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
strojnjashka [21]
3 years ago
5

Find the area and perimeter of an isosceles trapezoid with legs 25cm and bases 16cm and 30cm

Mathematics
2 answers:
Shkiper50 [21]3 years ago
6 0
Perimiter=base1+base2+side1+side2

side1=side2=25
base1=16
base2=30
perimiter=16+30+25+25=96 cm
area of trapezoid=1/2 height times (base1 +base 2)


base 1=16
base2=30

find height
isosolees so
30-16=14
14/2=7
find heigh using:
pythagorean theorem
25^2=7^2+h^2
625=49+x^2
subtract 49 from both sides
576=h^2
square root of both sides
24=h


(base1+base2) times height times 1/2=area
(16+30) times 24 times 1/2=(46) times 12=552 cm^22

the answer is 552 square centimiters or cm^2
and perimiter=96 cm
Varvara68 [4.7K]3 years ago
4 0
<u>A=1/2h(b1+b2)</u>
= 1/2(h)(30+16)
<em>>how to find h<</em>
<em>>30-16= 14/2 = 7<</em>
<em>>25²-7² = 625-49 = 576<</em>
<em>>√576 = 24 .. h=24<</em>
= 1/2(24)(30+16)
= 12(46)
A = 552 cm²
<u>P= b+b+l+l</u>
= 30+16+25+25
P = 96 cm
You might be interested in
What is 2 + 1 = ? is it 3 or is it 3 because i dont know​
Vesnalui [34]

Answer: 4

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Two families are shopping for a camping trip. The first family buys 3 flashlights and 4 sleeping bags at a cost of $118. The sec
Sliva [168]

Answer:

3x +4y = 118

5x+6y =180

y= $25

Step-by-step explanation:

Let x = the cost of a flashlight

Let y = the cost of a sleeping bag

3x +4y = 118

5x+6y =180

Multiply the first equation by -5

-5(3x +4y) = -5*118

-15x -20y = -590


Multiply the second equation by 3

3(5x+6y) =3*180

15x + 18y = 540

Add the modified equations together.

We are using elimination to eliminate the variable x

-15x -20y = -590

15x + 18y = 540

----------------------------

-2y = -50

Divide by -2

-2y/-2 = -50/-2

y =25

Each sleeping bag costs $25

7 0
3 years ago
Read 2 more answers
Lockheed Martin, the defense contractor designs and build communication satellite systems to be used by the U.S. military. Becau
Nana76 [90]

Answer:

P(52

And we can find this probability with this difference:

P(-0.851

And if we use the normal standard distribution or excel we got:

P(-0.851

Step-by-step explanation:

Let X the random variable that represent the time required to construct and test a particular component of a population, and for this case we know the distribution for X is given by:

X \sim N(60,9.4)  

Where \mu=60 and \sigma=9.4

We want to find this probability:

P(52

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(52

And we can find this probability with this difference:

P(-0.851

And if we use the normal standard distribution or excel we got:

P(-0.851

5 0
3 years ago
PLZ HELP ME ON THIS QUESTION GUYS!!
Misha Larkins [42]

Answer:

The like terms are: {3.2a, 4 1/3a, a} {1, 7}

Simplify: -2.1333333...a + 6

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
Read 2 more answers
When doing currency exchange why is it better to carry the transaction out to five or six places rather than round to cents. Wha
k0ka [10]
When rounding earlier, it could be screwing you out of an extra few cents that you might eventually need for tax
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 1/2 X 3 Plus 1/2 Plus 1/2 Plus 1 ?
    5·2 answers
  • The ratio of the volume of fruit juice to the volume of smoothies served at a party was 4 1/2: 2.4. There were 35 liters more fr
    9·1 answer
  • Help with algebra 2 I can’t figure out how to solve the problem .
    5·1 answer
  • How many pounds is 5,888 oz??
    12·2 answers
  • I hatte math so much
    7·1 answer
  • Assume the triangular prism has a base area of 49 cm^2 and a volume of 588 cm^3. Which base side length does the rectangular pri
    9·1 answer
  • Function A is represented by the equation y = 4x + 6.
    7·1 answer
  • I will give brainliest to whoever answers even if it’s just one part. please:)) i’ve been trying for so long
    9·1 answer
  • Barry's final score is 45 which player had the greater final score?
    8·1 answer
  • Noah thinks the answers to these two questions will be the same. This year, a herd of bison had a 10% increase in population. If
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!