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2 years ago

Which expression is equivalent to (5^-2)(5^-1) A. -1/125 B. -1/5 C.1/125 D.1/5

Mathematics

1 answer:

alexandr402 [8]2 years ago

8 0

Answer:is 5 ^ -2 ????

Step-by-step explanation:

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Lewis is 0.9 metres tall. Tim is 0.15 metres taller than Lewis. How tall is Tim?

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Answer:

D33Z NUTZ

Step-by-step explanation:

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3 years ago

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Alex has 520 yards of fencing to enclose a rectangular area.

Pavlova-9 [17]

Perimeter =2w+2L= 520.
We can solve this by understanding that the area is maximized by a square
Therefore L=w.

p=2w+2w=520=4w
w=130

Area

A=wL=130(130)= 16900 square yards

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3 years ago

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7) Find the area of the shaded region:

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

The area of the biggest rectangle =

$(9x - 2)(2x + 7) = 18 {x}^{2} + 63x - 4x - 14 = 18 {x}^{2} + 59x - 14$

The area of the of the smallest rectangle inside=

$3x(x + 12) = 3 {x }^{2} + 36x$

Then the area of the shaded region =

$18 {x}^{2} + 59x - 14 - (3 {x}^{2} + 36x) = 18 {x}^{2} + 59x - 14 - 3 {x}^{2} - 36x = 15 {x}^{2} + 23x - 14$

So, we choose B.

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3 years ago

Y= Pls help solve for

miss Akunina [59]

Answer:

$y=39\degree$

Step-by-step explanation:

The given triangle is a right angle triangle .

The known sides of the triangle that is opposite to angle y is 8 units while the side adjacent is 10 units.

The value of y can be calculated using the tangent ratio.

$\tan(y)=\frac{8}{10}$

We solve for y to get,

$y=arctan(\frac{4}{5})$

We evaluate to obtain,

$y=38.66$

$y=39\degree$ to the nearest degree

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3 years ago

If four of the exterior angles of a convex pentagon measure

MakcuM [25]

Answer:

120 degrees.

Step-by-step explanation:

The 5 exterior angles sum to 360 degrees.

So the 5th exterior angle = 360 - 4(60)

= 360 - 240

= 120 degrees.

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3 years ago

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