1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valkas [14]
3 years ago
15

(y+6)^2-(y-2)^2 I got 16y+26 but it is wrong?

Mathematics
1 answer:
Gemiola [76]3 years ago
5 0

Answer:

16y + 32

Step-by-step explanation:

Expand each term.

(y+6)² - (y-2)²

= (y+6)(y+6) - (y-2)(y-2)

= y² + 12y + 36 - (y² - 4y + 4)

Subtract the second group by changing each term's signs

= y² + 12y + 36 - y² + 4y - 4

Collect like terms

= 16y + 32

You might be interested in
What is the coefficient and the constant in 4+x=15?
Dmitriy789 [7]
Problem: 4+x=15
- Subtract 4 from both sides
4+x-4=15-4
- Refine
x = 11
7 0
3 years ago
The vertex angle of an isosceles triangle measures 42°. A base angle in the triangle has a measure given by (2x + 3)°. What is t
larisa [96]

An isosceles triangle is one in which 2 angles have similar measure while the other one is different. In this case, the 2 vertex angles have a measure of 42 degrees, therefore the third angle which is equal to (2x + 3) is:

(2x + 3) + 42 + 42 = 180

2x + 3 = 96

<span>x = 46.5°</span>

5 1
3 years ago
Read 2 more answers
Can someone help me solve multiple step equations? For example (7t - 2) - (-3t + 1) = -3(1 - 3t)
artcher [175]

Answer:

t = 0

Step-by-step explanation:

(7t - 2) - (-3t + 1) = -3(1 - 3t)

because you can not do anything inside the parantheses, you distribute. there aren't any numbers on the left side of the parantheses on the left side of the equation so we just imagine the number 1. on the right side of the equation, just distribute normally

[ 1(7t - 2) -1(-3t + 1) = -3(1 - 3t) ]

will be

7t - 2 + 3t - 1 = -3 + 9t

add like terms

10t - 3 = -3 + 9t

subtract 9t from both sides

t - 3 = -3

add 3 to both sides

t = 0

3 0
3 years ago
5x + 8 − 3x = −10<br><br> x = −9<br> x = −1<br> x = 1<br> x = 9
zvonat [6]

Answer:

-9

Step-by-step explanation:

7 0
3 years ago
Graph 24 &gt; - 3r 2 - 9
coldgirl [10]

Answer:

Solve for  r

− √ 11  <  r  <  √ 11

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What is (5 7/8 minus 6 3/4) minus 2 1/4 ? Please give me the correct answer and stepy by step instructions.
    15·1 answer
  • Which equation can be used to find the measure of angle LJK?
    8·1 answer
  • 5x(3x+2)-4(2x-1)<br><br><br><br> Yea i needd help
    10·1 answer
  • The ages of three siblings combined is 27. The oldest is twice the age of the youngest. The middle child s three years older tha
    7·2 answers
  • How do you find x and y in a word problem
    9·1 answer
  • Pls help lol this is so confusing will give brainlest
    10·1 answer
  • Please help me! I will give you Brainlist if you get it right!​
    11·1 answer
  • What is the volume of the rectangular prism?
    6·1 answer
  • Help me Please!! <br><br> Choose All Answers that describe the polygon ABCD if…
    5·1 answer
  • 50 pts please help asap!! Which expression In factored form is equivalent to this expression?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!