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
kiruha [24]
3 years ago
6

Please, somebody, solve this quick and reply with step by step explanation AND provide all steps of working!

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

Answer:

For a trapezium of height H, parallel side 1 X, and parallel side 2 Y, the area is:

A = (1/2)*H*(X + Y)

with this we can complete the table.

a)

Here we know:

X = 7cm

Y = 11cm

H = 6cm

Then: A = (1/2)*6cm*(7cm + 11cm) = 54 cm^2

b)

Here we know:

X = 8 m

Y = 10 m

A = 126 m^2

Then:

126 m^2 = 0.5*H*(8m + 10m)

126 m^2 = H*9m

126 m^2/9m = H = 14m

Then the height of this trapezoid is 14m

c)

Here we know:

X = 5mm

H = 8mm

A = 72 mm^2

Then:

72 mm^2 = 0.5*8mm*(5mm + Y)

72 mm^2 = 4mm*(5mm + Y)

72mm^2/4mm = 5mm + Y

18 mm = 5mm + Y

18mm - 5mm = Y

13 mm = Y

Then the parallel side 2 is 13 mm long.

You might be interested in
Help please my moms going to kill me if I don’t get this right
iragen [17]

Answer:

x=-\frac{41}{6}

Step-by-step explanation:

Pay attention to the two tick marks. This indicates that those sides are congruent to each other and so will the angles on the bottom and top. Therefore, we can set up the equation 137+2(-3x+1)=180 and solve for x:

137+2(-3x+1)=180

137+(-6x+2)=180

137-6x+2=180

139-6x=180

-6x=41

x=-\frac{41}{6}

8 0
2 years ago
Given the first term and the common difference find the first five terms and the explicit formula
Zielflug [23.3K]

Answer:

a_{1} = -34,\: a_{2} = -44,\: a_{3} = -54,\: a_{4} = -64,\: a_{5} = -74

____________________________________

a_{n} = -34\:–\:10(n-1)

8 0
3 years ago
What is 1000×1000<br><br><br> PLEASE HELP ME
ella [17]

Answer: 1000000

Step-by-step explanation:

5 0
3 years ago
What is the explicit formula for the sequence?
Aleksandr [31]

Answer:

a_{n} = n - 2

Step-by-step explanation:

Note the difference between consecutive terms is constant, that is

0 - (- 1) = 0 + 1 = 1

1 - 0 = 1

2 - 1 = 1

3 - 2 = 1

This indicates the sequence is arithmetic with n th term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 1 and d = 1, thus

a_{n} = - 1 + n - 1 = n - 2

7 0
3 years ago
kirans aunt is 15 years older than kiran. how old will kirans aunt be when kiran is 13? how old will kiran be when his aunt is 6
notka56 [123]

Answer:

When Kiran is 13, his aunt will be 28.

When Kiran's aunt is 60, he will be 45.

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve each equation for the indicated variable <br><br> K=a-y;y<br><br> Dfg=h;g<br><br> W=x/a-b;x
    7·1 answer
  • Which relationship describes angles 1 and 2?
    11·1 answer
  • If f(x)= 1/3x and g(x)=3x, then what are g * f (x) and g*f(1/2)
    6·1 answer
  • A geometric progression has a third term of 20 and a sum of infinity which is 3 times the first term. Find the first term ​
    11·1 answer
  • What are some geometric concepts that you can write about a desk? For example the top of the desk is equilateral.
    11·2 answers
  • Help pls and thank u!<br><br><br><br> ...
    12·1 answer
  • Find the elapsed time.
    15·1 answer
  • The question is in the picture​
    9·2 answers
  • Select all numbers that are solutions to the inequality w &lt; 1.
    9·2 answers
  • What is the factorization of the expression below?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!