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rjkz [21]
3 years ago
15

Please help it would be appreciated

Mathematics
2 answers:
Charra [1.4K]3 years ago
8 0

Answer:

81

Step-by-step explanation:

To find the area of a triangle, multiply the base (in this case 18) times the height (9). 18 times 9 is 162. Divide that by 2 to get the area of the triangle. 162/2=81

scoray [572]3 years ago
5 0

Answer:

81 in^2

Step-by-step explanation:

Well the formula to find an area of a triangle is (bh) / 2

In this case the base is 18 and the height is 9

18*9=162

162/2=81

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108+621 is the same as 100+
notsponge [240]

Answer:

108+621= 100+629 hhh grade 2?

5 0
3 years ago
Trevor ran a race in 1 4/5 hours. He ran a total of 8 1/3 miles. How far did he run in one hour?
gulaghasi [49]

Answer:

4.63

Step-by-step explanation:

4/5 of an hour is 48 minutes

1 4/5 hour is 60 + 48

which is

108 minutes

he ran 8 1/3 miles in 108 minutes

so

(8 1/3 times 60 ) ÷ 108

which =

4.6296296296 miles in one hour

6 0
3 years ago
Read 2 more answers
I need help on this last part of my quiz
Anarel [89]

Answer:

she got yassifiedd

Step-by-step explanation:

its always the yasmine asking us questions and not knowing ANYTHING..

6 0
3 years ago
Por un tubo de 2.5 cm de diámetro fluye agua con una repidez de 20 cm/s ¿Cuál es el valor del flujo y el gasto del agua?
kompoz [17]

Answer:

El flujo y gasto de agua es aproximadamente 98.175 centímetros cúbicos por segundo.

Step-by-step explanation:

El gasto del agua (Q), medido en centímetros cúbicos por segundo, es el flujo que pasa a través del tubo. La ecuación para determinar el gasto es:

Q = \frac{\pi}{4}\cdot D^{2}\cdot v (1)

Donde:

D - Diámetro del tubo, medido en centímetros.

v - Velocidad del flujo, medida en centímetros por segundo.

Si sabemos que D = 2.5\,cm y v = 20\,\frac{cm}{s}, entonces el flujo y gasto del agua es:

Q = \frac{\pi}{4}\cdot (2.5\,cm)^{2}\cdot \left(20\,\frac{cm}{s} \right)

Q \approx 98.175\,\frac{cm^{3}}{s}

El flujo y gasto de agua es aproximadamente 98.175 centímetros cúbicos por segundo.

3 0
3 years ago
100 students were estimated at a
Alina [70]

Answer:

20%

Step-by-step explanation:

Use the formula:

The "|" symbol represents absolute value and the dashed line represents a division line.

                         | Theoretical Value - Actual Value |

Percent Error = --------------------------------------------------   × 100

                         |              Theoretical value              |

  • 100 students is the theoretical value
  • 120 students is the actual value

100 - 120 = -20

-20 / 100 = -0.2

|-0.2| = 0.2

0.2 × 100 = 20

The answer is 20%

7 0
3 years ago
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