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
mihalych1998 [28]
3 years ago
15

Find the area of the polygon.

Mathematics
1 answer:
zalisa [80]3 years ago
4 0

Answer:

A=128\ cm^2

Step-by-step explanation:

we know that

The area of the polygon is equal to the area of a square plus the area of four congruent triangles

so

A=b^2+4[\frac{1}{2}(b)(h)]

where

b=8\ cm\\h=4\ cm

substitute

A=8^2+4[\frac{1}{2}(8)(4)]

A=64+64=128\ cm^2

You might be interested in
Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70 degree angle
LuckyWell [14K]
Assuming the house is parallel to the ground, your triangle is made up by the house, the ground, and the ladder. Using sin(x) = opposite/hypotenuse on the angle 70 degrees, you would have sin(70) = 20/x (because 20 is the side opposite of the angle connecting the ladder and the ground)
--> simplify sin(70) * x = 20 --> x = 20 / sin(70 
--> substitute (and make sure your calculator in in degrees) x= 21. 284
7 0
4 years ago
What is your hart rate if you count 18 beats in 15 seconds
inna [77]

Answer:

Your heart rate would be 72 beats per minute

Step-by-step explanation:

You need to get 60 minutes so If you multiply 15 by 4, its 60. Do the same for 18 and your heart rate is 72 beats per minute

4 0
3 years ago
The complement of an angle is 25°. What is the measure of the angle?
Jlenok [28]

Answer:

If the complement of an angle is 25 degrees, then the measurement of the angle will be 65 degrees.

4 0
3 years ago
Determine the volume of the rectangular prism.<br>​
Flauer [41]

Answer:

<h2><u>50 ft³</u></h2>

Step-by-step explanation:

We know the formula for a rectangular prism is length × width × height

We also know all the sides so we can rewrite the formula replacing variables.

The length is 8, the width is 2\frac{1}{2} and the height is 2\frac{1}{2}

8 × 2\frac{1}{2} × 2\frac{1}{2}

Multiply which ever way is easy for you. I am just multiplying from left to right.

8 × 2\frac{1}{2} = 20

20 × 2\frac{1}{2} = 50

Now we get 50. Before we put our answer as 50, there are two more steps.

First we need to add the measurement unit which is feet or ft

We also need to add ³ since it is volume

<u>50 ft³ is our final answer</u>

7 0
3 years ago
I need to know how to do these asap!!
ludmilkaskok [199]

Answer:


Step-by-step explanation:

y =4/3 x+4

slope intercept form

y = mx+b

the y intercept is 4  (0,4)

and the slope is 4/3  which is change in y over change in x

we go up 4 to the right 3

we can rewrite the slope as -4/-3

so we can go down 4 and to the left 3

this would be point (-3,0)


we have 2 points marked, now draw a line throught them


8 0
3 years ago
Other questions:
  • What is the answer to this?
    12·1 answer
  • (⚠please help⚠)Which languages do many East Africans speak in addition to their many Native languages?
    11·2 answers
  • Which of the following is a valid form of evidence in deductive reasoning? a.property b.pattern c.assumption d.conjecture
    14·1 answer
  • Let u = PQ be the directed line segment from P(0,0) to Q(9,12) and let c be a scalar such that c &lt; 0. which statement best de
    8·2 answers
  • An expert sharpshooter misses a target 5 percent of the time. find the probability that she will miss the target for the second
    8·1 answer
  • Sandra bought 30 T-shirts at the clothing store. 20% of the T-shirts were blue and half of the T-shirts were black. How many of
    11·1 answer
  • Explain How can you describe a proportional relationship with a number?<br><br> NO TROLL ANSWERS!!
    15·2 answers
  • If A = {1, 2, 3, 4} and B = {4, 5, 6}, find A ∪ B.
    14·1 answer
  • A 7-meter roll of red ribbon costs $2.52. What is the unit price
    13·2 answers
  • If Carol pays $62.90 to fill the 17-gallon gas tank in her vehicle and she can drive 330
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!