MATHEMATICS MIDDLE SCHOOL

I don’t know how to work this out
I don’t know how to work this out - 1

Answers

Answer 1
Answer:

Answer:

h ≈ 11.3

Step-by-step explanation:

Since the triangle is right we can use the tangent ratio to solve for h

tan37° = (opposite)/(adjacent) = (h)/(15)

Multiply both sides by 15

15 × tan37° = h

⇒ h = 11.3 cm ( to 1 dec. place )
Answer 2
Answer:

Answer:

your answer is 11.3cm

Step-by-step explanation:

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How to find circumference of a circle​

Answers

Answer:

C=2πr

Step-by-step explanation:

The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle.

If a circle has a diameter of 4, its circumference is 3.14*4=12.56.

If you know the radius, the diameter is twice as large.

Answer:

the formula is C = 2(pi)r

How much work is done by aCrane that lowers 1,000 newtons
Of material a distance of 150
meters?

Answers

work done = force x distance 
W= 1000 x 150
   = 150,000 J 

Angle 3 measures 54 degrees
What is the measure of angle 1?

Answers

Answer: 54\°

Step-by-step explanation:

Angles 1 and 3 are opposite angles, and in geometry  there is a rule related to these type of angles:

"All opposite angles (angles opposed by the vertex) are equal"

Hence, if angle 3 measures 54\°angle 1 meaures  54\° as well.

Answer:

the measure of angle 1 is also 54° because it is vertical to angle 3

Are all parallelograms rhombi

Answers

No, because a rhombus is a type of parallelogram with four congruent angles and sides.

Choose Yes or No to tell whether the expression represents a 20% discount off the price of an item that originally cost d dollars.0.8d

d – 0.2

d – 0.2d

1 – 0.2d

Answers

Yes. That is the complete answer?

A softball player gets a hit 22% of thetimes she is at bat. In 50 times at bat
about how many hits will the player get?

Answers

Since 22% Is less than 100% (100%=1 in numbers) (22%) will equal .22

So in a calcuator or by hand you can do this equation and solve
.22 X 50=? 
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