1 year ago

Please, please please please help me

Mathematics

1 answer:

Crank1 year ago

7 0

Answer:

its B hope that helps have a great day

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lidiya [134]

Answer:

4. Answer is 19

5. Answer is 77

Step-by-step explanation:

65-(-12)

= 65+12

=77

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2 years ago

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If 3 is subtracted from twice a number, the result is 8 less than the number. Write an equation to solve this problem.

lakkis [162]

3 subtracted from twice a number=2x-3
8 less than the number=x-8
2x-3=x-8
x=-5

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2 years ago

The cone shown has a radius of 5 inches and a slant height of 8 inches. Rounded to the nearest whole number, what is the total s

elena55 [62]

Basically apply your radius and slant height to the formula to find the surface area of a cone which is S=3.14r^2+3.14rl

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2 years ago

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In the diagram below, the circle has a radius of 25 inches. the area of the unshaded is 500pi in^2Determine and state the degree

Dmitriy789 [7]

$72^{\circ}$

1) In this question, we are going to make use of the formula for the area of that sector, to find the central angle.

2) So, let's write it out an expression involving the area of a circle, the unshaded area, and the shaded one and then plug into that the given data:

$\begin{gathered} A=\frac{\alpha}{360^{\circ}}\times\pi r^2 \\ A_{Unshaded}+A_{shaded}=A_{Circle} \\ 500\pi+\frac{\alpha}{360}\times\pi r^2=\pi r^2 \\ \\ 500\pi+\frac{α}{360}\pi25^2=25^2\pi \\ \\ 500\pi+\frac{125\piα}{72}=625\pi \\ \\ 500\pi +\frac{125\pi α}{72}-500\pi =625\pi -500\pi \\ \\ \frac{125\pi α}{72}=125\pi \\ \\ \frac{72\times \:125\pi α}{72}=72\times \:125\pi \\ \\ \frac{125\pi α}{125\pi }=\frac{9000\pi }{125\pi } \\ \\ α=72^{\circ} \\ \\ \end{gathered}$

Thus, the centra angle of that shaded area is 72º

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5 months ago

Side -side -angles

ira [324]

Answer:

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Step-by-step explanation:

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2 years ago