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
umka21 [38]
2 years ago
13

in rectangle ABCD, BD and AC are diagonals and intersect at E. If BD = 84 units and AE = 6y, what is the value of y

Mathematics
1 answer:
goldfiish [28.3K]2 years ago
3 0

Answer:

y = 7

Step-by-step explanation:

The diagonals of a rectangle are congruent and bisect each other, then

AC = BD , that is

AE + EC = BD [ AE = EC = 6y ]

6y + 6y = 84

12y = 84 ( divide both sides by 12 )

y = 7

You might be interested in
Help with all please!
Elena L [17]
For 14, 15, and 16 you would move the decimal the number in the exponent to the left because the exponent is negative. For example 14 would be .00000030
3 0
4 years ago
F(x)=x²-x-1 What is the average rate of change of f over the interval -1 ≤ x ≤ 1?
Elena-2011 [213]

Answer: -1/2

Step-by-step explanation:

The average rate of change is \frac{f(b)-f(a)}{b-a}. Since a=-1 and b=1. We can plug them into the equation and solve.

\frac{[1^2-1-1][(-1)^2-(-1)-1)]}{1-(-1)} =\frac{(-1)(1)}{2} =-\frac{1}{2}

3 0
4 years ago
What is 6.7% written as a decimal?
crimeas [40]
0.067 is the answer for this
8 0
4 years ago
Read 2 more answers
Please help meee :((
astra-53 [7]

Answer:

49 +80= 129

180 - 129= 51

Opposite are equal.

Extend line of QR - so, the x shape made can be used to calculate what x is.

51 + 51 = 102

Reflex angles adds to 360

360-102= 258 of the other opposite angles left.

258/2 = 129 since opposite angles are equal.

Answer is 129 degrees

Hope this helps!

3 0
3 years ago
QUESTION 7.
Elan Coil [88]

The probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Given that based on a poll, 60% of adults believe in reincarnation, to determine, assuming that 5 adults are randomly selected, what is the probability that exactly 4 of the selected adults believe in reincarnation, and what is the probability that all of the selected adults believe in reincarnation, the following calculations must be performed:

  • 0.6 x 0.6 x 0.6 x 0.6 x 0.4 = X
  • 0.36 x 0.36 x 0.4 = X
  • 0.1296 x 0.4 = X
  • 0.05184 = X
  • 0.05184 x 100 = 5.184

  • 0.6 x 0.6 x 0.6 x 0.6 x 0.6 = X
  • 0.36 x 0.36 x 0.6 = X
  • 0.1296 x 0.6 = X
  • 0.07776 = X
  • 0.07776 x 100 = 7.776

Therefore, the probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Learn more in brainly.com/question/795909

5 0
2 years ago
Other questions:
  • Find the slope and y intercept 2x+3y=1,470
    7·2 answers
  • Math question down below
    15·2 answers
  • A recipe calls for 2 cups of flour to make 2 dozen cookies. use the proportion to calculate how much flour is needed to make 6 d
    13·1 answer
  • 2A - 5B + 4X = C - 8X
    10·1 answer
  • Ohh plz help me i really could use it
    7·1 answer
  • Y = 6x<br> 2х + Зу = -20
    14·1 answer
  • The Sine Function
    5·1 answer
  • Which size of yogurt shown in the table has the lowest<br> uzit price?
    7·1 answer
  • What polynomial has quotient x^2 + 6x − 2 when divided by x + 3?
    10·1 answer
  • A recent survey on movies found that 1 out of 6 students likes comedy films. Graph the relationship between the total number of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!