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Evgesh-ka [11]
4 years ago
13

A triangle has sides of lengths 12, 14, and 19. Is it a right triangle? Explain.

Mathematics
1 answer:
Molodets [167]4 years ago
7 0
A^2 + b^2 = c^2 
<span>C should equal to the longer side, which would be 19. </span>
<span>Plug in other two numbers for A and B. </span>
<span>12^2 + 14^2 = 19^2 </span>
<span>Now see if it's correct. If it is, then it's a right triangle, if it's not then it isn't a right triangle. </span>
<span>144 + 196 = 361 </span>
<span>340 = 361 </span>
<span>It's not a right triangle.</span>
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A rectangle is 3 feet longer than it is wide . if the perimeter is 30 feet , find the area in square feet .
noname [10]

Answer:

Hey

Step-by-step explanation:

I beleve you answer is 10 because 3 time 10 equals 30 and the question sais "3 times longer"

5 0
4 years ago
Find the slope of the line that passes through (5,3) and (4,2).
GREYUIT [131]

Answer:

The slope is 1

Step-by-step explanation:

Slope = (y₂-y₁)/(x₂-x₁) = (2-3)/(4-5) = (-1)/(-1) = 1

Therefore, the slope of the line that passes through (5,3) and (4,2) is 1

8 0
3 years ago
Se vendieron un total de 430 boletos para la obra de teatro escolar. Los boletos eran o de adulto o de estudiante. Se vendieron
BartSMP [9]

Resolviendo un sistema de ecuaciones, veremos que se vendieron 250 boletos de adulto.

<h3>¿Cuántos boletos de adulto fueron vendidos?</h3>

Definamos las variables:

  • x = boletos de adulto vendidos.
  • y = boletos de estudiantes vendidos.

Se vendieron un total de 430 boletos, entonces:

x + y = 430

Y se vendieron 70 boletos de estudiante menos que boletos de adulto:

y = x - 70

Tenemos el sistema de ecuaciones:

x + y = 430

y = x - 70

Para resolverlo, podemos reemplazar la segunda ecuación en la primera:

x + y = 430

x + (x - 70) = 430

2x = 430 + 70 = 500

x = 500/2 = 250

Se vendieron 250 boletos de adulto.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

#SPJ1

5 0
2 years ago
Please helppp<br> solve for y
erastovalidia [21]

Answer: y=\frac{-x}{w-3}

Step-by-step explanation:

To solve for y, we want to isolate y.

w=\frac{3y-x}{y}             [multiply both sides by y]

yw=3y-x         [subtract both sides by 3y]

yw-3y=-x      [factor out y]

y(w-3)=-x     [divide both sides by (w-3)]

y=\frac{-x}{w-3}

Now, we know that y=\frac{-x}{w-3}.

5 0
3 years ago
Please help me <br> A?<br> B?<br> C?<br> D?
MrMuchimi

Answer:

B

Step-by-step explanation:

4 0
3 years ago
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