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aleksley [76]
3 years ago
15

The new dolphin tank at the aquarium has a radius of 75 feet and a height of 20 feet. What is the volume of the dolphin tank? Ro

und to the nearest tenth. Use 3.14 for pie
Mathematics
1 answer:
stiks02 [169]3 years ago
7 0
<span>I got 353250 as the correct answer.</span>
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X^2 + 18x + c = 25 +c
svet-max [94.6K]
Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)
7 0
3 years ago
Given that the product of two positive integers is 44, and their least common multiple is 22, what is their greatest common divi
swat32

Answer:

2

Step-by-step explanation:

For any positive numbers a,b we always have the following identity:

a\cdot b=gcd(a,b)\cdot lcm(a,b)

(gcd(a,b) denotes the greatest common divisor between a and b, and lcm(a,b) denotes the least common multiple between a and b)

In our case, we are given that a\cdot b = 44 and that lcm(a,b)=22. Plugging that in into our identity, we get:

44=gcd(a,b)\cdot 22

And so solving for gcd(a,b):

gcd(a,b)=\frac{44}{22}=2

5 0
3 years ago
Lester's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 80 espressos in all,
bogdanovich [222]

Answer:

64 single-shot espressos

Step-by-step explanation:

Let's say that the cafe sold x single-shot espressos. The total number of espressos sold was 80, and 80% of that total 80 were single-shot. So, we have the equation:

x = 80% * 80

Remember that % just means "out of 100". So, 80% = 80/100:

x = (80/100) * 80 = 6400/100 = 64 single-shot espressos

Hope this helps!

7 0
3 years ago
Read 2 more answers
What is the integral of ∫4x^2 dx
Nataly_w [17]

Answer:

\boxed{\frac{4}{3} x^3 + c}

Step-by-step explanation:

\int\limits {4x^2} \ dx

= \frac{4}{3} x^3 + c

5 0
3 years ago
Read 2 more answers
Katya has several sources of income, listed in the table. Which are considered earned income? *****Select all that apply.******
Lady_Fox [76]

Answer: $1300 per month salary

2% commission on all sales

3 0
3 years ago
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