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3 years ago

PLEASE HELP ME!!!!!! I NEED HELP REALLY FAST!! I WILL BE MARKING BRAINLIEST!!!!!!

Mathematics

2 answers:

sashaice [31]3 years ago

6 0

Answer:

6,common difference

nth term== 6n-1

Step-by-step explanation:

an=a1+(n-1)d -formula to find nth term

to find common difference subtract 11-5=6,or 17-11=6

now substitute an=nth term

a1=1st term in sequence

d=common difference

an=6(+n-1)+5

distribute

an=6n-6+5

an=6n-1

hope this helps

viva [34]3 years ago

4 0

Common difference is +6 and I think nth term is 5 (pretty sure it's always the first term) and the second one im not so sure about I'm sorry.

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scoundrel [369]

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3 years ago

Find two positive numbers so that twice their sum equals their product and one number is 10 times the other number. Enter the sm

Softa [21]

Answer:

Step-by-step explanation:

We'll call the 2 numbers x and y. Starting with the last part of that first sentence "one number is 10 times the other number" can be written, in algebraic form:

y = 10x

Now on to the first statement about the numbers: "twice their sum" is 2(x + y) and "equals their product" is = xy. Putting that all together:

2(x + y) = xy and we know that y = 10x so

2(x + 10x) = x(10x) and

$2(11x)=10x^2$ and

$10x^2-22x=0$ and

x(10x - 22) = 0 so

x = 0 or 10x - 22 = 0 which makes

x equal to $\frac{22}{10}=2.2$

So x = 2.2 and y = 22.

7 0

2 years ago

Three ballet dancers are positioned on stage. If Lauren is 6 meters straight behind Alexa and

HACTEHA [7]

Answer:

d = 10 m

Step-by-step explanation:

Given that,

tLauren is 6 meters straight behind Alexa and 8 meters directly left of Danielle. We need to find the distance between Alexa and Danielle. It can be calculated using Pythagoras theorem such that,

$d=\sqrt{8^2+6^2} \\\\d=10\ m$