the smaller square is \frac19x units.

The area of a smaller square is =(\frac19x)\times (\frac19x)

                                                    =\frac{1}{81}x^2

Let a number of square is formed from the game board.

a ×The area of one smaller square= The area of game board.

According to the problem,

a\times (\frac{1}{81}x^2)=x^2

\Rightarrow a =\frac{x^2\times 81}{x^2}

\Rightarrow a= 81

Therefore the game board is divided into 81 smaller squares.

4 0
3 years ago
Given sinx=3/5 and x is in quadrant 2, what is the value of tan(x/2)
xxMikexx [17]
X is in the second quadrant means that x/2 is in the first quadrant.


Consider the right triangle drawn in the figure. Let tan(x/2)=a.

Then, let the length of the opposite side to x/2 be a, the adjacent side be 1 and the hypotenuse be square root of a squared +1, as shown in the figure.

sin(x/2)=|opp side|/ |hypotenuse| =  \frac{a}{ \sqrt{ a^{2}+1 } }

cos (x/2) = |adj side|/ |hypotenuse| =  \frac{1}{ \sqrt{ a^{2}+1 } }


from the famous identity: sin(2a)=2sin(a)cos(a), we have:

2sin(x/2)cos (x/2)=sin(x)

thus

2* \frac{a}{ \sqrt{ a^{2}+1 } }*\frac{1}{ \sqrt{ a^{2}+1 } }= \frac{3}{5}

2* \frac{a}{  a^{2}+1 }= \frac{3}{5}

10a=3 a^{2} +3

3 a^{2}-10a +3=0

(3a-1)(a-3)=0

thus a=1/3 or a=3


thus tan(x/2)=1/3 or tan(x/2)=3


Answer: {1/3, 3}

3 0
3 years ago
Read 2 more answers
Please help!! I don't get this.
Lynna [10]
The answer to question 5 is -3.
The answer to question 9 is -5.<span>
</span>The answer to question 7 is 28x^3y^4.
3 0
3 years ago
Elliot is riding in 100 mile bike race to raise money for charity so far he has completed 7/10 of the race how far has Elliot bi
Dmitry_Shevchenko [17]

<u><em>Answer:</em></u>

Elliot biked 70 miles

<u><em>Explanation:</em></u>

We are given that the total distance of the race is 100 miles

We are also given that Elliot covered \frac{7}{10} of this distance

To get the number of miles covered by Elliot, we will simply multiply the ratio of the covered distance (\frac{7}{10}) by thetotal distance of the race (100 miles)

<u>This is done as follows:</u>

Distance covered = \frac{7}{10} * 100 = 70 miles

<u>Therefore,</u> Elliot biked for 70 miles

Hope this helps :)

4 0
3 years ago
Please help me guys ill mark you as a brilliant
Tomtit [17]

Answer:

so the answer is ,,5". hope this helped! Have a nice day.

Step-by-step explanation:

45:9=5

4 0
3 years ago
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