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aivan3 [116]
2 years ago
11

Someone plz help me

Mathematics
2 answers:
Andrews [41]2 years ago
8 0

Answer:

Decagon

Step-by-step explanation:

A decagon has 10 vertices. which is greater than the number of vertices a pentagon, hexagon, and octagon has

Brilliant_brown [7]2 years ago
3 0
I think it is decagon
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Brian cut a piece of cardboard in the shape of a trapezoid the area of the cut out is 43.5 cm² if the bases are 6 cm And 8.5 cm
Likurg_2 [28]

Answer: the height of the trapezoid is 6 cm

Step-by-step explanation:

The formula for determining the area of a trapezoid is expressed as

Area = 1/2(a + b)h

Where

a and b are the length of The bases are the 2 sides of the trapezoid which are parallel with one another.

h represents the height of the trapezoid.

From the information given,

a = 6 cm

b = 8.5 cm

If the area of the cut out is 43.5 cm², then

53.5 = 1/2(6 + 8.5)h

Cross multiplying by 2, it becomes

43.5 × 2 = (6 + 8.5)h

87 = 14.5h

h = 87/14.5 = 6 cm

8 0
2 years ago
Evaluate the expression3+(a+4)(8-b) when a = 5 and b = 6
castortr0y [4]

Answer:

21

Step-by-step explanation:

3+(a+4)(8-b)

3+(5+4)(8-6)

3+(9)(2)

3+18

21

8 0
3 years ago
Please choose the answer that describes the scientific notation for 3,134,000,000
topjm [15]

Answer:

= 3.134 × 10^9

(scientific notation)

= 3.134e9

(scientific e notation)

= 3.134 × 10^9

(engineering notation)

(billion; prefix giga- (G))

= 3134000000

(real number)

Step-by-step explanation:


6 0
2 years ago
In ΔABC, BC = 4 centimeters, m∠B = m∠C, and m∠A = 20°. What is AC to two decimal places?
ipn [44]
M<A = <span>20°
m<B = m<C = 8</span><span>0°

</span>Law of Sines , in any triangle we have
a/sin A = b/sin B = c/sin c<span>

4/sin20 = AC/sin80 = AB/sin80

now we can solve AC

</span>4/sin20 = AC/sin80
<span>AC = 4 (sin80)/ sin20
AC = 4(0.98) / (0.34)
AC = 3.92 / 0.34
AC = 11.52

answer

</span>C.11.52 centimeters<span>

</span>
5 0
3 years ago
Read 2 more answers
PLZZ HELP!!!!!!!!!!!!​
Goshia [24]
5.5
8
30
31
42
24
8
Hope this helps:)
3 0
2 years ago
Read 2 more answers
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