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rodikova [14]
3 years ago
5

THIS IS FOR STATISTICS (PAIRED T-TEST)

Mathematics
1 answer:
AleksandrR [38]3 years ago
6 0

Answer:

Oh Ana significa familia

Step-by-step explanation:

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You need to solve for X
zhenek [66]

Look at the picture.

We have the proportion:

\dfrac{x}{2}=\dfrac{305}{122}\ \ \ \ |\cdot2\\\\x=\dfrac{305}{61}\\\\x=5\ ft

Answer: Rayan is 5 ft tall.

5 0
4 years ago
Segments in Circles<br><br><br> TW=3, CW=x, TU=x+7, VW=6. Find the value of x.
Kryger [21]

Answer:

x=2

Step-by-step explanation:

The diagram is attached below

  • TW=3
  • CW=x
  • TU=x+7
  • VW=6

TU=TW+WU

x+7=3+WU

WU=x+7-3

WU=x+4

To determine the value of x, we apply the theorem of intersecting chords.

TW X WU = CW X WV

x(x+4)=6 \times x\\x^2+4x=6x\\x^2=6x-4x\\x^2=2x\\$Divide both sides by x\\x=2

4 0
3 years ago
LA BASE DE UN RECTANGULO ES 8 M MAYOR QUE LA ALTURA, EL AREA MIDE 65 METROS CUADRADOS ¿CUANTO MIDEN LA BASE Y ALTURA?
sp2606 [1]

Answer:

23 m and 15 m

Step-by-step explanation:

THE BASE OF A RECTANGLE IS 8 M GREATER THAN THE HEIGHT, THE AREA MEASURES 65 SQUARE METERS HOW MUCH DO THE BASE AND HEIGHT MEASURE?

Let the height of the rectangle is h.

Base = 8+h

Area of the rectangle, A = 65 m²

We need to find the base and height of the rectangle. The area of a rectangle is given by :

A = bh

So,

65=(8+h)\times h\\\\65=8h+h^2\\\\h^2+8h-65=0\\\\(h-5)(h+13)=0\\\\h=5\ m\ \text{and}\ x=-13\ m

Neglecting negative value, h = 15 m

Base  = 8+15 = 23 m

So, the base and height of the rectangle is 23 m and 15 m respectively.

4 0
3 years ago
2) Robert is trying to raise money for the children. Last year Robert raised $85. While this year he raised $125. By what percen
bekas [8.4K]

Answer:

5×^4

Step-by-step explanation:

I think that is the answer.

5 0
3 years ago
Will someone please explain step by step how i'm suppose to solve this cuz I don't know what i'm doing. Thanks in advance.
kumpel [21]
I believe it's (-1,-3)
I hope this helps
6 0
4 years ago
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