3 years ago

I didn’t really understand number 9

Mathematics

1 answer:

Leona [35]3 years ago

7 0

1/2 m × 1/2 m × 1/2 m = s³

your answer should be 1/8 m³

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Diano4ka-milaya [45]

40,600x10=406,000 lol dude its easy

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3 years ago

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Calculate the area of this trapezium. 7.9 cm 6.2 cm 10.8 cm

cestrela7 [59]

Answer:

A = 57.97 cm²

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = $\frac{1}{2}$ h (a + b)

where h is the perpendicular height and a, b the parallel bases

Here h = 6.2, a = 10.8 and b = 7.9, thus

A = $\frac{1}{2}$ × 6.2 × (10.8 + 7.9) = 3.1 × 18.7 = 57.97 cm²

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3 years ago

Please help me find the answer

zheka24 [161]

The statement is always true because right angles measure 90 degrees and if you add them you get 180 and supplementary angles are angles that add up to 180.

Hope this helps :)

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3 years ago

Solve for the roots in simplest form using the quadratic formula: 4x2 + 4x = -5

weqwewe [10]

Answer:

Step-by-step explanation:

Move all terms to one side

4x^2 + 4x + 5 = 0

Plug into quadratic formula

x = (-4 + $\sqrt{16 - 4(4)(5)}$ ) / 2(4)

= (-4 + $\sqrt{-64}$ )/8

At this point, there are no real answers. The roots to this equation are complex.

x = (-4 + 8i)/8

= (-1 + 2i)/2

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3 years ago

Which of these numbers has the greatest absolute value-3 1 -9 5

Burka [1]

I believe it is the 9, with absolute values the number will always be positive so the absolute value of -9 is 9, which is the greatest out of all the options

3 0

3 years ago