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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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Do you know if not don't answer What is 3x+1/5y=7

Mrac [35]

You will have to use trial and error in order to find the values for x and y.
Just keep plugging values until you get 7.

I found x is equal to 2 and y is equal to 5.

3(2) + (1/5)5 = 7
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3 years ago

Find the measure of angle ABC. A. 124 B. 97 C. 56 D. 51

Airida [17]

Answer: Last Option

Step-by-step explanation:

By definition the sum of the internal angles of a triangle must always be equal to 180 °.

This means that:

$32 + (2x-15) + (x-5)=180$

Now we solve the equation for the variable x

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We subtract 12 in both barks of the equation

$3x +12-12=180-12$

$3x=168$

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$x=\frac{168}{3}$

$x=56$

Finally the measure of angle ABC is: (56-5)° = 51°

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3 years ago

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Natasha2012 [34]

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vazorg [7]

Answer:

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General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Midpoint Formula: $\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

Step 1: Define

Point (2, 9)

Point (8, 1)

Step 2: Identify

(2, 9) → x₁ = 2, y₁ = 9

(8, 1) → x₂ = 8, y₂ = 1

Step 3: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute in points [Midpoint Formula]: $\displaystyle (\frac{2+8}{2},\frac{9+1}{2})$
[Fractions] Add: $\displaystyle (\frac{10}{2},\frac{10}{2})$
[Fractions] Divide: $\displaystyle (5,5)$

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3 years ago