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3 years ago

Daniel drove 750 miles from his home to Texas. If x represents the number of hours Daniel drove, which expression could be

Mathematics

2 answers:

Allushta [10]3 years ago

7 0

Answer:

750/x=

Step-by-step explanation:

Hope this helps :))

11111nata11111 [884]3 years ago

4 0

Answer:750/x

Step-by-step explanation:

speed = distance ÷ time

= 750 ÷ x

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Semicircles

Studentka2010 [4]

Answer:

The area of the shaded portion of the figure is $9.1\ cm^2$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The shaded area is equal to the area of the square less the area not shaded.

There are 4 "not shaded" regions.

step 1

Find the area of square ABCD

The area of square is equal to

$A=b^2$

where

b is the length side of the square

we have

$b=4\ cm$

substitute

$A=4^2=16\ cm^2$

step 2

We can find the area of 2 "not shaded" regions by calculating the area of the square less two semi-circles (one circle):

The area of circle is equal to

$A=\pi r^{2}$

The diameter of the circle is equal to the length side of the square

$r=\frac{b}{2}=\frac{4}{2}=2\ cm$ ---> radius is half the diameter

substitute

$A=\pi (2)^{2}$

$A=4\pi\ cm^2$

Therefore, the area of 2 "not-shaded" regions is:

$A=(16-4\pi) \ cm^2$

and the area of 4 "not-shaded" regions is:

$A=2(16-4\pi)=(32-8\pi)\ cm^2$

step 3

Find the area of the shaded region

Remember that the area of the shaded region is the area of the square less 4 "not shaded" regions:

$A=16-(32-8\pi)=(8\pi-16)\ cm^2$

---> exact value

assume

$\pi =3.14$

substitute

$A=(8(3.14)-16)=9.1\ cm^2$

8 0

3 years ago

Which is equivalent to cos^-1(0) answer in radian

ruslelena [56]

Answer:

Step-by-step explanation:

cos ^-1(0)=(2n+1) π/2

where n is an integer.

if 0 ≤α ≤2 π

n=0,1

cos ^-1(0)=π/2,3π/2

8 0

3 years ago

Write the following numbers in order of size

Anon25 [30]

7/10,.72,75%,4/5,.9 hope this helped

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3 years ago

Read 2 more answers

Rename the fraction as a decimal.<br><br> 4/16=

aleksandrvk [35]

Answer:

0.25

Step-by-step explanation:

simplify 4/16 to 1/4.

multiply 1/4 by 25/25.

then you get 25/100, which equals to 0.25

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2 years ago

How much money is saved on an $80 coat that has been reduced 30%. If you could show me how this is done I would be super gratefu

pentagon [3]

You would get 24$ off of it

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