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
pishuonlain [190]
2 years ago
15

Hhhhhhheeeellllpppp mmmmmeeeeee

Mathematics
1 answer:
lora16 [44]2 years ago
7 0
Hey there! I’m happy to help!

The surface area is basically the area of the surface of the shape. So, if you have a cube, it’s the area of all of the surface of the cube, not anything inside.

We see that we have a net of this square pyramid. If we fold it up, the square and four triangles will make up the surface of the 3D shape we see. So, we need to find the area of all of these shapes.

SQUARE
To find the area of a square, you multiply one of the sides by itself (all the sides are the same)

10(10)=100

TRIANGLES
To find the area of a triangle, you take the base and multiply the height and then divide it by two.

10(12)=120
120/2=60
Since we have four triangles, we multiply it by four.
60(4)=240

Finally, we add this all up.

240+100=340

Therefore, the answer is 340 square inches.

I hope that this helps! Have a wonderful day!
You might be interested in
What is 6/4 simplified
Rashid [163]
Since this is an improper fraction, you simplify it into a mixed number. 
4 goes into 6 1 time. 2 left left over, resulting in 1 2/4. Simplify that into 
1 1/2
6 0
3 years ago
Read 2 more answers
DO IN 30 MINUTES <br> Pls help :(
Zina [86]
If you can’t answer all of them on time I recommend you to take a picture then write down the work that way you can say to the teacher these are the answers for the ones I left blank
6 0
2 years ago
In an obtuse isosceles triangle the angle measurements are, x∘, x∘, and (10x−2)=128∘. Find the measurement of one of the acute a
klemol [59]

Answer:

26°

Step-by-step explanation:

An obtuse triangle is a triangle that has one obtuse angle. Obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees.

An isosceles triangle is a triangle that has two equal sides and angles.  

Therefore, an obtuse isosceles triangle is a triangle with an obtuse angle and two equal sides that have two equal acute angles (angle less than 90° ).

Given:

The three angles of the triangle are given to be x°, x°  and (10x−2) = 128°. The obtuse angle is 128°, the two x° are acute angles. We are not using equation 10x − 2 since the value of the obtuse angle has been given as 128°

The sum of angles in a triangle is 180°

∴  x° + x° + 128° = 180°

2x° = 180° - 128°

2x° = 52°

x° = 52° / 2

x° = 26°

The measurement of one of the acute angles is 26°

7 0
3 years ago
In order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estim
Sonja [21]

Answer:

Step-by-step explanation:

Given that in order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estimating the average time it takes to install tile flooring.

Std deviation =4.5 errors

95% confidence interval = Mean±1.96*std dev

Hence we have

1.96(\frac{4.5}{\sqrt{n} } )

\sqrt{n} \geq 4.41\\n\geq 19.4481

Sample size should be 20.

8 0
2 years ago
Anita has a success rate of 80% on free throws in basketball. She wants to know the estimated probability that she can make exac
ivolga24 [154]

Answer:

Roll a six-sided die five times. The  numbers 1 to 4 represent a make,

and numbers 5 and 6 represent a  miss. (Correct)

Spin a spinner with three equal  sections five times. On the spinner,

one section represents a miss and  two sections represent a make. (Incorrect)

Generate a set of five numbers using  a number generator with the numbers

0 to 9.The numbers 0 to 7 represent a  make, and 8 and 9 represent a miss. (Correct)

Generate a set of five numbers using  a number generator with the numbers

0 to 5.The numbers 0 to 3 represent a  make, and 4 and 5 represent a miss. (Incorrect)

Spin a spinner with five equal sections  five times. On the spinner, four sections  represent a make and one section  represents a miss. (Correct)

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the area of this figure?
    5·1 answer
  • Use DeMoivre's theorem to evaluate the expression
    8·1 answer
  • What is the equation of the line in slope intercept form?<br> ANSWER ASAP PLZ!!!!!!!!!!!!!
    11·1 answer
  • How do I figure this problem 1/5 &gt; d + 4/5
    8·1 answer
  • A building is composed of three rooms as shown. What
    13·1 answer
  • Which pair of ratios form a proportion?
    15·2 answers
  • Pt 2 1-7, please help
    15·1 answer
  • 4 point
    10·1 answer
  • Is it possible to find the prime factorization of 29 explain why or why not
    15·2 answers
  • What is the Slope-Intercept form of the equation of a line that passes through the point (5,-3) and is parallel to the line y =
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!