All categories

3 years ago

A pattern follows the rule "Starting with one, every consecutive line has a number one more than twice the previous line".

Mathematics

1 answer:

gtnhenbr [62]3 years ago

4 0

Answer:

The fourth line will have 15 marbles

Step-by-step explanation:

The third line has 7 marbles. So, you double that and add one in order to find the number of marbles in the fourth line.

7*2=14

14+1=15

You might be interested in

21/x=84/120 solve the proportion

Nimfa-mama [501]

Answer: X= 30

Step-by-step explanation:

Hope that helped :)

3 0

3 years ago

The equation y = 155x + 110, 419 approximates the total cost in dollars, of raising a child in the United States from birth to 1

faust18 [17]

Answer: Third option.

Step-by-step explanation:

According to the information given in the exercise, you can find an approximation of the the total cost in dollars of raising a child in the United States ( from birth to 17 years) given a household's annual income, with the following equation:

$y = 1.55x + 110, 419$

Where "x" represents the household's annual income in dollars.

Therefore, if the annual income is $62,500; you can identify that:

$x=62 ,500$

Then, in order to calculat the approximated cost to raise a child in a household with that annual income given in the exercise, you need to substitute that value of "x" into the equation and then you must evaluate in order to find the value of "y".

Through this procedure you get the following result:

$y = 1.55(62 ,500) + 110, 419\\\\y=96,875+ 110, 419\\\\y=207,294$

6 0

3 years ago

Geometry question !!! <br> Help pleaseeeeeee<br><br> What is the length of AC

Crank

Answer:

AC=7

Step-by-step explanation:

x+5=3x+3

-4x=-2

x=2

Substitute x in.

2+5=7

Hope I helped! Sorry if incorrect.

~Mschmindy

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

5 0

3 years ago

What are the real zeros of the function g(x)=x^3+2x^2-x-2

Gre4nikov [31]

$g(x)=x^3+2x^2-x-2\\\\\text{The zeros:}\\\\g(x)=0\to x^3+2x^2-x-2=0\\\\x^2(x+2)-1(x+2)=0\\\\(x+2)(x^2-1)=0\iff x+2=0\ \vee\ x^2-1=0\\\\x+2=0\ \ \ |-2\\x=-2\\\\x^2-1=0\ \ \ |+1\\x^2=1\to x=\pm\sqrt{1}\to x=-1\ \vee\ x=1\\\\\text{Answer:}\ x=-2\ or\ x=-1\ or\ x=1$

4 0

3 years ago

Raina must choose a number between 55 and 101 that is a multiple of 2,3 and 9. Write all the numbers that she could choose. If t

ziro4ka [17]

Answer:

72,90

Step-by-step explanation:

Since 9 is the biggest number so list multiples of 9 between 55- 101 range.

Which are 63, 72, 81, 90, 99. Any number that is a multiple of 9 is a multiple of 3 because 3x 3 = 9. 9 is a multiple of 3.

Any even number is a multiple of 2.

Only 72 and 90 are even numbers.

So 72 and 90 are numbers divisible by 2, 3, 9.

6 0

3 years ago