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-BARSIC- [3]
2 years ago
14

What is the sum of the first five prime numbers? 18 26 28 39

Mathematics
1 answer:
Kitty [74]2 years ago
8 0

Answer:

28

Step-by-step explanation:

So our first 5 prime numbers are 2,3,5,7,11. Hence, the answer is 28

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How many solutions does this equation have? 7a + 5 (a+3) = 8a + 4 (a+2)
Vlada [557]

Answer:

no solution.

Step-by-step explanation: type it into the calculator on symbolab. it will tell you how to solve and give you the answer.

brainliest?

5 0
3 years ago
PLEASE HELP!! 30 POINTS
AveGali [126]
The answer is b if you add 3 plus -5 that would have given you negative -2
3 0
3 years ago
An artist is creating a large conical sculpture for a park. The cone has a height of 16 m of and a diameter of 25 m. Find the vo
alexdok [17]

Answer:

The answer is B.

Step-by-step explanation:

A=3.14 x 12.5>2

A= 3.14 x 156.25 =490-.625

A= 490.625 x 16m

A= 7, 850 m3

7 0
3 years ago
To burn 1 molecule of c7h16 to form co2 and h2o (complete combustion), how many molecules of o2 are required?
Irina18 [472]

The complete balanced chemical reaction is:

<span>C7H16  +  3O2  -->  7CO2  +  8H2O</span>

 

So 3 moles of oxygen O2 is required for every 1 mole of C7H16. In the same manner, 3 molecules of O2 is required for every 1 molecule of C7H16.

 

Answer:

<span>3 molecules O2 </span>

5 0
3 years ago
Find the area of the region under the graph of f on [a, b].<br> f(x) = x2 − 8x + 17; [−1, 2]
Harman [31]

Answer:

The area is 42 area units.

Step-by-step explanation:

The area of a function f(x) on an interval [a,b] is given by:

A = \int\limits^a_b {f(x)} \, dx

Applying to this question:

A = \int\limits^-1_2 {x^2 - 8x + 17} \, dx

Then

F(x) = \frac{x^{3}}{3} - 4x^{2} + 17x

A = F(2) - F(-1)

F(2) = frac{2^{3}}{3} - 4*2^{2} + 17*2 = \frac{8}{3} + 18 = \frac{8 + 3*18}{3} = \frac{62}[3}

F(-1) = frac{(-1)^{3}}{3} - 4*(-1)^{2} + 17*(-1) = -\frac{1}{3} - 21 = \frac{-1 - 21*3}{3} = -\frac{64}[3}

A = F(2) - F(-1) = \frac{62}[3} - (-\frac{64}[3}) = \frac{62+64}{3} = 42

The area is 42 area units.

5 0
3 years ago
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