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
Oliga [24]
3 years ago
14

Help Me Please!!!

Mathematics
1 answer:
Ksju [112]3 years ago
8 0

Answer:

The surface area is 288\ cm^{2}

Step-by-step explanation:

we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four triangular lateral faces

so

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

where

b is the length side of the square base

h is the height of each lateral triangular face

we know that

\frac{b}{2}=h -----> by angle of 45 degrees

sin(45\°)=\frac{h}{6\sqrt{2}}

h=6\sqrt{2}(sin(45\°)

h=6\ cm

Find the value of b

b=2h=2(6)=12\ cm

Find the surface area

SA=12^{2} +4[(\frac{1}{2}) (12)(6)]=288\ cm^{2}

You might be interested in
What is the value of -3|15 - s| + 2s3 when's = -3
slamgirl [31]
<span>-3|15 - s| + 2s^3 when s = -3 is
</span>-3|15 - (-3)| + 2(-3)^3 = <span>-3|15 + 3| + 2(-27) = </span><span>-3|18| + (-54) = -3(18) - 54 = -54 - 54 = -108</span>
6 0
4 years ago
Tell whether x and y are in a proportional relationship. Explain<br> your reasoning.
notsponge [240]
No because they 90 to 200 is 110 but 200 to 325 is 125

110 obviously does not equal 125
8 0
3 years ago
s there a dilation that maps shape II onto shape I? If so, what is the scale factor and is it an enlargement or a reduction?
Agata [3.3K]

Answer:

Enlargement.

Scale Factor: 3

Step-by-step explanation:

Use points to find the enlargement. Typically, you will use all the points.

A(1 , 1) ⇒ A'(3 , 3)

B(2 , 1) ⇒ B'(6 , 3)

C(1 , 2) ⇒ C'(3 , 6)

D(2 , 2) ⇒ D'(6 , 6)

To find the scale factor, simply divide the Point' with the original Point. Use any number.

A'(3 , 3)/(A(1 , 1)) = 3

B'(6 , 3)/(B(2 , 1)) = 3

C'(3 , 6)/(C(1 , 2)) = 3

D'(6 , 6)/(D(2 , 2)) = 3

Your scale factor is 3.

7 0
3 years ago
What is the answer for “round 756,04 to the nearest tenth
777dan777 [17]
If you mean 756.04, the answer is 756.0. 4 is closer to 0.

5 Or More, raise the score
4 Or Less, let it rest
7 0
3 years ago
Michael and Kathryn bowl together and their combined total score for one game was 425points. Michael’s score was 70 less than tw
In-s [12.5K]

Hey there!

Let us take Michael's score as ' x '

Let us take Kathryn's score as ' y '

Michael - 70 less than twice Kathryn's


x = 2y - 70

y = y

Add them, we get , 425

2y - 70 + y = 425

3y - 70 = 425

3y = 495

y = 495/3

y = 165

Kathryn's score = 165

Michael - 2 ( 165 ) - 70

= 260

Hope it helps!

7 0
3 years ago
Other questions:
  • It is reported that 32% of shoppers use cash to pay for their purchases. Based on this report, if a store has 250 sales in one d
    13·2 answers
  • Eloise surveyed her classmates to see who goes to the movies at least twice a week. She recorded the results in the table separa
    12·1 answer
  • What is the product?
    6·1 answer
  • What is 212 dived by 9
    7·2 answers
  • What are the intercepts of y=4x-2
    10·1 answer
  • The measures of two supplementary angles are 12q - 9 and 8q + 14. Find the measures of the angles.
    11·1 answer
  • What is the mean?<br> 69 71 85<br> 96<br> 93 78 89
    15·1 answer
  • Plz help meeeeeeee <br>I need to turn this in today<br>plzzz!!!!!!​
    15·2 answers
  • What do the sides in a triangle add up to? I know that the inner angles of a triangle add up to 180°, but what do the sides of a
    9·1 answer
  • Claire tried to evaluate an expression step by step.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!