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neonofarm [45]
3 years ago
5

Tập hợp các số nguyên bao gồm nhũng số nào ?

Mathematics
1 answer:
Trava [24]3 years ago
4 0

Step-by-step explanation:

Qual resultado Mauro incomtrou

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How do you solve this system equation using elimination
laiz [17]
3x +y = 23 this is the same as y=23-3x
3x - 2y = 8 this is the same as 3x/2-8/2=y, which gives you; y=1,5x-4
so;y=23-3xy=1,5x-4
y=y
23-3x=1,5x-4
23+4=1,5x+3x
27=4,5x
27/4,5=x
x=6
the y is:
3*6+y=23
18+y=23
y=23-18
<span>y=5</span>
3 0
4 years ago
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plssssssssssssssssssssss help Six friends, four boys and two girls, went to a movie theater. They wanted to sit in a way so no g
Airida [17]

Answer:

672 ways

Step-by-step explanation:

The total number of ways the friends were supposed to sit without restrictions would have been = 6!

= 720 possible ways.

If the girs should sit on the first or last sit

The possible arrangement= 2!4!

= 2*24

= 48

But now the two girls should be arranged in such a way that the don't sit on either the first or the last chair.

So the possible way now is= way without restriction - way if the girls are to sit at either first or last sit

= 720-48

= 672

7 0
4 years ago
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PLEASE HELP!!!! WILL GIVE 15 POINTS
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Answer:

r=11x

Step-by-step explanation:

6 0
3 years ago
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Select the correct answer.A town park has two paths leading to the playground. One path is 2 miles from the road and the other p
damaskus [11]

Given:

There are given that the two paths and one path are 2 miles from the road.

Explanation:

Suppose the distance from the playground to the road is x.

To find the value x, we need to use the cos function;

So,

From the cos function in the given right angle triangle:

cos50^{\circ}=\frac{x}{2}

Then,

\begin{gathered} cos50^{\operatorname{\circ}}=\frac{x}{2} \\ 0.64=\frac{x}{2} \end{gathered}

Then,

\begin{gathered} 0.64=\frac{x}{2} \\ x=0.64\times2 \\ x=1.28 \\ x=1.3mi \end{gathered}

Final answer:

Hence, the correct option C.

4 0
1 year ago
The perimeter of a square is 109.8 square inches. what is the length of one square? A 2.74 in B 10.98 in C 25 in D 27.45 in
Kitty [74]

Answer:

The perimeter of a square is 109.8 square inches. what is the length of one square? A 2.74 in B 10.98 in C 25 in D 27.45 in

Step-by-step explanation:

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