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
harkovskaia [24]
3 years ago
8

Please answer the following questions​

Mathematics
1 answer:
Vlada [557]3 years ago
5 0

Step-by-step explanation:

sorry I can only explain as there are no labels to each diagram

The first diagram is single and can solved using triangular formular given as 1/2 ×base × height

A = 1/2 × 5 × 12

A = 30cm^2..

as for the second one...it consist of 2 diagrams which will be solved separately before adding ...it can simply be done using Pythagoras theorem..

To get the smaller part ...out tita is 45degrees while our adjacent is 4 and opposite is x we are to find x which is the height...

using SOH CAH TOA...

WE HAVE TAN45= opp/adj

Tan45= x/ 4

Tan 45 =1 ...so

1 = x/ 4

and x= 4 ...

so...having our height as 4 and base as 4 ..

Area of smaller triangle become 1/2 × 4 × 4

A = 8cm^2 ...

......SOLVING FOR THE SECOND DIAGRAM ..

WE HAVE the height as ( dotted spot + undotted spot ) = 4 + 4 = 8cm

and our base can be gotten from

Tan45 = opp / adj

1 = 8/x ..

x = 8cm ....so the base is 8 and the height is 8

..

The Area becomes 1/2 × 8×8 = 32cm ...

Total area becomes 32cm + 8cm = 40cm^2

You might be interested in
Expand the following:<br> 3/8(16x-24)
Ainat [17]
=\frac{3}{8}(16x-24)
=3(2x-3)
=6x-9
4 0
3 years ago
Read 2 more answers
What is 14 quarter inches
Ugo [173]
14 quarter inches is 3 and a half inches
Hope this helped :)
6 0
3 years ago
Plz Hurry
Svetradugi [14.3K]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
I'm in algebra please help and explain with work
lidiya [134]
2x+4y=0
3x+y=10
So what we want to do is get y onto one side by itself using whatever equation you like.
So I'm taking 2x+4y=0 and subtracting 4y from both sides
So we end up with
2x=4y
Divide both sides by four
2/4x is 1/2 x
So we get 1/2x=y
Take this and plug it into the other equation
3x+y=10
3x+1/2x=10
Add your like terms
3 1/2x=10
Putting 3 1/2 as a mixed number we get 7/2
So..
7/2x=10
Multiply by the opposite of 7/2 on both sides
Which is 2/7 this will cancel out the left side.
So we end up with
X= 10•2/7
X=20/7
Which is 2 and 6/7 as a mixed number.

5 0
3 years ago
Lynda is training for a half-marathon she ruined 3 3/4 miles on Monday 3 miles on Tuesday and two and a half miles on Wednesday
Shalnov [3]
3 3/4+3+2 2/4=9 1/4.
8 0
3 years ago
Other questions:
  • Which expression is equivalent to StartFraction c squared minus 4 Over c + 3 EndFraction divided by StartFraction c + 2 Over 3 (
    9·2 answers
  • the number of years that brad has been on the soccer team is 2 less than 5 times the number of years that scott has in total the
    7·1 answer
  • Which of the following are the coordinates of the vertex of y = −x2 + 2x + 1
    10·1 answer
  • Use Gauss's approach to find the following sums (do not use formulas) a 1+2+3+4 998 b. 1+3+5 7+ 1001 a The sum of the sequence i
    5·1 answer
  • (52x + 70) - (-36x + 18)
    9·1 answer
  • Perform the operation and reduce the answer fully. 3/10 - 3/30
    14·1 answer
  • A supermarket advertises 3 pounds of tomatoes for $ 1.20. How much would it cost to buy 5 pounds of tomatoes?
    5·1 answer
  • Which of the following statements is false?<br> 8&lt;8<br> 2&gt;8<br> 2&lt;8<br> 2&lt;8
    5·2 answers
  • Two friends leave school at the same time, Sarah is heading due north and Beth is heading due east. One hour later they are
    6·1 answer
  • Answer question in image
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!