All categories

2 years ago

How do you work out the value of x?

Mathematics

2 answers:

denis23 [38]2 years ago

6 0

Answer: 45

Step-by-step explanation:

The total degrees in a circle is 360.

The perpendicular angle that you see is 90 degrees, added to angles of x and 3x, you get the total degrees.

so 90 + x + 3x = 90 + 4x = total

90 + 4x = 360

4x = 180

x = 45 degrees

densk [106]2 years ago

5 0

Answer:

360=90 degrees+x+3x

360-90=270 degrees

270÷4x

67.5 degrees

The answer is x=67.5 degrees

You might be interested in

Solve for x, I'm confused

IrinaVladis [17]

Both angles have to be 90 so if you find the value for x for one you get the other one ahmatically answer is 22 btw :)

8 0

1 year ago

Read 2 more answers

For a triangle to be classified as equilateral, what must all three angles measure? Do not include the degree symbol in your

OleMash [197]

Answer:

I think the answer is 60.

8 0

2 years ago

Can someone help me with this question please.

suter [353]

Answer:

Between 3 and 4 hours

Step-by-step explanation:

Based on the graph when it went from 3 to 4 hours no snow had fallen at all.

6 0

2 years ago

Approximate the change in the volume of a sphere when its radius changes from r= 5ft to r= 5.1ft (v(r)= 3/4 pi r^3)?

leva [86]

Answer:

18.03 cubic feet

Step-by-step explanation:

Hello,

Step 1

find the volume of the sphere when radius= 5 ft

$v(r)= \frac{3}{4} \pi r^3\\v(5)= \frac{3}{4}\pi (5\ ft)^3\\v(5)= \frac{3}{4}\pi *125\ ft^{3} \\v(5)=294.52\ cubic\ feet\\$

Step 2

find the volume of the sphere when radius= 5.1 ft

$v(r)= \frac{3}{4}\pi r^3\\v(5.1)= \frac{3}{4} \pi (5.1\ ft)^3\\v(5.1)= \frac{3}{4}\pi *132.651\ ft^{3} \\v(5.1)=312.551\ cubic\ feet\\\\$

Step 3

Compare the Volumes to find the change

$\frac{v(r_{2})}{v(r_{1})} =\frac{312.551}{294.52} =1.06$

the volumen of the sphere with radius = 5.1 is 1.06 times bigger than the first one(r=5)

Now, find the change

$change= {v(r_{2})-{v(r_{1})}} \\change=312.551\ cubic\ feet\ -294.52 cubic feet \\ change=18.031\ cubic\ feet$

change=18.03 cubic feet

Have a great day.

4 0

2 years ago

Which method would determine the volume of the prism shown below? 2 - cm 4 2 C 2 cm 5 cm 10 unit cubes and 10 one-quarter cubes

Delvig [45]

Answer:

Step-by-step explanation:

3 0

2 years ago