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4 years ago

(-2)to the 8th power = (-2) (-2) (-2) (-2)(-2)(-2)(-2)(-2) =258

Mathematics

2 answers:

Mandarinka [93]4 years ago

6 0

Answer:

the answer to this would be 256.

Step-by-step explanation:

before explaining this,

- negative x negative = positive

- positive x positive = positive

- negative x positive = negative

- positive x negative = negative

this would be because -2 x -2 it equals 4. then, we multiply 4 x -2 and we get -8, then we multiply -8 x -2 and we get 16, then we keep doing the same thing until we get the answer/ used all the -2's.

1. -2 x -2 = 4

2. 4 x -2 = -8

3. -8 x -2 = 16

4. 16 x -2 = -32

5. -32 x -2 = 64

6. 64 x -2 = -128

7. -128 x -2 = 256

saw5 [17]4 years ago

3 0

Answer: .-. am confuse you just answered the question mate XDD

Step-by-step explanation:

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Nesterboy [21]

Answer:

area = 50 cm²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

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

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

Here h = 4, a = 15 and b = 10, thus

A = $\frac{1}{2}$ × 4 × (15 + 10) = 2 × 25 = 50 cm²

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4 years ago

Estimate the area of tje fan if m

kati45 [8]

Answer:

Area of the given fan is 763.4 cm²

Step-by-step explanation:

Area of a sector in a circle = $\frac{\theta}{360}(\pi r^2)$

Here, angle θ = Central angle subtended by the arc

r = Radius of the circle

Since, fan is in the form of a sector of a circle with radius = 27 cm

Measure of the central angle subtended by the arc FN = ∠FAN = 120°

Area of the fan = $\frac{120}{360}(\pi )(27)^2$

= $\frac{729\pi }{3}$

= 243π

= 763.407

≈ 763.4 cm²

Therefore, area of the given fan is 763.4 cm²

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3 years ago

Eva estimates the 475 songs will fit on MP3 player. The actual amount of songs that fit is 380 find the percent error

AleksAgata [21]

475 songs- 380 songs= 95 songs

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4 years ago

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ValentinkaMS [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Given the functions k(x) = 2x2 − 7 and p(x) = x − 4, find (k ∘ p)(x).

Fynjy0 [20]

For this case we have the following functions:

$k (x) = 2x ^ 2-7\\p (x) = x-4$

We must find $(k_ {0} p) (x)$ . By definition of compound functions we have to:

$(k_ {0} p) (x) = k (p (x))$

So:

Taking into account that:

$(a-b) ^ 2 = a ^ 2-2ab + b ^ 2$

Different signs are subtracted and the major sign is placed.

$k (p (x)) = 2 (x-4) ^ 2-7 = 2 (x ^ 2-2 (x) (4) + 4 ^ 2) -7 = 2 (x ^ 2-8x + 16) -7 = 2x ^ 2-16x + 32-7 = 2x ^ 2-16x + 25$

Finally we have to:

$(k_ {o} p) (x) = 2x ^ 2-16x + 25$

Answer:

$(k_ {o} p) (x) = 2x ^ 2-16x + 25$

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3 years ago