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Simora [160]
3 years ago
8

I need help on these two

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0

Answer:

For the first one the diameter is 22. Circumference is 69.08. Area is 379.94

Second question is radius is 12. Circumference is 75.36. Area is 452.16

Step-by-step explanation:

Radius = d/2

Diameter = r*2

Circumference = 3.14*d

Area = r^2*3.14

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Graph this function:<br> y - 7 = -5(x + 5)
Komok [63]

Answer:

Look at the graph for help

Step-by-step explanation:

if you need to graph us desmos graphing its free just plug in you cordinates

8 0
3 years ago
1/2x 3/4=1/2X -2/3<br> ayudaaaaaaaaaaaaaaaaaaaa
Elodia [21]

1/2 or 0.5 x 3/4 or 0.75 = 0.375 or 3/8

the rest I dont' understand what you wrote, is it a subtraction or a negative?

6 0
3 years ago
The base of a solid in the region bounded by the parabola x2 + y = 4 and the line x + y = 2. Cross sections of the solid perpend
Evgen [1.6K]

Answer:

volume of the solid is 3.180

Step-by-step explanation:

given data

line x + y = 2

parabola  x2 + y = 4

to find out

the volume of the solid

solution

we draw a graph between line and parabola as show in fig given below attach

line cut at (-1,3) and (2,0)

so the length of diameter is ( 4 - x²) - (2 - x)

and radius of this semi circle will be ( 4 - x² - 2 + x ) /2

radius = (-x² + x + 2 ) /2

and r(x) will be  =  (-x² + x + 2 ) /2

and A(x) will be  = π ( r(x)² ) /2

we will integrate from -1 to 2

= \int_{-1}^{2}A(x))

= \int_{-1}^{2}(π ( (-x² + x + 2 ) /2)² ) /2))

= 81π / 20

volume of the solid is 3.180

4 0
3 years ago
Which statement MUST be true?
romanna [79]
The answer is C

The reason being these two sets of angles are opposite angles (also known as vertical angles) and opposite angles are always congruent.
7 0
3 years ago
I am not sure how to answer this
Zina [86]

Answer:

0.613 ...............................

8 0
1 year ago
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