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Mashutka [201]
3 years ago
10

PLease help ill give brainliest

Mathematics
1 answer:
Delvig [45]3 years ago
8 0
D because you can test the experiment on the desk and on the floor and see which slides easier. it is a hypothesis until you prove it it's true
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Contesta si las siguientes proposiciones son falsas F o verdaderas V, colocando la letra que corresponda en el paréntesis. 1. La
AlexFokin [52]

Los valores de las proposiciones son:

  • 1) Falso
  • 2) Falso
  • 3) Verdadero
  • 4) Falso
  • 5) Verdadero
  • 6) Verdadero
  • 7) Falso
  • 8) Falso
  • 9) Falso
  • 10) Falso.

<h3>Analizemos las proposiciones.</h3>

Analizaremos cada proposicion para ver si esta falsa o verdadera.

1) "La recta está formada por un número finito de puntos."

Esto es falso, una recta esta formada por infinitos puntos. Si usaramos un numero finito de puntos, entonces tendriamos lugares donde la recta se corta.

2) " La magnitud de un ángulo depende de la longitud de sus lados."

Falso, el largo de los lados no tiene ninguna relación con la magnitud del angulo.

3) "Un rayo y una semirrecta son el mismo objeto geométrico."

Verdadero, ambos hacen referencia a una linea que tiene comienzo pero no tiene final.

4) "Un segmento tiene mayor longitud que un rayo"

Falso, un segmento tiene longitud finita y un rayo tiene longitud infinita.

5) "Por dos puntos solo se puede trazar una recta."

Verdadero, para cualquier par de puntos hay una sola recta que los conecta.

6) " La recta y el plano están formados por puntos."

Verdadero

7) "Por tres puntos cualesquiera, solo puede trazarse un plano."

Falso, segun cual par de puntos utilizemos para definir la recta, obtendremos un plano diferente.

8) "Por cuatro puntos cualesquiera solo puede trazarse un plano."

Falso, igual que antes.

9) "Si dos rectas se cruzan, forman 2 ángulos. "

Falso, si haces el dibujo, podras ver que se forman 4 angulos.

10) "La intersección de dos planos es un punto. ( )"

Falso, la intersección de dos planos es una linea.

Sí quieres aprender mas sobre geometría, puedes leer:

brainly.com/question/24784999

7 0
2 years ago
$1100 at 8%, for 15 years, compounded annually.
ololo11 [35]

Answer:

$3489.39

Step-by-step explanation:

This question is an example of compound interest. To work this out you would first have to convert the percentage of 8% into a decimal. To do this you would divide the percentage of 8 by 100, which gives you 0.08. You would divide the percentage by 100 as percentages of a whole amount are out of 100.

The next step is to add 1 to 0.08, which gives you 1.08. This is because the question is asking to increase the amount by 8% and that as 1 is the whole amount, this means that 1.08 is 8% more than the whole amount.

Then to work out how much there will be after 15 years you would multiply the amount of 1100 by 1.08 to the power of 15, which gives you 3489.39. This is because to work out 8% would only work it out for one year however for compound interest you would need to work out 8% extra and then the next year work out the 8% of the new total.

1) Divide 8 by 100.

8/100=0.08

2) Add 1 to 0.08.

1+0.08=1.08

3) Multiply 1100 by 1.08 to the power of 15.

1100*1.08^{15} =3489.39

3 0
3 years ago
What are the solutions of the equation x4 + 95x2 – 500 = 0? Use factoring to solve. x = plus-or-minus StartRoot 5 EndRoot and x
Oduvanchick [21]

Answer:

<em>* x ⇒ plus-or-minus StartRoot 5 EndRoot and ±10i *</em>

Step-by-step explanation:

Through factorization;

x^4 + 95x^2 – 500 = 0, ⇒ <em>u^2 ⇒ x^2</em>,

u^2 + 95u - 500 = 0, ⇒<em> factors of -500; -25, 20, -50 * 10, -2 * 250, -5 * 100...</em>

( u )^2 + ( - 5 + 100 ) + ( - 5 * 100 ) = 0,

( u - 5 )( u + 100 ) = 0,

<em>u = 5, and y = - 100</em>

Substitute u back into format x^2;

u = x^2, 5 = x^2, | x | = √5 ⇒ <em>x = - / + √5,</em>

u = x^2, - 100 = x^2, | x | = √- 100 ⇒ <em>x = - / + 10i</em>

<em>* Answer: x ⇒ plus-or-minus StartRoot 5 EndRoot and ±10i *</em>

7 0
3 years ago
The height of a triangle is 6 units less than twice the base length if the height is 18 units, what is the base length
Dimas [21]

Answer:

12 units

Step-by-step explanation:

h=2x-6

18=2x-6

24=2x

12=x

5 0
3 years ago
If a divides c and that b divides c. Prove ab divides c
Lera25 [3.4K]

If a divides c,

then 'a' is a factor of 'c'.

Also,

If 'b' divides c,

then 'b' is also a factor of 'c'

therefore,

'a' and 'b' are factors of 'c'

Hence, a and b divides 'c'

so, c = a*b

and ab will also divide c.

Hence, proved.

7 0
3 years ago
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