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
lakkis [162]
3 years ago
7

PLEASE HELP ASAP! The interior angles of a triangle have measures 100°,(4y+25)degrees and (3y+20) degrees. What is the value of

y?
Mathematics
1 answer:
erastova [34]3 years ago
7 0

100°+(4y+25)+(3y+20)=180°

100+4y+25+3y+20=180

7y+145=180

7y=35

y=5

100°; 45°; 35°

You might be interested in
3(b+2) divided by 2 equal 4b-10 divided dy 4
Gwar [14]

Answer:

b=-11

Step-by-step explanation:

I assume you are looking to solve for the value of b.

<u>3(b+2)</u> x <u>2</u>= <u>4b-10</u>

    2       2      4

<u>6(b+2)</u> = <u>4b-10</u>

   4            4

x 4             x4

6(b+2) = 4b-10

6b+12=4b-10

-4b       -4b

2b+12=-10

     -12  -12

<u>2b</u>=<u>-22</u>

2      2

b=-11


3 0
3 years ago
Please hawlp pls.......
Amiraneli [1.4K]

Answer:

(a) A(x)=160x-2x^{2}

(b) x=40\textrm{ m}

(c) Maximum area=3200 square meters

Step-by-step explanation:

(a)

Given:

Total length for fencing = 160 m

Width of the rectangle = x m.

Let the other length of the rectangle be y m.

Then, from the figure,

x+y+x=160\\2x+y=160\\y=160-2x

Now, area of a rectangle is equal to the product of its length and width.

So, area is, A(x)=xy=x(160-2x)=160x-2x^{2}

(b)

Given:

A(x)=160x-2x^{2}

For maximum area, derivative of area with respect to x must be 0.

So, \frac{dA}{dx}=0\\\frac{d}{dx}(160x-2x^{2})=0\\160-4x=0\\4x=160\\x=\frac{160}{4}=40\textrm{ m}

Therefore, for maximum area, x=40\textrm{ m}.

(c)

Given:

A(x)=160x-2x^{2}

Maximum area occurs at x=40. Plug in 40 for x in A(x) expression. This gives,

Maximum area is,

A(x=40)=160(40)-2(40)^{2}\\A(x=40)=6400-2\times 1600\\A(x=40)=6400-3200=3200\textrm{ }m^{2}

Therefore, maximum area is 3200 square meters.

3 0
4 years ago
You work in the state of Nebraska where the sales tax is 5 1 2 %. What would be the tax rate expressed as a decimal?
Igoryamba
512% as a decimal would be 5.12
7 0
3 years ago
Which table shows a proportional relationship between weight and price?
ch4aika [34]

Answer:

bottom right one

Step-by-step explanation:

4 0
3 years ago
What is the missing side of the triangle below? A= 12 cm b=9cm
Elenna [48]
15cm if it’s a right triangle
8 0
4 years ago
Read 2 more answers
Other questions:
  • Zula has a conical bird feeder with a volume of 64.3 cubic centimeters and a height of 7 centimeters. Which equation can be used
    12·2 answers
  • Whats the greatest common factor of 20 and 40
    7·2 answers
  • Twice the sum of 2.5, 4.7, and a number c
    11·1 answer
  • It is known that 15.6≤P≤15.8. Find the possible values of the side of a square if P is the perimeter of the square.
    14·2 answers
  • Let T:V→W be a linear transformation from a vector space V into a vector space W. Prove that the range of T is a subspace of W.
    7·1 answer
  • Mike has a large tropical fish collection.He gives 2/3 of his fish to a local high school. Then gives 2/5 of the remaining fish
    6·1 answer
  • A shipping box has the dimensions shown. What is the volume of the box in cubic yards?
    11·2 answers
  • Pls help pls help i will award brainliest.
    13·2 answers
  • 9. What conversion factor can you use to convert miles to inches? Explain how you found it.​
    8·1 answer
  • I need help on this question and please explain what I got wrong so I understand and what I'm supposed to do.​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!