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
ozzi
3 years ago
11

If a = -2 and y=1 then a²+2y²=?

Mathematics
1 answer:
Ugo [173]3 years ago
4 0
<span>a²+2y² = (-2)^2  + 2(1^2)
= 4 + 2
=6

answer: 6</span>
You might be interested in
Circle B has a center at point (0, 2) and a point W on the circle at (3, 3). Which equation represents a line that is tangent to
Solnce55 [7]

According to the given information, the equation represents a line that is tangent to the circle and goes through the point W is given by:

y = -x + 6.

<h3>What is the equation of the circle?</h3>

The equation of a circle of center (x_0,y_0) and radius r is given by:

(x - x_0)^2 + (y - y_0)^2 = r^2

In this problem, we have that the center is at point (0,2), hence:

x^2 + (y - 2)^2 = r^2

It goes through point (3,3), hence:

3^2 + (3 - 2)^2 = r^2

r^2 = 10

Hence, the equation is:

x^2 + (y - 2)^2 = 10

<h3>What is the equation of the tangent line at point W?</h3>

It is given by:

y - y(0) = \frac{dy}{dx}|_{W}(x - x(0))

Applying implicit differentiation, we have that:

2x + 2y\frac{dy}{dy} = 0

\frac{dy}{dx} = -\frac{x}{y}

Point W(3,3), hence:

(x_0, y_0) = (3,3)

\frac{dy}{dx} = -\frac{3}{3} = -1

Hence the equation is:

y - 3 = -(x - 3).

y = -x + 6.

More can be learned about the equation of a tangent line at brainly.com/question/8174665

5 0
2 years ago
Which variable is ordinal?​
Leviafan [203]

Answer:

Categorical variable

Step-by-step explanation:

An ordinal variable is a categorical variable for which the possible values are ordered. Please mark me as brainliest.

6 0
2 years ago
Please help me :////
Dahasolnce [82]

Answer:

34

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What’s the soccer field answer to 120 yards long and 369 so do we subtract or multiply or divide
balandron [24]

Answer:

it is 17 %5#5%×55!:5=5×555!:4÷55x5xx5x5x5x5x5x5 = 2000

8 0
2 years ago
Which expression is equivalent to
lisabon 2012 [21]

Answer:

i think the answer is, A...

8 0
2 years ago
Other questions:
  • What’s the nth term of 7,14,23,34,47,62,79
    9·1 answer
  • The amount of tax for each camera is $5.25 and the tax rate is 6%. Explain how the equation: (Original Cost)(Percent) = Tax Amou
    7·2 answers
  • Gayle starts to save at age 20 for an extended vacation around the world that she will take on her 45th birthday. She will contr
    6·2 answers
  • What is the quotient of -8(^6)/4x(^-3)
    11·1 answer
  • Find two linearly independent solutions to the d.e. y"(x)=0, and then find a solution to y"(x)=1 wiht y(0)=0 and y'(0)=0
    9·1 answer
  • The length of a rectangle is 4 meters more than the width of the rectangle. The perimeter of the rectangle is 40 meters. What ar
    15·1 answer
  • during the fall a pumpkin patch advertises four pumpkin for $11.oo which equation below respresents this proportional relationsh
    7·1 answer
  • Josh bought 2 pairs of jeans for $25.60 each and some shirts for $15.30 each. If he spent a total of $112.40,
    14·1 answer
  • Gabby mixes ½ tablespoon of paprika for every ¾ teaspoon of salt. Calculate a unit rate to represent the amount of paprika per 1
    12·1 answer
  • What are the two categories of fees?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!