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Temka [501]
3 years ago
9

Please Help me with my Math questions!

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0

Answer:

1.C 2.B 3.A 4.C 5. A 6.B 7.D 8.B

Step-by-step explanation:

Find a multiple that the numbers share in common

ex) 1. 6/9 ---> 6*2=12 and 9*2=18

When multiplying fractions multiply them across and simply.

ex) 4. 2/7*3/4=6/28

            6/28=3/14

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3 years ago
Hi,so I've tried solving this problem for a while and I just don't get it,if you could give me some ideas I would appreciate it.
ziro4ka [17]

Answer:

187 cm²

Step-by-step explanation:

The bottom rectangle area is easy, it is 15*9 = 135 cm².

To find the area of the triangle, you only need the base width and its height (you don't need the hypotenuse). You can then use the formula: area triangle is base times half height.

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4 0
3 years ago
Una pelota sale disparada desde el nivel del suelo, con una velocidad de 40 m/s y un ángulo de elevación de 50°. a) Calcule la a
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Respuesta:

Los 47.85m

Explicación paso a paso:

Altura máxima = u²sin²Ф / 2g

Dado

velocidad u = 40 m / s

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g = 9,81 m / s²

Sustituir'

H = 40²sin²50 / 2 (9,81)

H = 1600 (0,7660) ² / 19,62

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H = 938,8096 / 19,62

H = 47,85 m

Por lo tanto, la altura máxima es de 47,85 m.

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Answer:

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Step-by-step explanation:

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