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3 years ago

Divide 30 by half and add 12. What do you get?

Mathematics

2 answers:

svetoff [14.1K]3 years ago

8 0

Answer:

Step-by-step explanation:

30/(1/2) = 60

60+12 =72

topjm [15]3 years ago

6 0

Answer:

Step-by-step explanation:

30/2=15 +12=27

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A sequence {an} is generated by the recursive formulas a1 = 5 and an = an-1 + 5(-1)n. Find, a343, the 343rd term of the sequence

Olenka [21]

$a_n=a_{n-1}+5(-1)^n\\\\if\ n\ is\ even\ then:a_n=a_{n-1}+5(-1)^n=a_{n-1}+5\\\\if\ n\ is\ odd\ then:a_n=a_{n-1}+5(-1)^n=a_{n-1}-5\\\\a_1=5\\a_2=5+5=10\\a_3=10-5=5\\a_4=5+5=10\\a_5=10-5=5\\\vdots\\a_{343}=5\ \ \ \ (343\ is\ odd\ number)$

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3 years ago

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Answer for 4x²+12x+5

Marta_Voda [28]

If you factor it the answer would be (2x+1)(2x+5). Hope this helped.

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4 years ago

If (-1, y) lies on the graph of y=2^2x then y=

zubka84 [21]

Answer:

y is 1/4 when x is -1 if I did interpret your equation right. Please see that I did.

I believe the equation to be $y=2^{2x}$ . If you meant $y=2^2x$ , please let me know.

Thanks kindly.

Step-by-step explanation:

If (-1,y) lies on the graph of $y=2^{2x}$ , then by substitution we have:

$y=2^{2\cdot -1}$ .

We just need to simplify to determine y:

$y=2^{2 \cdot -1}$

Multiply the 2 and -1:

$y=2^{-2}$

Use reciprocal rule for exponents to get rid of the negative:

$y=\frac{1}{2^2}$

$2^2$ just means $2(2)$ :

$y=\frac{1}{2(2)}$

$y=\frac{1}{4}$ .

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3 years ago

Ou pick a card at random. Without putting the first card back, you pick a second card at random.

Arte-miy333 [17]

If you cards are only 5,6,7, then the probability of getting even, then even would be zero.

The directions say that the card is not replaced. Therefore, once you pick the 6, there would be no more even cards.

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3 years ago

NEED HELP ASAP

andreyandreev [35.5K]

Answer: 137.08 m tall

Step-by-step explanation:

100-77=23

596x0.23=137.08

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2 years ago

Read 2 more answers

Divide 30 by half and add 12. What do you get?​

Divide 30 by half and add 12. What do you get?