Determine the number of significant digits in the measurement of 0.00025 km

Answers

Answer 1

Answer: there are 2 significant digits in that number

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Please qwnser correctly! I will mark you Brainleist

Answers

Answer:

the answer is 484

Step-by-step explanation:

volume of the pyramid = (11×11×12) ÷3 =484

Answer:

the answer would be 385

Step-by-step explanation:

just listen to this because I did this last year.

11 by 11 is 121

11 by 12 is 132

you can multiply by two and get all 4 triangles done and the answer would be 385

The solution to 2 * 27 will be what kind of number?A. Prime
B. Odd
C. Perfect square
D. Even

Answers

Answer: Even

Step-by-step explanation:

The given product is $2*27$

When we solve the given product we get, $2*27=54$

Now, 54 is not a prime number since it has more than two factors such as 2 and 27.

[ ∵ A prime number is a whole number greater than 1 and it has only two factors which are 1 and itself. ]

It is even not odd since its last digit is an even number.

54 cannot be written as $n* n$ , for any natural number n, therefore, it is not a perfect square.

Answer: Hello mate!

Let's analyze the options:

A) prime, a prime number is a number that only can be divided by 1 and itself, if you look at the number 2*27, you can see that this number can be divided by 2 and 27, then this number is not prime.

B) An odd number has the form m= 2*n + 1 where n is an integer number.

in this case, we have 2*27, so this number is not odd.

C) perfect square, 2*27 = 54, we know that 7*7 = 49, and 8*8 = 65

so 2*27 lays in between two consecutive perfect squares, so 2*27 can not be a perfect square.

D) an even number has the form 2*n, where n is an integer.

n = 27 is this case, so 2*27 = 54 is an even number.

How to factor out xsquared+6x-27

Answers

x^2 + 6x - 27
(x - 3)(x + 9)

The answer is: (x - 3)(x + 9).

Answer:

${x}^(2) + 6x - 27 \n {x}^(2) - 3x + 9x - 27 \n x(x - 3) + 9(x - 3) \n (x - 3)(x + 9)$

Find the nth term, a n, of the given arithmetic sequence. a^1 = 75, d = –8, n = 11a. 742
c. 155
b. –13
d. –5

Answers

an = a1+d*(n-1)
a11 = 75-8*(11-1) = -5

Assign two variables for each problem, and write the equations. Solve.In five years, Kate will be twice as old as Joey. Right now, Kate is 11 years older than Joey. How old is Joey right now?

I need two variables and two equations. And please solve it.

Answers

lets make k equal to Kate's age and j equal to Joey's age. If in 5 years Kate will be twice as old as Joe, you can write the equation k+5=2(j+5) and then simplify it to make it easier to work with.
k+5=2(j+5)
k+5=2j+10
k+5-2j=10
k-2j=5
since we know that right know Kate is 11 years older than Joey, you can write the equation k+j=11. Since you know have two equations with with the same variable, you can make a system of equations as fallows:
k-2j=5
k+j=11

Since you need to figure out how old Joey is, you need to somehow get k to cancel out. The easiest thing to do for this problem is to is multiply the top equation by -1 to get:
-k+2j=-5 (you have to add the bottom equation to the top equation)
k+j=11 (-k+k=0, 2j+j=3j, and -5+11=6)
Since k got canceled out, you are left with the equation 3j=6 which means j=2.
Therefore, Joey's current age is 2.

I hope this helps.

Population of a city is 36000 in 2005 by 2010 it has grown to 43800. If the city has grown linearly since 2005 and grows at the same rate what will the population be in 2015