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
KonstantinChe [14]
2 years ago
7

Please help me)) I need help with this!

Mathematics
1 answer:
melomori [17]2 years ago
6 0

Answer:

5? im not sure

Step-by-step explanation:

You might be interested in
In isosceles △ABC the segment BD (with D∈ AC ) is the median to the base AC . Find BD, if the perimeter of △ABC is 50m, and the
Morgarella [4.7K]

Let the equal sides of the isosceles Δ ABC be x.

Given that the perimeter of Δ ABC = 50m.

Therefore, 2x + AC = 50 --- (1)

It is also given that the perimeter of Δ ABD = 40m.

Therefore, x + BD + AD = 40

BD is the median of the Δ ABC. Therefore, D is the midpoint of AC.

So AD = CD.

Or, AD = \frac{1}{2} AC

Therefore, x + BD + \frac{1}{2} AC = 40

Multiply both sides by 2.

2x + 2BD + AC = 80

From (1), 2x + AC = 50.

Therefore, 2BD + 50 = 80

2BD = 80 - 50

2BD = 30

BD = 15m.

6 0
3 years ago
Read 2 more answers
A runner runs 8 miles in 92 minutes. What is the runner’s unit rate?
SVETLANKA909090 [29]

Answer:

Step-by-step explanation yo candice just died today

7 0
2 years ago
Your Bank account balance was $235 and 24. After two checks were cashed (each for the same amount) your balance is now -45.58. W
elena55 [62]

235.24 + 45.58 = 280.82

280.82/2 = 140.41

each check was for $140.41

8 0
3 years ago
What is the box-and-whiskers plot used to show?
12345 [234]
The whole idea of that kind of graph is that they allow you to view the complete distribution of data while also being able to see first and third quartiles, the median, and the minimums and maximums. 
5 0
2 years ago
An automatic car wash takes exactly 5 minutes to wash a car. On average, 10 cars per hour arrive at the car wash. Suppose that,
77julia77 [94]

Answer:

0.9595724

Step-by-step explanation:

Time taken to wash a car (μ) = 5 minutes

Hence, Number of cars washed per hour = 60/5 = 12 cars

If 5 cars arrive, 30 minutes to closing ; it takes 25 minutes to finish up ;

If 1 more car arrives, then it takes exactly 30 minutes

Hence, there will be no one in line at closing ;

IF 0 or 1 car arrives, if more than 1 car arrives, then there will be people in line at closing.

Hence, probability of waiting in line at closing :

1 - [p(0) + p(1)]

Using poisson :

P(x) = [(e^-μ) * (μ^x)] / x!

If x = 0

P(0) = [(e^-5) * (5^0)] / 0!

P(0) = (0.0067379 * 1) / 1

P(0) = 0.0067379

X = 1

P(1) = [(e^-5) * (5^1)] / 1!

P(0) = (0.0067379 * 5) / 1

P(0) = 0.0336897

Hence,

1 - (0.0067379 + 0.0336897)

1 - 0.0404276

= 0.9595724

Hence, the probability that anyone would be in the car washing line after closing is 0.9595724

4 0
2 years ago
Other questions:
  • A sold sphere has volume 42pie. Find the radius of the sphere
    8·1 answer
  • PLEASE HELP! (see attached image) The equation of function h is h(x) = 1/2(x-2)^2. The table shows some of the values of functio
    15·1 answer
  • Find an equation of the sphere with center (4, −12, 8) and radius 10.
    11·1 answer
  • A bulletin board measuring 28 dm long was divided among three subject areas in the ratio 2:2:3. How much space was alothed for e
    15·1 answer
  • What is the slope of the line?
    7·1 answer
  • The area of the lateral surface of the straight parallelepiped is 672 cm2, and the total area is 896 cm2. The smaller of the dia
    7·1 answer
  • F(x) = 2x - 3 and f(x) = f'(x), find the value of x.​
    6·1 answer
  • ANSWER QUICK I HAVE NOT ENOUGH TIME PLEASE IT IS DUE NOW
    9·2 answers
  • Find the equation of a line passing through (-4,-3) and perpendicular to<br> 3 x + 2 y = 14.
    12·1 answer
  • Roxanne likes to fish. She estimates that 30% of the fish she catches are
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!