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3 years ago

Can I get help please?!?

Mathematics

2 answers:

Kamila [148]3 years ago

4 0

Answer:

114

Step-by-step explanation:

Both angle 8 and angle 1 have the same measure, so angle 1 would also be 114 degrees

Kaylis [27]3 years ago

4 0

Answer:

m∠=114°

Step-by-step explanation:

m∠8=m∠3= 114° (vert. opp ∠'s)

Therefore

m∠3=m∠1= 114° (corresponding angles, parallel lines)

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If a 100 m. diameter wind turbine is exposed to 7 m/s wind with an air density of 1.25 kg/m what is the electricity produced by

Yuliya22 [10]

Answer:

electric energy = 980 J

Step-by-step explanation:

Given,

Diameter of wind turbine = 100 m

Speed of wind,v = 7 m/s

Density of air = 1.25 kg/m

Hence, the total mass of air enters into turbine =Speed of wind x Diameter of wind turbine

= 1.25 x 100

= 125 kg

Hence, total mechanical energy of turbine can be given by,

$E\ =\ \dfrac{1}{2}.m.v^2$

$=\ \dfrac{1}{2}\times 125\times 7^2$

= 3062.5 J

Efficiency of turbine = 32%

Hence,

total electric energy = 32% of mechanical energy

$=\dfrac{32}{100}\times 3062.5\ J$

= 980 J

So, the total electric energy produced by the turbine will be 980 J.

6 0

3 years ago

almonds cost 3.49$ per pound. a bag of almonds cost 6.95$. to the nearest whole pound, about how many pounds of almonds are in t

ololo11 [35]

There are ~2 lbs in the bag

3 0

3 years ago

Estimate the amount of time the trip will take. 290 miles at 60 mph 5 hours 6 hours 4 hours 3 hours

Likurg_2 [28]

Answer:

It would take about 5 hours.

Step-by-step explanation:

Divide 290 miles and 60 mph to get 4.8 repeated.

Round 4.8 to get around 5 hours.

4 0

4 years ago

115 - 12

adell [148]

Answer:

Step-by-step explanation:

|15-12|/4 = 3/4

|(-21+9)/8| = |-12/8| = 12/8 = 3/2 (Simply)

3/4 - 3/2 = -3/4

So the answer is B.

7 0

3 years ago

is the area of a semicircle with a diameter of 2x greater than, less than, or equal the area of a circle with a radius of x

White raven [17]

Answer:

equal to

Step-by-step explanation:

A circle with a diameter of 2x has a radius of x, so will have the same area as a circle with a radius of x.

3 0

4 years ago