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omeli [17]
3 years ago
13

Sofia is helping set up for a wedding. There are 80 chairs that need to be arranged in a room, and 60% of those chairs are still

stacked in the corner.
How many chairs are stacked?
Mathematics
1 answer:
lions [1.4K]3 years ago
4 0
48 is the answer of your mathematics question on this site/app.
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PROVE THESE TRIANGLES ARE CONGRUENT
jenyasd209 [6]

Answer:

These triangles cannot be proved congruent

Step-by-step explanation:

The theorems for congruence are  SSS SAS ASA AAS. Here, there is only one common side and one common angle marked, therefore you cannot prove congruency.

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2 years ago
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What is 0.00078 in scientific notation?
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Answer: 7.8 x 10^-4
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Find the product of 51 and -2.5
Elodia [21]

Answer: -127.5

Hope this helps!

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3 years ago
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Find the area of each sector shown (the shaded section)
mihalych1998 [28]

Answer:

The area of the sector (shaded section) is 29.51 m^{2}.

Step-by-step explanation:

Area of a sector = (θ ÷ 360) \pir^{2}

where θ is the central angle of the sector, and r is the radius of the circle.

From the diagram give, diameter of the circle is 26 m. So that;

r = \frac{diameter}{2}

 = \frac{26}{2} = 13 m

θ = 360 - (180 + 160)

  = 360 - 340

  = 20^{o}

Thus,

area of the given sector = \frac{20}{360} x \frac{22}{7} x (13)^{2}

                                        = \frac{20}{360} x x \frac{22}{7} x 169

                                         = 29.5079

The area of the sector (shaded section) is 29.51 m^{2}.

4 0
3 years ago
A² +6² = c²<br> Find the length of c:
yanalaym [24]
64+36=c^2
100=c^2
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