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soldier1979 [14.2K]
3 years ago
12

Explain why the hypotenuses of the triangles below have the same slope.

Mathematics
2 answers:
schepotkina [342]3 years ago
6 0
They have the same slope because they are similar. The smaller one is 1/2 the size of the bigger one and they have a ratio of 1:2 which makes them similar. 
Kitty [74]3 years ago
5 0
The hypotenuses are the same because they fall on the same line.
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Femi’s last 5 bowling scores were 68 75 90 and 80 what was femis mean score
posledela
It says last 5 bowling scores but there’s only four numbers listed just fyi

To find the mean, add all the numbers up and then divide by how many numbers you just added.

So, let’s add 68, 75, 90, 80

That equals 313. Now let’s divide by four, since we added four numbers together.

313 divided by four equals 78.25

So out of those four scores you gave me, her average was score 78.25

Hope this helped :)
7 0
3 years ago
Dado dos ángulos complementarios, uno mide (2x + 10) y el otro (x + 20),
rusak2 [61]

Answer:

El valor de <em>x</em> es igual a 20 o <em>x</em> = 20.

Step-by-step explanation:

Lo primero que se debe saber es que <em>dos ángulos complementarios suman un ángulo recto o 90º</em>.

Supongamos que el valor de un ángulo \\ \alpha y un ángulo \\ \beta valen:

\\ \alpha = 2x + 10 [1]

\\ \beta = x + 20 [2]

Como la suma de  \\ \alpha + \beta = 90 [3]

Entonces

\\ \alpha + \beta = (2x + 10) + (x + 20) = 90

Sumamos los factores comunes entre si:

\\ (2x + x) + (10 + 20) = 90

Para la primera expresión debemos recordar que se suman sólo los coeficientes. Así:

\\ (2 + 1)x + (10 + 20) = 90

\\ 3x + 30 = 90

Para despejar la incógnita <em>x</em>, debemos tener en cuenta que <em>una igualdad no se altera si se suma, se resta, se multiplica o divide un mismo valor a cada lado de ella</em>. Por esta razón, para despejar 3x, lo primero que podemos hacer es sumar -30 a cada lado de la expresión (lo que es igual a restar 30 a cada lado de la misma). Así tenemos:

\\ 3x + 30 - 30 = 90 - 30

\\ 3x + 0 = 90 - 30

\\ 3x = 60

Ahora dividimos cada miembro de la igualdad entre 3 (o multiplicamos cada lado de la igualdad por \\ \frac{1}{3} ):

\\ \frac{3}{3}x = \frac{60}{3}

Como sabemos que:

\\ \frac{3}{3} = 1

Entonces:

\\ 1*x = \frac{60}{3}

\\ x = \frac{60}{3}

\\ x = 20

De esta manera, el valor de <em>x</em> es igual a 20 o x = 20.

Lo anterior lo podemos comprobar considerando las ecuaciones [1], [2] y [3]. Así tenemos que:

\\ \alpha = 2x + 10 [1]

Sustituimos x por el valor de 20:

\\ \alpha = 2*20 + 10 = 40 + 10 = 50

\\ \beta = x + 20 [2]

Hacemos lo mismo para [2]:

\\ \beta = 20 + 20

\\ \beta = 40

De esta manera:

\\ \alpha + \beta = 90 [3]

\\ 50 + 40 = 90

4 0
3 years ago
0.76775 can it be non-terminating decimal
Irina18 [472]
No it can not if you don't understand why ask why
3 0
3 years ago
I need help with this problem can somebody help me
Hunter-Best [27]

Answer:

x=15 y=22.5

Step-by-step explanation:

6x-5=85

6x=90

x=15

4y=90

y=22.5

4y makes a right angle so it is 90 degrees

5 0
3 years ago
How do you find the Constant of variation
Harman [31]
If y
y
varies directly as x
x
and y=15
y
=
15
when x=24
x
=
24
, find x
x
when y=25
y
=
25
.

Find the constant of variation.

k=yx=1524=58y=58x k=
y
x
=
15
24
=
5
8
y=
5
8
x
To find x
x
, substitute 25
25
for y
y
.

25=58xx=40
6 0
4 years ago
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