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
IrinaK [193]
3 years ago
14

I have 3 questions, 20 points each please explain your answer and show work, and PLEASE GIVE AN ACTUAL ANSWER. PLEASE ANSWER SOO

N.
1. The diagram shows 5 ft student standing near a tree. The shadow of the student and the shadow of the tree end at point A. What is the height of the tree? Show all your work, and make sure to include units in your final answer.


2. 2. Provide the missing reasons for the proof.

Given: ∠C ≅ ∠E
Prove: ABC ~ DBE


Answer:
Statement Reason
1. ∠C ≅ ∠E 1.
2. ∠ABC ≅ ∠DBE 2.
3. ABC ~ DBE 3.



3. 3. Using Postulates and/or Theorems learned in Unit 1, determine whether PRQ ~ MRN. Show all your work and explain why the triangles are similar or why they are not.

The first picture is for 1st question and the second picture is for the second question, help will be GREATLY appreciated and I will mark Branliest.

Mathematics
1 answer:
alexdok [17]3 years ago
5 0

Answer:

Step-by-step explanation:

1.From the given triangle, ABC, using the proportionality theorem, we get

\frac{FA}{CA}=\frac{EF}{BC}

⇒\frac{8}{40}=\frac{5}{x}

⇒x=25ft

Thus, the height will be 25 feet.

2.  

Statement                                                   Reason

1.∠C≅∠E                                                     Given

2. ∠ABC≅∠DBE                                Vertically opposite angles

3. ΔABC is similar to ΔDBE               AA similarity rule.

You might be interested in
If every gram of salt is 20.9% chlorine, how much is required to make a 220 ppm chlorine solution with 350 grams of water?
Temka [501]

Answer:

The amount of salt required is 0.3685 grams.

Step-by-step explanation:

20.9% of 1 gram of salt is chlorine, which means the grams of chlorine in 1 gram of salt are

\dfrac{20.9\%}{100\%} *1\: gram = 0.209g\: \text{chlorine}

Now, to make 220 ppm solution, it must be that

\dfrac{220}{10^6} = \dfrac{y}{350+y},

where y is the grams of chlorine required.

We rearrange the equation and solve for y:

220(350+y) = 10^6y

77000+220y =10^6y

77000 = (10^6-220)y

y = \dfrac{77000}{999780}

\boxed{y= 0.07702g}

since 1 gram of salt has 0.209 grams of chlorine, 0.07702g of chlorine corresponds to

\dfrac{0.07701}{0.209} = 0.3685g {\text{ of salt. }

Thus the amount of salt required is 0.3685 grams.

7 0
3 years ago
Adam invested $12,000 in a six-year CD that paid 7.1% interest, but later needed to withdraw $2,500 early. If the CD's penalty f
Neporo4naja [7]

Answer:

C

Step-by-step explanation:

The amount Adam invested in a six years CD was $12,000 was 7.1%

Adam made a withdrawal of $2500 early. The early withdrawal was worth eighteen months of interest on the amount withdrawn.

Monthly interest = 7.1% / 12

= 0.59%

The interest for 18 months will be

(7.1% /12)18

= 10.65%

The penalty for withdrawing early was 18 months worth the interest on the amount withdrawn

= 2500 * 10.65%

= 266.25

This means Adam needs to pay a penalty of $266.25 for withdrawing early

7 0
3 years ago
Evan uses 1/3 of his tickets to ride the loop-D- loop twice. what is 1/3 of 24 tickets?
Keith_Richards [23]
1/3 of 24 tickets is 8. I got this answer by dividing 24 by 1/3, and got the exact answer of 8!!!! Hope this helps!!!
3 0
3 years ago
Read 2 more answers
24.94 is 29% of what number? plz help
Vlada [557]

Answer:

7.2326

Step-by-step explanation:

3 0
3 years ago
V + 9<br> ---------- = 8 <br> 3<br><br> Can someone help me ??
bagirrra123 [75]
\frac{v + 9}{3} = 8

Multiply both sides by 3, because 3 is our denominator (bottom number in a fraction), and we want to get rid of the denominator.

3 × (v + 9) = 8 × 3

Simplify.

3v + 27 = 24

Then, subtract both sides by 27.

3v = 24 - 27

Simplify.

3v = -3

Divide both sides by 3.

v = -1

~Hope I helped!~
4 0
3 years ago
Other questions:
  • Coffee cost 5$ per pound how much dose 7 pounds cost
    6·2 answers
  • What is the Pythagorean Theorem
    10·2 answers
  • I need help GRAPHING! <br><br>how do I graph: 12.50x + 6.25y ≥ 1500? Thank you!
    6·2 answers
  • What is 10 multiplied by 5?
    7·2 answers
  • Kelly opened a bank account that earns 1.2% simple interest each year. After 7 years, Kelly will earn $126 in interest. How much
    7·2 answers
  • So lonely have no friend
    7·1 answer
  • (2, 0) and (4,2) ( write your answer in the form of y in terms of x)​
    9·1 answer
  • What is the distance from the origin to point A graphed on the complex plane below?
    12·1 answer
  • HELP
    7·1 answer
  • 6 Mateo and Katia each walked into a
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!