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Valentin [98]
3 years ago
14

I am thinking of a number (s).

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
(?) X 4 - 18 = 94
28 X 4 - 18 = 94
attashe74 [19]3 years ago
3 0

Step-by-step explanation:

?×4-18=94

(28)×4-18=94 I'm just trying

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Halle la ecuación del eje x y la ecuación del eje y, usando dos puntos que se encuentren sobre los mismos.
lisov135 [29]

Una linea recta ( cualquier eje coordenado es una línea recta) queda definida si se conocen dos puntos que están sobre ella.

Solución:

Ecuación del eje x      y = 0

Ecuación del eje y      x = 0

Para darle respuesta a la pregunta podemos seguir el siguiente procedimiento:

  • Escogemos dos puntos arbitrarios sobre el eje x, por ejemplo

P ( 2 ; 0 )  y Q ( 5 ; 0 )         ( todos los puntos sobre el eje x tienen coordenada y = 0.

Según la cual  m = (y₂ - y₁)/ ( x₂ - x₁ )    m = 0

  • Usamos la ecuación pendiente-Intercepto

y = m×x + b         donde m es la pendiente y b el intercepto con el eje y

y entonces tenemos:

  • m = 0    b ( 0 ; 0 )
  • Por sustitución en la ecuación pendiente-intercepto

y = 0

Procediendo de forma similar obtendremos la ecuación del eje y

P´( 0 ; 4 )     Q´( 0 : 8 ) entonces

y = m×x + b

En este caso, la pendiente no es definida ( tang 90° ) y b es de nuevo el punto b ( 0 ; 0).

A partir de  que todos y cada uno de los puntos sobre el eje y son  de valor 0 para x, concluímos que  ecuación del eje y es

x = 0

Enlaces de interés:brainly.com/question/21135669?

8 0
2 years ago
A point on the top of the Leaning Tower of Pisa is shifted about 13.5 ft horizontally compared to the tower's base. To the neare
madam [21]

Answer:

4.15^0.

Step-by-step explanation:

Given,

Leaning Tower of Pisa is shifted, P = 13.5 ft

Height of Leaning Tower of Pisa, B = 186 ft

Now, degree of tilt of the tower from vertical

\tan \theta = \dfrac{P}{B}

\tan \theta = \dfrac{13.5}{186}

\tan \theta = 0.0725

\theta = 4.15^\circ

Hence, angle of tilt is equal to 4.15^0.

4 0
3 years ago
Select all the relationships that demonstrate a positive association between variables.
Stells [14]

Answer:

O.Length of time you have walked and distance you have traveled.

O.Pounds of cherries you buy and amount of money you spend on cherries.

O.Number of people in a grocery check-out line and how long you have to wait to check out

Step-by-step explanation:

Please tell me this is correct and if it isn't I'm sorry if it is please mark Brainliest!

6 0
3 years ago
Please HELP! I DON'T KNOW HOW CAN I SOLVE THIS ​
Wewaii [24]

Answer:

<h2>41. x = √2</h2><h2>42. x = √5</h2><h2>43. x = 4</h2><h2>44. x = 4√3</h2>

Step-by-step explanation:

The Pythagorean Theorem:

leg^2+leg^2=hypotenuse^2\to a^2+b^2=c^2

41.\\\\a=1,\ b=1,\ c=x\\\\x^2=1^2+1^2\\\\x^2=1+1\\\\x^2=2\to x=\sqrt2

42.\\a=1, b=2,\ c=x\\\\x^2=1^2+2^2\\\\x^2=1+4\\\\x^2=5\to x=\sqrt5

43.\\a=3,\ b=x,\ c=5\\\\3^2+x^2=5^2\\\\9+x^2=25\qquad\text{subtract 9 from both sides}\\\\x^2=16\to x=\sqrt{16}\to x=4

44.\\\\a=4,\ b=x,\ c=8\\\\4^2+x^2=8^2\\\\16+x^2=64\qquad\text{subtract 16 from both sides}\\\\x^2=48\to x=\sqrt{48}\\\\x=\sqrt{16\cdot3}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\x=\sqrt{16}\cdot\sqrt3\\\\x=4\sqrt3

7 0
3 years ago
Read 2 more answers
Help!!! I need help!!
Ludmilka [50]
You know that the two angles on the longer sides must add to 180 degrees.
3x+5+70=180
3x+75=180
3x=105
X=35 degrees

So you've got x, now plug it into the other angle that you can determine.
2x
2(35)=70

Now you can use the previous strategy for the last angle
70+x+3y=180
70+35+3y=180
3y=75
Y=25 degrees

There you go, you've got x=35 and y=25
4 0
3 years ago
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