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IRISSAK [1]
3 years ago
15

(05.01)

Mathematics
2 answers:
Irina18 [472]3 years ago
6 0
I hope this helps you

Anna71 [15]3 years ago
4 0
Simplify completely quantity 3 x squared plus 21 x minus 54 all over x squared plus 3 x minus 54. 

quantity 3 x squared plus 21 x
(3x^2 + 21x - 54)

x squared plus 3 x minus 54. 
(x^2 + 3x -54)

(3x^2 + 21x - 54)/(x^2 + 3x -54)

(3(x+9)(x-2)) / ((x+9)(x-6)

3(x-2) / (x-6)


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In the right triangle shown, the third side can be represented by the expression
Westkost [7]

The third side can be represented by D) x = \sqrt{z^{2} } -y^{2} .

Step-by-step explanation:

Step 1:

According to the Pythagorean theorem, the square of the hypotenuse will be equal to the sum of the squares of the other two sides.

In the given triangle, the hypotenuse is the side that is represented by z. Another side on the triangle is represented by the value y.

Step 2:

Assume the other side of the triangle measures x units.

So according to the Pythagorean theorem,

z^{2}  = x^{2} +y^{2} , x^{2} = z^{2} - y^{2} .

x = \sqrt{z^{2} } -y^{2} which is option D.

6 0
3 years ago
A crate filled with bottles weight 4kg.The bottles weight 2.3kg what is the weight of the empty crate
Anni [7]
The calculation: 4kg-2.3kg = 1.7 kg
The crate weighs 1.7 kg
7 0
3 years ago
AC has endpoints<br> A(3,7) and C(6,11).<br> Find AB if B is the<br> midpoint of AC.
faltersainse [42]

Answer:

d=2.5

Step-by-step explanation:

first find the coordinate of B(mid point of AC):A(3,7) C(6,11)

d=√(6-3)²+(11-7)²

d=√3²+4²

d=√9+16=√25=5

since B is the mid point : d/2=5/2=2.5

<h2>Another way :</h2>

B(x1+x2/2 , y1+y2/2)   , x1=3 , x2=6, y1=7, y2=11

B(9/2,18/2)

B(9/2,9)

Find AB : the length or distance between 2 points:

d=√(x2-x1)²+(y2-y1)²

d=√(3-9/2)²+(7-9)²

d=√(-3/2)²+(-2)²

d=√1.5²+4

d=√6.25

d=2.5

8 0
3 years ago
You have $7.45. You buy 8 items that cost $0.83 each. How much money do you have left
Agata [3.3K]

Answer:

$0.81

Step-by-step explanation:

left

7.45-8(0.83)=7.45-6.64=0.81

I hope I have helped you

6 0
2 years ago
PLSSS HELP ME thanks :))
krok68 [10]

that's all , all the best

4 0
3 years ago
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