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Svetach [21]
3 years ago
8

Help Please!!!!!!!!!!!

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
8 0
What is the question?
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For f(x) =1/x^2-3x<br>, substitute 3 for x in the function to solve for f(3)​
lys-0071 [83]

Step-by-step explanation:

F(x) = 1/9 - 9

= (1-81)/9

=-80/9

...............................

Plzz mark it as a brilliant answer

6 0
3 years ago
Help please =]<br><br> Solve system of equations using any method 2x-6y=8 and 2x-6y=3
dusya [7]
Let z be any number (like x would be)

if we set z equal to 2x-6y, then we get z = 2x-6y

The system 

2x-6y = 8
2x-6 = 3

turns into this new system

z = 8
z = 3

but z is a single number. It can't be both 8 and 3 at the same time. So there are no solutions
6 0
3 years ago
Read 2 more answers
The base area of a prism is 140 square feet. Its height is 6 feet. What is the volume of the prism? A. 280 ft3 B. 840 ft3 C. 420
MakcuM [25]
You already have the base area, so to work out the volume, you just multiply 140 by 6.

Therefore, the answer is B. 840 ft³ :) 
7 0
3 years ago
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How many three-digit positive integers <img src="https://tex.z-dn.net/?f=x" id="TexFormula1" title="x" alt="x" align="absmiddle"
Anastaziya [24]

Answer:

  40

Step-by-step explanation:

Any solution x will mod 23 will also have x+23n as a solution, for some integer n. Since 900/23 = 39 3/23, we know there are 39 or 40 three-digit integers of this form.

As it happens, 100 is the smallest 3-digit solution. So, there are 40 three-digit numbers that are of the form 100 +23n, hence 40 solutions to the equation.

_____

The equation reduces, mod 23, to ...

  10x = 11

Its solutions are x = 23n +8.

3 0
3 years ago
3\10 x 2\3<br><br> A.5\30<br><br><br> B.6\13<br><br><br> C.1\5<br><br><br> D.5\13
kow [346]
3/10 times 2/3 3 times 2 is 5 and 10 times 3 is 30 5/30 a
3 0
3 years ago
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