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Olegator [25]
3 years ago
12

In the problem 3r=9/10 how do you solve this to find out what r is

Mathematics
1 answer:
aniked [119]3 years ago
5 0
One way to solve this problem is by:
First multiply both sides by 10
30r=9
Now divide by 30
r=0.3 Final Answer
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Trayvon has a mug shaped like a hemisphere. Its diameter is 18 cm. To the nearest hundredth, what is the capacity of her mug?
bulgar [2K]

Answer:

The capacity of the mug is 1,527.43 cm^3

Step-by-step explanation:

In this question, we are asked to calculate the capacity of the hemisphere. This is same as calculating the volume of the hemisphere.

A hemisphere is a sharpe which is half a sphere. Meaning to get a hemisphere, we shall be diving a sphere into 2.

Mathematically, the volume of a hemisphere V = 2/3 * π * r^3

Since D = 18cm , r = D/2 = 18cm/2 = 9 cm

The volume V is thus = 2/3 * 22/7 * 9^3

V = 1,527.428 cm^ 3

To the nearest hundredth,

V = 1,527.43 cm^3

6 0
3 years ago
Help me solve this please ❤<br>I will give the right answer brainliest <br>​
luda_lava [24]

Step-by-step explanation:

√((1 + sin x) / (1 − sin x)) + √((1 − sin x) / (1 + sin x))

Square and take the square root.

√[√((1 + sin x) / (1 − sin x)) + √((1 − sin x) / (1 + sin x))]²

√[(1 + sin x) / (1 − sin x) + 2 + (1 − sin x) / (1 + sin x)]

Add the fractions using least common denominator.

√[((1 + sin x)² + (1 − sin x)²) / (1 − sin²x) + 2]

√[(1 + 2 sin x + sin²x + 1 − 2 sin x + sin²x) / (1 − sin²x) + 2]

√[(2 + 2 sin²x) / (1 − sin²x) + 2]

Use Pythagorean identity:

√[(2 + 2 sin²x) / (cos²x) + 2]

√[2 sec²x + 2 tan²x + 2]

√[2 sec²x + 2 (tan²x + 1)]

Use Pythagorean identity:

√[2 sec²x + 2 sec²x]

√[4 sec²x]

±2 sec x

If x is in the second quadrant, then sec x < 0.

-2 sec x

6 0
3 years ago
How munch dose cups go in pints
lions [1.4K]
Two cups in a pint,at least here in the us
3 0
3 years ago
Read 2 more answers
I neeeee helppppppppp
kaheart [24]

Answer:

The pin number is 1147

Step-by-step explanation:

We have given that:

Maritza remembers her PIN because it is the product of two consecutive prime numbers that is between 1000 and 1500.

Pin number is between 1000 and 1500

PIN is the product of two consecutive prime numbers.

Prime numbers are those numbers which are divisible by one or itself only.

So,

prime numbers are 1, 3, 5, 7,………29, 31,37, 41, …..

Multiply  29 x 31 = 899  which does not come in the range of 1000 and 1500.

Next,

31 x 37 = 1147 this is between 1000 and 1500

Next

37 x 41 = 1517, which is above 1500.

Thus the pin number is 1147....

7 0
3 years ago
Solve the proportion 6/y=9/24
anzhelika [568]

Answer:

It would be 16!

Step-by-step explanation:

Step 1 : 6 times 24 is 144

Step 2 : 144/9

Answer 16!

7 0
3 years ago
Read 2 more answers
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