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sergij07 [2.7K]
4 years ago
15

Punctele o, a, b, c sunt coliniare in aceasta ordine , iar segmentele oa, ab si bc au lungimile exprimate in cm , prin numere na

turale pare consecutive . Se stie ca m este mijlocul segmentului ac si om = 11 cm . Calculati : a) lungimea segmentului oc b) distanta dintre n , mijlocul segmentului ob , si punctul m
Mathematics
1 answer:
Doss [256]4 years ago
3 0

Answer:

???

Step-by-step explanation:

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Please help and answer both questions i will really appreciate it
vladimir1956 [14]

Answer for 1. X=12.5

6 0
4 years ago
{4.OA.A.3} There are 1,492 chairs in the auditorium. Ms. Jones wants to put them into 10 rows. If she splits the chairs evenly i
chubhunter [2.5K]

Answer:

2 chairs will be left over.

Step-by-step explanation:

Given that

There are a total of 1492 chairs.

which are to divided in 10 rows evenly.

To find:

Number of chairs left ?

Solution:

Let the number of chairs in each row = x

There are 10 rows so number of chairs in rows = 10x

Let the number of chairs left = y

Total number of chairs =10x + y  = 1492

The above equation is like:

Divisor \times Quotient + Remainder = Dividend

So, we have to find the remainder in this question where we are given Divisor and Dividend.

10 \times 149 + 2 = 1492

So, dividing 1492 with 10, we get remainder as 2.

Hence, 2 chairs will be left.

7 0
3 years ago
If the area of the trapezoid below is 98 square units,what is the value of x?<br>Plz help!
aleksandrvk [35]
Area of Trapezoid is = 1/2 x height x (base1 + base2)

Here, Area = 98, base1 = 8, base2 = 20 and height = unknown (x)

So, 1/2 x height x (8+20) = 98
==> 1/2 x height x 28 = 98
==> height x 14 = 98 
==> height = 98/14 
==> height = 7 units

So, the final answer is --> the value of x = 7 units



4 0
3 years ago
Read 2 more answers
If 15 workers can paint 18 houses in 24 days how many days will 40 workers take to paint 22 house
Paha777 [63]
I think the answer would be 4
8 0
3 years ago
Solve x 2 - 4x - 7 = 0 by completing the square. What are the solutions?
Bingel [31]

Answer:

x = 2±sqrt(11)

Step-by-step explanation:

x^2 -4x - 7 =0

Add 7 to each side

x^2 -4x -7+7 =0+7

x^2 -4x =7

To complete the square take the coefficient of the x term and  divide by 2 and then square it.  Add it to both sides

-4 /2 = -2 then square

(-2)^2 = 4

Add 4 to both sides

x^2 -4x+4 =7+4

x^2 -4x+4 = 11

Factor the left side into (x-b/2)^2

(x-2)^2 =11

Take the square root of each side

sqrt((x-2)^2) =±sqrt(11)

x-2 = ±sqrt(11)

Add to to each side

x-2+2 = 2±sqrt(11)

x = 2±sqrt(11)

3 0
4 years ago
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