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Stels [109]
3 years ago
10

The net of a square pyramid is shown below:

Mathematics
1 answer:
Kay [80]3 years ago
8 0

Step-by-step explanation:

Surface area of solid

= Area of Square + 4 * Area of Triangle

= (2)(2) + 4 * [(0.5)(2)(5)]

= 4 + 4 * 5

= 24 square inches. (3)

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Can anyone explain how to expand and simplify 3(2a+5) +5 (a-2)
Step2247 [10]
Take the first bracket and it's multiplication, 3(2a+5)
You expand my multiplying everything inside the bracket by the number outside.
3*2a = 6a
3*5 = 15
Then multiply out the second bracket, 5(a-2)
5*a = 5a
5*-2 = -10
So now you have 6a + 15 + 5a - 10
Simplify it by collecting like terms, and you have:
11a + 5
And that's the answer, hope I helped!
5 0
3 years ago
Read 2 more answers
the angle of elevation from point c to the top of the cliff is 34°. if point c is 1,000 ft from the base of the cliff, how high
Yanka [14]

Answer:

675 ft (3 s.f.)

Step-by-step explanation:

Please see attached picture for full solution.

7 0
3 years ago
Read 2 more answers
What are the x- and y- coordinates of point E, which partitions the directed line segment from A to B into a ratio of 1:2? x = (
Contact [7]

Answer:

(0, 1)

Step-by-step explanation:

In the picture attached, the question is shown.

From the picture:

  • x2 = -4 (x-coordinate of the endpoint)
  • y2 = 9 (y-coordinate of the endpoint)
  • x1 = 2 (x-coordinate of the startpoint)
  • y1 = -3 (y-coordinate of the startpoint)

Ratio m:n, means that m = 1 and n = 2.

Replacing into the formulas:

x-coordinate = m/(m+n) * (x2- x1) + x1 = 1/3 * (-4 - 2) + 2 = 0

y-coordinate = m/(m+n) * (y2- y1) + y1 = 1/3 * (9 - (-3)) + (-3) = 1

6 0
3 years ago
Marguerite is building a box from strips of wood. She needs 78 pieces of wood that are each 29 cantimeters long. The wood comes
Anarel [89]
She will need 3.77 pieces of wood because 1 piece is 6m which is 600 cm and she need 78 pieces of 29 cm so 78*29=2262 then you divide the by 600 and that gives you 3.77 so she realy need 4 sorry i f i got it wrong. 


the answer either 3.77

or 4 
7 0
3 years ago
A data set includes the following SAT scores: 340, 560, 480, 680, 700. Suppose an additional score of 700 is inserted in the dat
DIA [1.3K]

Answer:

Step-by-step explanation:

Let's first arrange it in ascending order :

340, 480, <u>560</u>, 680, 700

<u>560</u> is clearly the median.

Now add an additional score of 700 to the data :

340, 480, <u>560, 680</u>, 700 ,700

<u>560, 680</u> is separating both halves but is not the median

Median = (560+680)/2

             = 1240 / 2

Median  = 620

7 0
3 years ago
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