All categories

2 years ago

If the curved surface area of a cylinder with height 15cm is 1320cm², find total surface area

Mathematics

2 answers:

Zarrin [17]2 years ago

7 0

Step-by-step explanation:

i think it will help you please give me Brainlist bro

asambeis [7]2 years ago

4 0

Answer:

2552cm^2

Step-by-step explanation:

C.S.A=1320cm^2 ;r=?

h=15cm.

[C.S.A. = 2πrh]

(r=1320×7/660=14cm)

Now,

TSA of cylinder = 2πr (h + r) sq

TSA=2×22/7(15+14)=2552cm^2

You might be interested in

Answer to 42.7 -(-12.4)

Aleks [24]

42.7−(−12.4)

=42.7−(−12.4)

=42.7+12.4

=55.1

4 0

3 years ago

A silversmith mixed 100 g of a 40% silver alloy with 40 g of

notsponge [240]

Hey, don’t call for that link thing. It’s fake. Here’s how I solved this: x = [35(80%) + 70(25%)]/(35 + 70) = 43.3%

The answer is 43.3%

6 0

2 years ago

4. I need help with question in the attached picture!

Arisa [49]

ANSWER

D. 13

EXPLANATION

We have

$f(x) = \frac{2x + 1}{x - 4}$

To find

${f}^{ - 1} (3)$

means we want to find an x-value whose image is 3.

$\frac{2x + 1}{x - 4} = 3$

We cross multiply,

$2x + 1 = 3(x - 4)$

Expand:

$2x + 1 = 3x - 12$

Combine like terms,

$3x - 2x = 12 + 1$

$x = 13$

$\therefore{f}^{ - 1} (3)= 13$

4 0

2 years ago

Read 2 more answers

1) A dog eats 12 of a cup of dog food per meal. How many meals are in a 6-cup bag of dog food?

malfutka [58]

Answer:

1/2

Step-by-step explanation:

The dog has 12 for 1 meal.

12=1

6 is half of 12.

6=1/2

4 0

2 years ago

Find the requested information based on the given facts. Base: $54,300: Total Sales: $950,000; Commission: 2.75% Determine the t

Dafna11 [192]

Answer:

$871068.25

Step-by-step explanation:

Given the base of starting the business is $54300 and the total sale after the business is $950000.

Therefore, the profit of the business is $(950000-54300) = $895700.

Now, the commission has to be deducted from the profit at the rate of 2.75% of the profit.

Hence, total profit of the business is given by

895700 [1 - $\frac{2.75}{100}$ ] = $871068.25 (Answer)

6 0

3 years ago

If the curved surface area of a cylinder with height 15cm is 1320cm², find total surface area​

If the curved surface area of a cylinder with height 15cm is 1320cm², find total surface area