ASAP HELP NEEDED WITH THIS QUESTION

Surface area of hemisphere with diameter of 18

saul85 [17]

Answer:

In terms of pi: 243 $\pi$

in decimal form: 763.407

Step-by-step explanation:

to find surface area of a hemisphere the formula is,

$3\pi r^{2}$

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

$3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407$

6 0

2 years ago

HELP ME PLZ I NEED HELP

german

Answer:

A

Step-by-step explanation:

$\frac{12}{a} = \frac{9}{b} => 12b = 9a$

$12 * 1.5 = 9 * 2$

$18 = 18$

This option works

5 0

3 years ago

A furniture company is producing three types of furniture. Product A requires 7 board feet of wood and 4 lbs of wicker. Product

saveliy_v [14]

Step-by-step explanation:

this is a linear programming problem, and we are expected to draw up the linear program for the solution of the problem.

The objective function is

Maximize

35A+42B+20C=P

subject to constraints(board and wicker)

The constraints are

board

7A+5B+4C=3000

wicker

4A+5B+3C=1400

A>0, B>0, C>0

5 0

3 years ago

Write explicit formula for a1=3, r=-2; then generate 1st 5 terms

Crazy boy [7]

Answer:

an = 3(-2)^(n-1)
3, -6, 12, -24, 48

Step-by-step explanation:

These variable names, a1, r, are commonly used in relationship to geometric sequences. We assume you want the terms of a geometric sequence with these characteristics.

a1 is the first term. r is the ratio between terms, so is the factor to find the next term from the previous one.

a1 = 3 (given)

a2 = a1×r = 3×(-2) = -6

a3 = a2×r = (-6)(-2) = 12

a4 = a3×r = (12)(-2) = -24

a5 = a4×r = (-24)(-2) = 48

The first 5 terms are 3, -6, 12, -24, 48.

__

The explicit formula for the terms of a geometric sequence is ...

an = a1×r^(n -1)

Using the given values of a1 and r, the explicit formula for this sequence is ...

an = 3(-2)^(n -1)

6 0

3 years ago

What is the square inches?

otez555 [7]

Answer:

given :-

for rectangular part: length=12in, breadth=8in

for triangular part:base=8in, height=3in

area of the given fig:

area of the given fig:area of 2 triangles +area of rectangle 

 $→2( \frac{1}{2} \times b \times h) + l \times b \\ →2( \frac{1}{2} \times 8 \times 3) + 12 \times 8 \\ →24 + 96 \\ → {120in}^{2}$ 

<h2>hope it helps you<3</h2>

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5 0

2 years ago