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ValentinkaMS [17]
2 years ago
15

Hey please help meeeeeeeeeeeeeeeee please do atleast 2 questions

Mathematics
1 answer:
Paraphin [41]2 years ago
5 0

Answer:

2.  88,    3.  40,   4.  48,   5.  20

Step-by-step explanation:

first multiply&divide, then calculate from left to right

2.  5 · 4² + (2 · 3 + 2) = 5 · 16 + 6 + 2 = 88

3.  (4 + 3)² - 12 + 3 = 49 - 12 + 3 = 40

4.  64 ÷ 4 · 3 = 16 · 3 = 48

5.  3² - 4 + 5 · 3 = 9 - 4 + 15 = 20

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En un salon de 35 alumnos se tiene que hay 4 varones por cada 3 mujeres ?cuantas mujeres hay en el el salon de clases?
love history [14]

Answer:

15

Step-by-step explanation:

la proporción es 4: 3 y si sigues agregando 4: 3, eventualmente llegarás a 20:15 y 20 + 15 = 35

5 0
2 years ago
Solve for x , 2x-11 -9+ x
romanna [79]
2x - 11
-9 + x
equate the equations
2x - 11 = -9 + x
bring like terms to one side
2x - 11 = -9 + x
- x   +11   +11  - x
-11 and +11 cancels out
+x and -x cancels out
2x - x = 11 - 9
x = 2


3 0
3 years ago
To get to school each morning, Vanessa takes a horse 19.33 miles and a train 2.27 miles. In total the journey takes 26.48 minute
yarga [219]
The journey is 21.6 miles in total
5 0
3 years ago
Read 2 more answers
Make cos C the subject of the formula<br> C?= a? + b? - 2ab cos C
lara31 [8.8K]
<h3>Answer:  Choice E</h3>

Work Shown:

c^2 = a^2 + b^2 - 2ab\cos(C)\\\\c^2 + 2ab\cos(C) = a^2 + b^2\\\\2ab\cos(C) = a^2 + b^2 - c^2\\\\\boldsymbol{\cos(C) = \frac{a^2 + b^2 - c^2}{2ab}}\\\\

5 0
2 years ago
Si el lado de un cuadrado mide 10cm cuanto mide él área del círculo que se encuentra adentro de ese cuadrado
Alex17521 [72]

Answer:

El área del círculo que se encuentra en el cuadrado es de 78.5cm²

Step-by-step explanation:

Para resolver este ejercicio tenemos que pensar que un cuadrado tiene sus 4 lados iguales, por lo que todos sus lados medirán 10cm.

Ahora nos fijamos que necesitamos saber para calcular el área de un circulo

a = área

r = radio

π = 3.14

a = π * r²

como podemos ver no sabemos el valor del radio

como el circulo toca con los 4 lados del cuadrado sabemos que su radio sera la distancia del centro del cuadrado a cualquiera de los lados.

Entonces tenemos que dividir un lado por 2

10cm/2 = 5cm

El radio del circulo sera 5cm

Ahora que tenemos todos los datos podemos calcular el valor del área

a = 3.14 * (5cm)²

a = 3.14 * 25cm²

a = 78.5cm²

El área del círculo que se encuentra en el cuadrado es de 78.5cm²

8 0
3 years ago
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