3 years ago

Peace be upon you, please. I need help with this exercise now, please

Mathematics

1 answer:

baherus [9]3 years ago

4 0

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Algebra 1 (pic included)

Marizza181 [45]

If you are given that b = 2, then just plug it in:
$2(2)-4 = 4-4 = 0$

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3 years ago

50 is one tenth of what number?

Stella [2.4K]

Answer:

500

Step-by-step explanation:

Well you find one tenth of a number by dividing it by 10

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3 years ago

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Using the inverse trig functions, find the measure of angle A to the nearest degree.

TEA [102]

1. 37 degree. A triangle has 180 there is a right angle 90 and then c is 53 which leaves 37 for a

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3 years ago

Stephanie has completed six homework assignments, which is 40% of the assignments her teacher will give this term. How many assi

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3 years ago

What is the area of the sector with a central angle of 49° and a radius of 11 cm? Use 3.14 for pi and round your final answer to

olga_2 [115]

Answer:

$\boxed{\text{51.71 cm}^{2}}$

Step-by-step explanation:

If the angle θ is in radians, the formula for the area (A) of a sector of a circle is

A = ½r²θ

If θ is in degrees

$A = \dfrac{1}{2}r^{2}\theta \times \dfrac{\pi \text{ rad}}{180^{\circ}}= \pi r^{2}\times\dfrac{\theta }{360}$

Data:

θ = 49°

r = 11 cm

Calculation:

$\begin{array}{rcl}A& = &3.14\times 11^{2}\times\dfrac{49}{360}\\\\ & = &3.14 \times 121 \times 0.1361\\ & = & \mathbf{51.71}\\\end{array}\\\text{The area of the sector is }\boxed{\textbf{51.71 cm}^{2}}$

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3 years ago