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
postnew [5]
2 years ago
12

Need help figuring this out!

Mathematics
1 answer:
Ulleksa [173]2 years ago
6 0

For this case, we have that by definition, the area of a triangle is given by:

A = \frac {b * h} {2}

where:

b: It's the base

h: It's the height

In this case we have:

b = 21 \ ft\\h = 6 \ ft

Substituting:

A = \frac {21 * 6} {2}\\A = 63 \ ft ^ 2

Answer:

63 \ ft ^ 2

You might be interested in
~PLEASE HELP ASAP OFFERING 25 POINTS ASAP PLEASE ANSWER ALL QUESTIONS~
seraphim [82]

6. If 55% of the selling price is markup, the remainder (45%) is the cost. Gaitan can pay up to 45% of 489.50 = $220.28.

7. If 52% of the selling price is markup, the remainder (48%) is the cost. 48% of the selling price is $38.87.

... 0.48 × selling price = cost

... selling price = cost/0.48 = $38.87/0.48 = $80.98

8. If 40% of the selling price is markup, the remainder (60%) is the cost, $12.95.

... 0.60 × selling price = $12.95

... selling price = $12.95/0.60 = $21.58

9. If 35% of the selling price is markup, the remainder (65%) is the cost.

... 0.65 × $24.00/dz = $15.60/dz

10. If 60% of the selling price is markup, the remainder (40%) is the cost. Veronica can pay up to 40% of $600.00 = $240 for the jacket.

4 0
3 years ago
Elana goes for a long walk this graph shows her time and distance traveled throughout the walk
belka [17]

Answer: 4 Mph.

Step-by-step explanation: ...

4 0
2 years ago
Can you guys help please im so confused
marissa [1.9K]

Answer:

a) see below

b) 40x20 meters

Step-by-step explanation:

Write down what you know:

- The area of the enclosure is length*width, so

A = x \cdot y

- The length of the fencing is 80 meters, so

2y + x = 80

Now we have to combine these two equations above, and get rid of y in the process.

First rewrite the second as:

y = 40 - \frac12 x

Then substitute for y in the first:

A = x (40 - \frac12 x) = 40x - \frac12x^2

b) To maximize A, find the zero of the first derivative:

A'(x) = 40 - x = 0 \implies x=40

So y = (80-40)/2 = 20 meters.

8 0
2 years ago
Sophia is 6 years older than her brother Eric. The sum of their ages is 28
Step2247 [10]

Answer:

Sophia is 17 years old. Sophia's brother is 11 years old.

Step-by-step explanation:

7 0
3 years ago
Find the area of the circle. Round your answer to the nearest tenth.
Lyrx [107]

Answer:

254.47 to the nearest tenth is 254.5mm

Step-by-step explanation:

Hey! here's explanation:

A= π x r^2 (squared)

so A = π x 9mm^2

which gives you the answer of 254.47

TO THE NEAREST TENTH IS 254.5!

*hope this helps!*

6 0
3 years ago
Read 2 more answers
Other questions:
  • Alexis bought x boxes of cereal for $3 each, including tax, and paid with a $20 bill. Which expression represents the total amou
    8·2 answers
  • 15 is what percent of 40?
    10·1 answer
  • (please zoom / zoom out if needed to see question. (: )
    6·2 answers
  • Can someone please help as soon as possible!!
    10·1 answer
  • -45×68 what is the answer
    12·1 answer
  • Need help pls!!!!! anyone?
    6·2 answers
  • What is the distance between (-9 -3) and (-4 -1)
    5·1 answer
  • 174 fourth graders voted. How many of them voted for chicken nuggets?<br><br> Ps. PLease help;3
    11·2 answers
  • Given the function defined in the table below, find the average rate of change, in
    8·1 answer
  • A rectangle has a length of 6.5m and a width of 7.3m what is the area and the perimeter
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!