Complete the proof using indirect reasoning. Prove: If x > 3 then 2x + 3 > 9

Mathematics

1 answer:

weqwewe [10]3 years ago

4 0

When x > 2, 2x + 3 > 7 and when x = 2, 2x + 3 = 7. ... problem, assume that Christina's average points per game was greater than or equal to 3. Use . Indirect Proof: ... x is an odd integer must be true. Write an indirect proof of each statement. 9.

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Anna is making 11 necklaces using 35 beads for each. How many beads (B) are needed to make all of the necklaces?

ss7ja [257]

Answer: c. b/35 =11

Step-by-step explanation:

the total beads is over beads of necklace and there’s 11 necklaces needed to make

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uysha [10]

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What’s the value of x?

belka [17]

In math, value is a number signifying the result of a calculation or function. So, in the example above, you could tell your teacher that the value of 5 x 6 is 30 or the value of x + y if x = 6 and y = 3 is 9. Value can also refer to a variable or constant. also It is called a "variable" or sometimes an "unknown".

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3 years ago

given a geomatric progression 2,6,18,54... find the smallest value of n such that the nth term is greater than 100000

stiks02 [169]

Answer:

hello,

Step-by-step explanation:

$u_1=2=2*3^0\\u_2=6=2*3^1\\u_3=18=2*3^2\\u_4=54=2*3^3\\\\....\\u_n=2*3^{n-1}\geq 100000\\\\3^{n-1}\geq 50000\\\\(n-1)*ln(3)\geq ln(50000)\\\\n-1\geq 9,848586...\\\\n\geq 10.848586....\\\\\boxed{n=11}\\$

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3 years ago

Factorise <img src="https://tex.z-dn.net/?f=2t%5E2%2B5t%2B2" id="TexFormula1" title="2t^2+5t+2" alt="2t^2+5t+2" align="absmiddle

blondinia [14]

Answer: $\displaystyle\ \large \boldsymbol{ 2t^2+5t+2= {(2t+1) (t+2)}}$

Step-by-step explanation:

$\displaystyle\ \large \boldsymbol{} 2t^2+5t+2=0 \\\\2t^2+\underbrace{4t+t}_{5t}+2=0 \\\\ (2t^2+4t)+(t+2)=0 \\\\ 2t(\underline{t+2})+(\underline{t+2})=0 \\\\ \boxed{(2t+1) (t+2)=0 }$

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3 years ago