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
iren2701 [21]
1 year ago
7

In parallelogram ABCD , BE=7x−2 and ED=x2−10 .

Mathematics
1 answer:
Stells [14]1 year ago
5 0

I'm assuming that the diagonals intersect at E. Since diagonals of a parallelogram bisect each other, BE=ED.

  • 7x-2=x²-10
  • x²-7x-8=0
  • (x-8)(x+1)=0
  • x = -1, 8

As distance must be positive, we reject the negative case, so x=8.

Thus, BE=ED=54.

You might be interested in
Marley spins a spinner and Rose a1-6 number to the spinner has 5 equal parts numeral number 1- 5 what is the probability she wil
Taya2010 [7]
2/5 i think probably

6 0
3 years ago
The ratio of susan's money to isabella's money is 2:11. if susan $12, how much money does isbella have?
valentina_108 [34]
If Susan had 2$ and got to 12$ we need to find what multiplied by 2 = 12. So, 12/2=6
If 6x2=12 then 11x6=66
66$
7 0
3 years ago
Trigonometry pile up. Anyone mind helping me out with this one?
S_A_V [24]
cos34^o=\frac{8}{a};\ cos34^o\approx0.829\\\\\frac{8}{a}=0.829\to a\approx9.65\\\\9.65-2.5+3.6=10.75\\\\cos11^o=\frac{b}{10.75};\ cos11^o\approx0.981\\\\\frac{b}{10.75}=0.981\to b\approx10.55\\\\10.55-2.1+2.9=11.35\\\\c^2+3.8^2=11.35^2\\\\c^2=11.35^2-3.8^2\\\\c\approx10.69

10.69-3.2=7.49\\\\tan42^o=\frac{d}{7.49};\ tan42^o\approx0.9\\\\\frac{d}{7.49}=0.9\to d\approx6.74\\\\sin37^o=\frac{6.74}{e};\ sin37^o\approx0.602\\\\\frac{6.74}{e}=0.602\to e\approx11.2\\\\11.2+4.3=15.5\\\\sin53^o=\frac{f}{15.5};\ sin53^o\approx0.8\\\\\frac{f}{15.5}=0.8\to f\approx12.4

12.4-2.2=10.2\\\\g^2=10.2^2+1.7^2\to g\approx10.34\\\\cos21^o=\frac{10.34}{h};\ cos21^o\approx0.934\\\\\frac{10.34}{h}=0.934\to h=11.07\\\\11.07+1.7=12.77\\\\sin71^o=\frac{x}{12.77};\ sin71^o\approx0.946\\\\\frac{x}{12.77}=0.946\to x\approx12.1\ (cm)\leftarrow Answer

4 0
3 years ago
Enter an equation that can be used to solve this problem, where x represents the number of hours that Roberto had been traveling
nalin [4]
45mph x35 mph = 1 hour
6 0
3 years ago
Which properties would you use to simplify the following expression? log (17x3)
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

Did you mean log (17*3)?  If so, your log (17x3) becomes log 17 + log 3.

Did you mean  log 17^3?  If so, log 17^3 = 3 log 17.

Did you mean log 17*x*3?  If so, this equals log 17 + log x + log 3

8 0
3 years ago
Other questions:
  • Find the minimum and maximum possible areas of a rectangle measuring 6 km by 11 km.
    5·1 answer
  • Miguel wants to use coordinate geometry to prove that the opposite sides of a rectangle are congruent. He places parallelogram A
    9·1 answer
  • It is known that 4 <br> PLS HELP
    5·2 answers
  • Help as soon as possible pleaseee
    12·2 answers
  • Using FOIL method. Multiply the terms. (X^2 -7)(x^2 -4)
    14·1 answer
  • The sum of two consecutive, odd whole numbers is 205. What are the two numbers?
    10·2 answers
  • The solution for the system equations 8x-6y=-32 and -8x+5y=36
    5·1 answer
  • Please help me if you can. please show how you got the answer.
    8·1 answer
  • I need help asap plsss
    15·2 answers
  • 2x+3y=15<br> X+y=6<br> Simultaneously equations
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!