All categories

4 years ago

Find the perimeter of this semi-circle with diameter, d = 46cm,

Mathematics

1 answer:

alukav5142 [94]4 years ago

6 0

Answer:

$\frac{\pi d}{2} +d$

Step-by-step explanation:

Circumference of circle = $\pi d$

Therefore,

Curved side of semi-circle= $\pi d / 2$

Perimeter of semi-circle= Curved side + diameter (straight side)

= $\frac{\pi d}{2} +d$

You might be interested in

In a class the ratio of boys to girls is 4:3 30% of the boys are left handed.

alex41 [277]

3/10 or 30/100 are left handed boys bc that is 30% converted into a fraction

6 0

3 years ago

Which shows the rational expression written using the least common denominator?

aleksandr82 [10.1K]

Answer:

(x + 1)/4x² + 4(x + 1)/4x²

Step-by-step explanation:

x+1/4x² + x+1/x²

The above can be simply as follow:

Find the least common multiple (LCM) of 4x² and x². The result is 4x²

Now Divide the LCM by the denominator of each term and multiply the result with the numerator as show below:

(4x² ÷ 4x²) × (x + 1) = x + 1

(4x² ÷ x²) × (x + 1) = 4(x + 1)

x+1/4x² + x+1/x² = [(x + 1) + 4(x + 1)]/ 4x²

= (x + 1)/4x² + 4(x + 1)/4x²

Therefore,

x+1/4x² + x+1/x² = (x + 1)/4x² + 4(x + 1)/4x²

5 0

3 years ago

A house is worth 125,000 when it is 2 years old and 135,150 when it is 7 years old. According to this model, how much will the h

kicyunya [14]

Answer:111650

Step-by-step explanation:i think its right

4 0

3 years ago

Find p(0),p(1),p(-1) and p(2) of the 3x(x-2)

Effectus [21]

Answer:

make x→0

$p(0)=(0)^{2}-3(0)+2$

→ $p(0)=0+0+2$

→ $p(0)=2$

$------$

Replace x→-1

$p(-1)=(-1) ^{2} -3 (-1)+2$

→ $p(-1)=1-3+2$

→ $p(-1)=0$

$----------$

Now make x→2

$p(2)=(2) ^{2} -3(2)+2$

→ $p(2)=4-6+2$

→ $p(2)=0$

$Answer:-2,0,0$

$-----------$

hope it helps...

have a great day!!

5 0

3 years ago

Deshaun made 143 for 11 hours of work. At the same rate, how much would he make for 9 hours of work?

Ivanshal [37]

Answer:

117

Step-by-step explanation: 143\11=13

then multiply 13 by 9 and that equals 117

7 0

3 years ago

Read 2 more answers