3 years ago

What’s the are of a trapezoid

Mathematics

1 answer:

kozerog [31]3 years ago

5 0

I need to know the question that tells us what the other parts are.

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A sprinter travels a distance of 100 m in a time of 11.21 seconds.

sergiy2304 [10]

Answer:

distance travelled by sprinter = 100 m

Time taken = 11.21sec

∵speed = distance/time taken

= 100/9.83

= 10.17 m/s

Now we know, 1 km/h = 1000/3600 m/s

so, 1 m/s = 3600/1000 km/h = 18/5 km/h

∴ 10.17 m/s = 10.17 × 18/5 = 10.17 × 18/5 = 36.612 km/h

Hence, average speed = 36.612 km/h

Step-by-step explanation:

6 0

3 years ago

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Two jars of sweets have the same amount of sweets inside.

Serga [27]

Answer:

4 sweets are orange in jar B

Step-by-step explanation:

8 0

2 years ago

hi:) for 5(b) , I got 157.7 & 22.3 but in the answer key, the only correct answer is 157.7. I thought there should be 2 poss

n200080 [17]

Answer:

Θ = 157.7°

Step-by-step explanation:

Given

cosΘ = - 0.925

Since cosΘ < 0 then Θ is in the second or third quadrant.

Since 0° ≤ Θ ≤ 180° then Θ is in the second quadrant. thus

Θ = $cos^{-1}$ (- 0.925) = 157.7° ← angle in second quadrant

8 0

4 years ago

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H^-2g for h=3 and g=27

Alexeev081 [22]

Plug h = 3 and g = 27 into the expression:

$h^{-2}g= \dfrac{g}{h^2} = \dfrac{27}{3^2} = \dfrac{27}{9} = 3$

3 0

3 years ago

Dominik [7]

Answer:

Step-by-step explanation:

4 0

3 years ago