3 years ago

I need help on this question

Mathematics

1 answer:

mash [69]3 years ago

7 0

A regular polygon has all congruent sides and all congruent angles.

A square, a hexagon and an octagon are all good examples of regular polygons.

A rectangle is not.

Second choice.

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A force of 3 pounds acts in the direction of 42 degrees to the horizontal. The force moves an object along a straight line from

EastWind [94]

Answer:

11.37 lb-ft

Step-by-step explanation:

We are given that

Force,F=3 pounds

$\theta=42^{\circ}$

Let Point A (3,7) and point B(8,8)

We have to find the work done by the force.

$d==$

$r=\mid d\mid=\sqrt{x^2+y^2}=\sqrt{5^2+1^2}=\sqrt{26}$ feet

We know that Work done by the force

$W=Frcos\theta$

Substitute the values

$W=3\times \sqrt{26}cos42=11.37 lb-ft$

Hence, the work done by the force =11.37 lb-ft

6 0

3 years ago

Which graph shows the image of the triangle reflected across the line of reflection shown?

olga55 [171]

Answer:

D .points (2,2) (4,4) (0,9)

Step-by-step explanation:

5 0

2 years ago

If these two shapes are similar, what is the measure of the missing length n?

scoundrel [369]

Answer:

39in.

Step-by-step explanation:

due to scale, cant be 15, as that would be the same length as other side

cant be 91 otherwise it wouldnt be similar if it had the same length as blue triangle which has 39 not 15 as the top side

3 0

2 years ago

5/7 = /14 equivalent fraction answer should be?

Alex777 [14]

Answer:

the answer I got is false

Step-by-step explanation:

5/7=14 convert 14 to fraction 98/7

5/7=98/7 compare 5/7 and 98/7

so the maths is false question

3 0

2 years ago

Help asap

anastassius [24]

Answer:

Step-by-step explanation:

The answer is 12 miles, if every inch is 3 miles on the map then 3x4=12.

7 0

2 years ago

Read 2 more answers