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
mrs_skeptik [129]
4 years ago
14

Does anyone know this? Pls help ASAP !

Mathematics
1 answer:
katovenus [111]4 years ago
7 0

Answer:

BC = 280ft

Step-by-step explanation:

Because it's a symmetry diagram

the same angles and lengths.

Hope this helps :)

You might be interested in
A random sample of 10 parking meters in a beach community showed the following incomes for a day. Assume the incomes are normall
Vlad1618 [11]

Answer: (2.54,6.86)

Step-by-step explanation:

Given : A random sample of 10 parking meters in a beach community showed the following incomes for a day.

We assume the incomes are normally distributed.

Mean income : \mu=\dfrac{\sum^{10}_{i=1}x_i}{n}=\dfrac{47}{10}=4.7

Standard deviation : \sigma=\sqrt{\dfrac{\sum^{10}_{i=1}{(x_i-\mu)^2}}{n}}

=\sqrt{\dfrac{(1.1)^2+(0.2)^2+(1.9)^2+(1.6)^2+(2.1)^2+(0.5)^2+(2.05)^2+(0.45)^2+(3.3)^2+(1.7)^2}{10}}

=\dfrac{30.265}{10}=3.0265

The confidence interval for the population mean (for sample size <30) is given by :-

\mu\ \pm t_{n-1, \alpha/2}\times\dfrac{\sigma}{\sqrt{n}}

Given significance level : \alpha=1-0.95=0.05

Critical value : t_{n-1,\alpha/2}=t_{9,0.025}=2.262

We assume that the population is normally distributed.

Now, the 95% confidence interval for the true mean will be :-

4.7\ \pm\ 2.262\times\dfrac{3.0265}{\sqrt{10}} \\\\\approx4.7\pm2.16=(4.7-2.16\ ,\ 4.7+2.16)=(2.54,\ 6.86)

Hence, 95% confidence interval for the true mean= (2.54,6.86)

7 0
4 years ago
Q2
RideAnS [48]

Answer:

264 miles

Step-by-step explanation:

Let's convert 3 hours and 40 minutes into hours first.

Recall that 1 hour = 60 minutes.

Therefore 40 minutes = 40/60 hours = 2/3 hours.

The car travelled 3 and 2/3 hours in total.

Recall that distance = speed times time.

The car has travelled 72 x 3 2/3 miles = 264 miles.

8 0
3 years ago
14. During a soccer game, Player A is 87 feet from
Harrizon [31]
Player B is 60 ft away from the goal

4 0
3 years ago
Which equivalent expression can be used to solve the quotient 2/3 divided by 4/5
den301095 [7]

Answer:

The answer is 5/6 just Divided

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
280 in standard form
kifflom [539]

Answer:

it is already in standard form

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Other questions:
  • What is the solution? 21=42−3r r=−8 r=−7 r = 7 r = 8
    12·2 answers
  • Aneesha travels at a rate of 50 miles per hour. Morris is traveling 3 feet per second less than Aneesha. Which is the best estim
    14·2 answers
  • What is answer to x+10=-13  what does x equal
    14·2 answers
  • The equation d=13/v shows that the density of a particular substance equals a mass of 13 grams divided by the volume of the subs
    7·1 answer
  • Answer this correct
    15·1 answer
  • Plz help fast.Aka please don't waste my points.Show your Work
    6·1 answer
  • Martin wants to use coordinate geometry to prove that the opposite sides of
    5·1 answer
  • 5 kg equals how many grams
    8·2 answers
  • Please help me pleasere
    11·1 answer
  • Divide R125 in the ratio of 2:3​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!