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Sedaia [141]
3 years ago
8

50 POINTS + BRAINLIEST for correct answer

Mathematics
1 answer:
vlabodo [156]3 years ago
6 0

Answer:

?

Step-by-step explanation:

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HELP ASAP!! No links or photos please. Don't answer if you don't know it
yuradex [85]

Answer:

b no

Step-by-step explanation:

c^2 =\sqrt{a {}^{2}  +b {}^{2}} 9 + 25 \: is \: not  =81

7 0
3 years ago
A quadrilateral has vertices A, B, C, and D. A line of reflection is drawn so that A is 6 units away from the line, B is 4 units
Kryger [21]

Answer:

The correct option is O B'

Step-by-step explanation:

We have a quadrilateral with vertices A, B, C and D. A line of reflection is drawn so that A is 6 units away from the line, B is 4 units away from the line, C is 7 units away from the line and D is 9 units away from the line.

Now we perform the reflection and we obtain a new quadrilateral A'B'C'D'.

In order to apply the reflection to the original quadrilateral ABCD, we perform the reflection to all of its points, particularly to its vertices.

Wherever we have a point X and a line of reflection L and we perform the reflection, the new point X' will keep its original distance from the line of reflection (this is an important concept in order to understand the exercise).

I will attach a drawing with an example.

Finally, we only have to look at the vertices and its original distances to answer the question.

The vertice that is closest to the line of reflection is B (the distance is 4 units). We answer O B'

8 0
3 years ago
PLEASE HELP!!!:)). The area of ​​the trampezoid is 100dm and the bases are 2.1m and 1.9m. Calculate the height of the trampezoid
mixas84 [53]

Answer:

Well, the only thing you should do is to use the formula.

if the bases are: a, b

and the height is=h

Then, this is your formula, S=½(a+b)×h

Step-by-step explanation:

Aight,

100dm=10m

S=10m

now, the formula

10=½(2.1+1.9)×h===> 20=4h==> h=5m

5 0
3 years ago
Find the equation of the line I in the following picture. The shapes under the lines are squares
julia-pushkina [17]
If you look carefully at the graph, you may see that the slope of the line is
          3-4           -1
---------------- = ------ = m
         7-4             3

thus, you have the slope of the line and two points on the line.  Suppose we
choose the point (4,4) and subst. the known slope and the coordinates of this point into the point-slope formula for the eqn of a str line:

y-y1 = m (x-x1)

y-4 = (-1/3)(x-4)

This is the desired equation.  You could, if you wished, change this into slope-intercept form.
5 0
3 years ago
What is the explicit formula for the sequence below?<br><br> 4, -12, 36, -108 ...
liubo4ka [24]

Answer:x ×-3

Step-by-step 4×-3= -12

-12 × -3= 36

and so on

6 0
3 years ago
Read 2 more answers
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