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3 years ago

(need help asap)

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

7 0

Step-by-step explanation:

give more points then I will tell

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The surface area of the solid is about ____ inches squared

Dafna11 [192]

Answer:

Surface area of the whole figure $= 320.28inch^2$

Step-by-step explanation:

The surface area of the figure :

Surface area of the cylinder(excluding top)+Surface area of the cone(excluding bottom)

Radius of the cylinder=3 inch and Height of cylinder=13 inch

Surface area of the cylinder with one circular face

$=2\pi rh+\pi r^2$

As, $\pi =\frac{22}{7}= 3.14$

$=(2*3.14*3*13)+(3.14*3*3)\\\\=244.92+28.26\\\\=273.18inch^2$

Surface area of the cone excluding base:

$=\pi *r*l$

l= slant height=5 inch r= radius= 3 inch

Surface area of the cone = $3.14*3*5$

$=47.1inch^2$

Total surface area of the whole figure $=273.18+47.1$

$= 320.28inch^2$

5 0

3 years ago

Solve mathematics problem in photo please! Second

Sholpan [36]

Hello,

8+h>2+3h
==>-2h>2-8
==>-2h>-6
==>h<3

Answer C

4 0

3 years ago

Find the inverse of the function.<br> f(x) = -3x + 7

LUCKY_DIMON [66]

F(x) = -3x + 7
y = -3x + 7
x = -3y + 7
-3y + 7 = x
-3y = x - 7
y = -1/3x + 7/3
f^-1(x) = -1/3x + 7/3

8 0

2 years ago

ILL MARK BRAINILEST !! 80 POINTS

mixas84 [53]

$\\ \rm\rightarrowtail y=x^2-10x+16$

$\\ \rm\rightarrowtail y=x^2-10x+16+9-9$

$\\ \rm\rightarrowtail y=x^2-10x+25-9$

$\\ \rm\rightarrowtail y=(x-5)^2-9$

Vertex form

y=a(x-h)^2+k

vertex:-

(h,k)=(5,-9)

6 0

2 years ago

What is the answer of this questoin 2c-3b+6+7b-2b+11?

Katena32 [7]

Answer:

$2c+2b+17$

Step-by-step explanation:

-----------------------

Given:

$2c-3b+6+7b-2b+11$

---------->>>>

Collect like terms.

$2c+(-3b+7b-2b)+(6+11)$

---------->>>>

Simplify

$2c+2b+17$

------------------------

Hope this is helpful.

7 0

2 years ago

Read 2 more answers