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
Zepler [3.9K]
3 years ago
15

The width of a rectangular window is 2 feet more than its height. If the area is 35 square feet, what is the height?

Mathematics
1 answer:
storchak [24]3 years ago
6 0
h-height\\h+2-width\\35 ft^2-Area\\\\Area=h(h+2)\\\\h(h+2)=35\\h^2+2h-35=0\\\\a=1;\ b=2;\ c=-35\\\\\Delta=b^2-4ac;\ if\ \Delta > 0\ then\ h_1=\frac{-b-\sqrt\Delta}{2a}\ and\ h_2=\frac{-b+\sqrt\Delta}{2a}\\\\\Delta=2^2-4\cdot1\cdot(-35)=4+140=144;\ \sqrt\Delta=\sqrt{144}=12\\\\h_1=\frac{-2-12}{2\cdot1}=\frac{-14}{2}=-7 < 0;\ h_2=\frac{-2+12}{2\cdot1}=\frac{10}{2}=5\\\\Answer:Height\ is\ 5\ ft.
You might be interested in
A company that makes​ hair-care products had 4,000 people try a new shampoo. Of the 4,000 ​people, 28 had a mild allergic reacti
lyudmila [28]

Answer:

0.007%

Step-by-step explanation:

4000/28=0.007%

7 0
3 years ago
Use completing the square to solve this quadratic equation. Check all that apply. X^2-10x+25=2
umka21 [38]

Answer:

I'm Not Sure Dreamer?!

Step-by-step explanation:

7 0
3 years ago
Use mental math to find which has a greater product 5×50or 5×500
Dennis_Churaev [7]
I think the answer is 5×500
7 0
3 years ago
Read 2 more answers
Please helpppppppppppppppp
Zina [86]

Answer:

29520728184915396206153835295

3 0
3 years ago
Can someone help me with these both
Anna [14]
Hello,
so all you have to do is match the abbreviations to the triangles. The abbreviations stand for what is the SAME in both triangles, denoted by similar markings on equal sides and angles.

Abbreviations:
SSS = Side-Side-Side
SAS = Side-Angle-Side
ASA = Angle-Side-Angle
AAS = Angle-Angle-Side
HL = Hypotenuse-Leg

* Note - the angle side angle must go around the triangle in that order. ASA has the side BETWEEN the congruent angles.. SSA does NOT work.

(9.) ASA
(10.) AAS
(11.) SSS
(12.) No way to tell if congruent. (only 3 angles no side)
(13.) ASA
(14.) SAS
(15.) HL

7 0
3 years ago
Other questions:
  • Eric has 34 toy cars . He gives 4 cars to his little brother . Then Eric puts an equal number of his you cars in 5 bags . How ma
    12·2 answers
  • Please help me with question 8 and part 1
    11·1 answer
  • Hows your day so far?
    9·1 answer
  • There are 30 students on the debate team and 20 students on the math team. Ten students are on both the math team and debate tea
    12·1 answer
  • In the following diagram line C intersects line D. Using complete sentences, classify the relationship between &lt;7 and &lt;8 c
    9·1 answer
  • the dance teacher at a school bought tickets to a play. the teacher had a budget of 5460 for the tickets. each ticket cost 28. h
    7·1 answer
  • a rectangular swimming pool is 24 meters by 10 meters. jane said she could swim diagonally from one corner to another without ta
    8·1 answer
  • HELP PLEASE!<br> for p(x)=-2x+5 determine:<br> p(5)<br> p(0)<br> p(-1/2)
    14·1 answer
  • Use the distributive property to write a solution.<br> 3(x+4) =
    6·1 answer
  • Can someone help plsssss !!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!