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
Lostsunrise [7]
3 years ago
12

Help help help help math math math

Mathematics
1 answer:
olasank [31]3 years ago
5 0

Answer:

27 in²

Step-by-step explanation:

The area (A) is calculated as

A = πr² ( r is the radius ) , then

A = π × 3² = 3 × 9 = 27 in²

You might be interested in
A given line has the equation 10x + 2y = −2.
worty [1.4K]

The equation is \boxed{ \ y = - 5x + 12 \ or \ y = 12 - 5x} \ }

<h3>Further explanation </h3>

This case asking the end result in the form of a slope-intercept.

<u>Step-1: find out the gradient. </u>

10x + 2y = -2

We isolate the y variable on the left side. Subtract both sides by 10x, we get:

2y = - 10x - 2  

Divide both sides by two

y = -5x -1

The slope-intercept form is \boxed{ \ y = mx + c \ }, with the coefficient m as a gradient. Therefore, the gradient is m = -5.

If you want a shortcut to find a gradient from the standard form, implement this:  

\boxed{ \ ax + by = k \rightarrow m = - \frac{a}{b} \ }

10x + 2y = −2 ⇒ a = 10, b = 2

\boxed{m = - \frac{10}{2} \rightarrow m = -5}

<u>Step-2:</u> the conditions of the two parallel lines

The gradient of parallel lines is the same \boxed{ \ m_1 = m_2 \ }. So \boxed{m_1 = m_2 = -5}.

<u>Final step:</u> figure out the equation, in slope-intercept form, of the parallel line to the given line and passes through the point (0, 12)

We use the point-slope form.

\boxed{ \ \boxed{ \ y - y_1 = m(x - x_1)} \ }

Given that

  • m = -5
  • (x₁, y₁) = (0, 12)  

y - 12 = - 5(x - 0)

y - 12 = - 5x

After adding both sides by 12, the results is \boxed{ \ y = - 5x + 12 \ or \ y = 12 - 5x} \ }

<u>Alternative steps </u>

Substitutes m = -5 and (0, 12) to slope-intercept form \boxed{ \ y = mx + c \ }

12 = -5(0) + c

Constant c is 12 then arrange the slope-intercept form.

Similar results as above, i.e. \boxed{ \ y = - 5x + 12 \ or \ y = 12 - 5x} \ }

<u>Note: </u>

\boxed{Standard \ form: ax + by = c, with \ a > 0}

\boxed{Point-slope \ form: y - y_1 = m(x - x_1)}

\boxed{Slope-intercept \ form: y = mx + k}

<h3>Learn more </h3>
  1. A similar problem brainly.com/question/10704388
  2. Investigate the relationship between two lines brainly.com/question/3238013
  3. Write the line equation from the graph brainly.com/question/2564656

Keywords: given line, the equation, slope-intercept form, standard form, point-slope, gradien, parallel, perpendicular, passes, through the point, constant

7 0
3 years ago
Read 2 more answers
I need help with this
DedPeter [7]

I remember some of this from 6th grade!
a.) the 7th graders have a smaller range compared to the 8th graders.
c.) 30 and 18 are the medians. Subtract them and you get 12.
Hope I could help partially
6 0
3 years ago
Can someone please help me with this?
Svet_ta [14]
Increasing: (-4,-4)
Decreasing: (4,-2)
3 0
3 years ago
5<br> The slope of EF is<br> Which segments are perpendicular to EF?<br> Select each correct answer.
Anvisha [2.4K]

Answer:

the first two answers are perpendicular

8 0
2 years ago
A group of friends wants to go to the amusement park. They have $469.75 to spend on parking and admission. Parking is $10.75, an
attashe74 [19]

Answer:

12

Step-by-step explanation:

469.75-10.75 =

459 ÷ 38.25 =

12

8 0
2 years ago
Other questions:
  • What is the length of a leg of an isosceles right triangle whose hypotenuse measures 6 inches? Let c represent the value of the
    5·2 answers
  • Truck driver drives for five hours at a constant speed of 55 mph. Write an equation that shows the total distance traveled (y) d
    6·1 answer
  • Can someone please help me
    6·1 answer
  • Wyatt is paying back a loan with a nominal interest rate of 13.62%. If the interest is compounded quarterly, how much greater is
    12·1 answer
  • What would be the angles for K, J, and L?
    5·2 answers
  • Plzz help i been asking this question for way too long
    11·1 answer
  • The line models the cost of renting a bike. It costs​ $2 per hour plus a​ $4 deposit. Write an equation in​ slope-intercept form
    9·1 answer
  • Х
    13·1 answer
  • Jordan made 8th blankets with 136 yard of material how many yards of material does she need to make 23 blanket​
    13·2 answers
  • Solve for n.<br> n/5 +0.6=2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!