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
galina1969 [7]
3 years ago
12

A. Explain why ABC and ADBE are similar B. What is the height of the building?

Mathematics
1 answer:
777dan777 [17]3 years ago
7 0

Step-by-step explanation:

This figure is not the best, but I'll try my best here

Since BC is parallel to BE (BC is part of BE) and BA is part of BD, two sides are  parallel, making two angles congruent and the triangles therefore similar.

Since BA correlates to BD (they are parallel), we can use the knowledge that BA is 7 and BD is 42 to find the scaling factor to be 42/7 =6 from ABC to DBE. Since BC correlates to BE, BC = 10, and the scaling factor is 6, BC*6=BE= 60 = height

You might be interested in
Carley has 8 1/2 yards of fabric. She uses 2 1/2 to make pillows and 3 yards to make curtains. How much fabric is remaining
soldier1979 [14.2K]
3 yards of fabric will remain
3 0
3 years ago
A newspaper published an article about a study in which researchers subjected laboratory gloves to stress. Among 260 vinyl​ glov
yawa3891 [41]

Answer:

Step-by-step explanation:

pop 1 n₁ = 260, p₁ = 58% = 0.58

pop 2 n₂ = 260, p₂ = 8% = 0.08

Null hypothesis: p₁ ≤ p₂

Alternative hypothesis: p₁ > p₂

The test statistic : p₁-p₂ / √{p-sample (1 - p-sample) (1/n₁ + 1/n₂)}

where p-sample is sample proportion = p₁n₁ +p₂n₂ / n₁+n₂

Thus, p-sample = 0.58x260 +0.08x260 / 260+260 =150.8+20.8 / 520 = 171.6 / 520 = 0.33.

Thus, the test statistic is (0.58 - 0.08) / √[0.33 (1-0.33) (0.0038+0.0038)

  = 0.5 / √[0.33(0.67) (0.0076)

= 0.5 / √0.00168036

= 0.5 / 0.04099

= 12.20

P = P(Z>12.20) = 1-P(Z≤12.20) at a significance level of 0.1= the p-value is less than the hypothesized thus, we have sufficient evidence to reject the null hypothesis and concluding that vinyl gloves have a greater virus leak than latex gloves.

5 0
3 years ago
What is 1+1<br> Who ever awnser first get brainlyist
Bas_tet [7]

Answer:

2

Step-by-step explanation:

Hope this helps, been doing it all my life! :P

8 0
3 years ago
Read 2 more answers
How to find the perimeter of a parallelogram
jonny [76]
Perimeter is the sum of all the sides of the shape

do you know the length of each side of the parallelogram?

4 0
2 years ago
Read 2 more answers
2. Jay earns $18.40 per hour. He normally works 40 hours n a week. He was 8 points
NemiM [27]

Answer:

956.80 total week

Step-by-step explanation:

18.40 * 40= $736.00 reg time

18.40*1.5= $27.60 hr for overtime

27.60*8 hrs of ot= $220.80

220.80+736.00= $956.80 total

3 0
3 years ago
Other questions:
  • What is the mean of the high temperatures, in degrees Fahrenheit, for the week? Show your work.
    13·1 answer
  • Rx+h=sx-k solve for x
    6·1 answer
  • Which equation can be used to solve for angle A?
    7·1 answer
  • What is 4x+6y=12 in y=mx+b form?
    9·1 answer
  • What is the value of X
    15·1 answer
  • I need some help on area
    12·2 answers
  • 100 Points! Will give brainliest!
    13·2 answers
  • Can someone please help me with my homework:(
    14·2 answers
  • F(x) = -x + 2 equation of inverse
    12·1 answer
  • PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!