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
KIM [24]
2 years ago
7

Find the measure of angle A. 71° x+49 +72

Mathematics
1 answer:
slega [8]2 years ago
5 0

Answer: 66 degrees

Step-by-step explanation:

Sum of the angle measures is 180, so:

71 + x + 49 + x + 72 = 180

2x + 192 = 180

2x = -12

x = -6

Meaning the measure of angle A = -6 + 72 = 66 deg.

You might be interested in
5^3=? Can someone help me with this I am stuck lol
worty [1.4K]

Answer: 125

Step-by-step explanation: just multiply 5 x 5 x 5

8 0
3 years ago
Read 2 more answers
Berto has $12 to put gas in his car. If gas costs $3.75 per gallon, which ordered pair relating number of gallons of
ElenaW [278]

Answer:This is approximately 3.2 gallons. So the coordinate on this line would be (3.2, 12).

Step-by-step explanation: If gas costs $3.75 per gallon and Berto has $12, then he can purchase 12/3.75 gallons. This is approximately 3.2 gallons. So the coordinate on this line would be (3.2, 12).

4 0
3 years ago
Read 2 more answers
Can some plz help me!
Ymorist [56]

Answer:

a=9+6

p=-30+20

z=15+(-12)

x=-10+(-7)

Step-by-step explanation:

5 0
3 years ago
Indicate the equation of the given line in standard form. The line through (2, -1) and parallel to a line with slope of 3/4
Ket [755]
Well, for a line with a slope of 3/4, any other parallel line to it, will also have the same slope of 3/4

so if the line through (2, -1) is parallel to it, it has a slope of 3/4 as well

\bf \begin{array}{lllll}
&x_1&y_1\\
%   (a,b)
&({{ 2}}\quad ,&{{ -1}})\quad 

\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{3}{4}
\\\\\\
% point-slope intercept
y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad 
\begin{array}{llll}
\textit{plug in the values for }
\begin{cases}
y_1=-1\\
x_1=2\\
m=\frac{3}{4}
\end{cases}\\
\textit{and move everything}\\
\textit{to the left-hand-side}
\end{array}\\

\left. \qquad   \right. \uparrow\\
\textit{point-slope form}
7 0
3 years ago
jenna's rectangular garden borders a wall. she buys 80 ft of fencing. what are the dimensions of the garden that will maximize i
FrozenT [24]

Answer:

The  dimensions are x =20 and y=20 of the garden that will maximize its area is 400

Step-by-step explanation:

Step 1:-

let 'x' be the length  and the 'y' be the width of the rectangle

given Jenna's buys 80ft of fencing of rectangle so the perimeter of the rectangle is    2(x +y) = 80

                         x + y =40

                               y = 40 -x

now the area of the rectangle A = length X width

                                                  A = x y

substitute 'y' value in above A = x (40 - x)

                                              A = 40 x - x^2 .....(1)

<u>Step :2</u>

now differentiating equation (1) with respective to 'x'

                                      \frac{dA}{dx} = 40 -2x     ........(2)

<u>Find the dimensions</u>

<u></u>\frac{dA}{dx} = 0<u></u>

40 - 2x =0

40 = 2x

x = 20

and y = 40 - x = 40 -20 =20

The dimensions are x =20 and y=20

length = 20 and breadth = 20

<u>Step 3</u>:-

we have to find maximum area

Again differentiating equation (2) with respective to 'x' we get

\frac{d^2A}{dx^2} = -2

Now the maximum area A =  x y at x =20 and y=20

                                        A = 20 X 20 = 400

                                         

<u>Conclusion</u>:-

The  dimensions are x =20 and y=20 of the garden that will maximize its area is 400

<u>verification</u>:-

The perimeter = 2(x +y) =80

                           2(20 +20) =80

                              2(40) =80

                              80 =80

8 0
3 years ago
Other questions:
  • Can someone please help with this?
    10·1 answer
  • Need help with 23. please
    10·1 answer
  • When is the sum of two negative mixed numbers an integer
    12·1 answer
  • Please help lol it’s my hwwwwwwwww
    11·1 answer
  • the first sail has one side of length 9 feet and another length 6 feet. Determine the range of possible lengths of the third sid
    6·2 answers
  • How can you evaluate this expression using the distributive property?<br> 5×(7+6)
    8·2 answers
  • Triangle ABC has sides of measure a = 4 cm, b = 9 cm, c = 7 cm.
    5·1 answer
  • john is n years old. kim is three years younger than john. vanessa is half kim's age. write an expression for each persons age.
    11·1 answer
  • Can you answer this for me pls i need it ASAP​
    13·1 answer
  • -4y + 3x - 2x - 5y - 4<br> Combining like terms
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!