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2 years ago

PLs answer correctly will mark brainliest, 40 points

Mathematics

1 answer:

irakobra [83]2 years ago

6 0

Answer:

A, C, A

Step-by-step explanation:

Use properties

(mᵃ)ᵇ = mᵃᵇ
mᵃ*mᵇ = mᵃ⁺ᵇ

10.

(-t⁴)³ = -t⁴ˣ³ = -t¹²
Option A

11.

(t⁸)² = t⁸ˣ² = t¹⁶
Option C

12.

(x⁻³)⁻⁵x⁶ = x⁽⁻³⁾ˣ⁽⁻⁵⁾x⁶ = x¹⁵x⁶ = x¹⁵⁺⁶ = x²¹
Option A

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The expression sin 57° is equal to

ValentinkaMS [17]

Answer:

$cos(33^{\circ})$

Step-by-step explanation:

Given

$sin(57^{\circ})$

Required

Determine an equivalent expression

In trigonometry:

$sin(\theta)= cos(90^{\circ} - \theta)$

In $sin(57^{\circ})$

$\theta=57^{\circ}$

Substitute $57^{\circ}$ for $\theta$

in $sin(\theta)= cos(90^{\circ} - \theta)$

$sin(57^{\circ})= cos(90^{\circ} - 57^{\circ})$

$sin(57^{\circ})= cos(33^{\circ})$

Hence, the equivalent expression is: $cos(33^{\circ})$

5 0

3 years ago

What is the formula for a mid-segment of a triangle

Kipish [7]

The mid-segment of a triangle is defined as the segment formed by connecting the midpoints of any two sides of a triangle. Put simply, it divides two sides of a triangle equally. The midpoint of a side divides the side into two equal segments. Hope this helps!

8 0

3 years ago

An ice cream cone has a diameter of 3 inches.The distance from the top of the cone to the point at the bottom (height) is 5 inch

solong [7]

Answer:

11.781 cubic inches (round accordingly)

Step-by-step explanation:

The formula for the volume of a cone is:

$V=\frac{1}{3}\pi r^{2} h$