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3 years ago

Evaluate the expression 2.5 with an exponent of 2

1 answer:

6 0

The answer is 6.25

Explained: since 2.5 has an exponent of 2, you multiply 2.5 by itself, and get 6.25

2.5 x 2.5 = 6.25

Hope This Helps

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1 less than the square of a number.

natta225 [31]

3 is the only number which is one less than a square...

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3 years ago

Anyoneee pls I need help

nikklg [1K]

Answer:

Step-by-step explanation:

As in the first set of numbers

4,5,2 are successes.

but in the next set of numbers

5 is right before a fail.

but then straight passes after that

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3 years ago

Susie is visiting China from the U.S. One day she stopped by a market and found a stall selling tomatoes for 15.65 yuan per kilo

liq [111]

Answer:

1st blank is 0,14 dollars/1yuan, and 2nd blank is 1kg/2.2lb

Step-by-step explanation:

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4 years ago

PLEASE HELP 20 POINTS

disa [49]

Answer:

$a_n=3.a_{n-1}$

$a_1=6$

$a_n=6(3)^{n-1}$

Step-by-step explanation:

Recursive And Iterative Rules For Sequences

The recursive rules allow finding terms of a sequence as a function of the previous one. The iterative rules provide a formula to compute the n-th term without the need to compute the previous terms.

Our sequence goes like 6,18,54,162... It can be found that any term equals the previous one by 3

a) The recursive rule can be deducted from the above sentence

$a_n=3.a_{n-1}$

$a_1=6$

It's important to provide the first term where the rule will eventually stop

b) The iterative rule is found with the help of geometric sequences

$a_n=a_1r^{n-1}$

With $a_1=6$ and r=3

$a_n=6(3)^{n-1}$

5 0

3 years ago

A parallelogram has an area of x2+ 9x− 36.

Serhud [2]

Answer:

a) Length $x + 12$ , Width $x - 3$ , b) $x = 3$

Step-by-step explanation:

a) The expressions for the length and width of the parallelogram can be determined by factorizing the polynomial:

$A = x^{2} + 9\cdot x - 36$

$A = (x+12)\cdot (x-3)$

Length

$x + 12$

Width

$x - 3$

b) Since area is a positive variable, the set of solutions encompass all values of x such that area is zero o greater. Then, there are two interval where A is positive:

- When both binomials are negative.

$x \leq 3$ and $x \leq -12$

$x \leq -12$

- When both binomials are positive.

$x \geq 3$ and $x \geq -12$

$x \geq 3$

Since x is an integer, x must be positive and therefore the least possible value of x is:

$x = 3$

6 0

4 years ago