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Harman [31]
3 years ago
7

What is the surface area of the rectangular pyramid? m2

Mathematics
2 answers:
Mice21 [21]3 years ago
6 0
Is the base (leght width) plus the areas of each of the four triangular faces
inessss [21]3 years ago
5 0

Answer:

82.8

Step-by-step explanation:

You might be interested in
Factor 2x2 + 5x − 63
Nimfa-mama [501]
The answer is 5x-59
To get this answer you have to follow pemdas and remember you can’t add variables to non variables, so you just expand the equation
As an example
5x + 6 -2x +7

You would get
13-3x
6 0
1 year ago
Let l be the length of a diagonal of a rectangle whose sides have lengths x and y, and assume that x and y vary with time. If x
meriva

The rate of change of the size of the diagonal is; 25.2 ft/s

By Pythagoras theorem;

The length, l of a diagonal of a rectangle whose sides have lengths x and y is;

  • l² = x² + y².

In essence; the length of the diagonal is dependent on the length, x and y of the sides.

Therefore;

(dl/dt)² = (dx/dt)² + (dy/dt)²

where;

  • (dx/dt) = 19 ft/s
  • (dy/dt) = -15 ft/s

Therefore,

(dl/dt)² = 19² + (-15)²

(dl/dt)² = 361 + 225

dl/dt = √586

dl/dt = 25.2

Therefore, the size of the diagonal is changing at a rate of; 25.2 ft/s.

Read more;

brainly.com/question/12559989

4 0
2 years ago
How long could the. Mural be if the length and height have to be whole numbers
mylen [45]
The height has to be 4, 5, or 6, so the width would be 15, 12, and 10 respectively.
4*15=60
5*12=60
6*10=60
These are the only whole numbers between 4 and 6, as whole numbers are non-decimal numbers greater than or equal to 0
8 0
3 years ago
What's the answer to this question
Cerrena [4.2K]
10.1 x 8 - 6 = 80.8 - 6 = 74.8
u just had to substitute the variables
3 0
3 years ago
Guys, please help me out. Thanks.
kaheart [24]

Answer:

w = 13

Step-by-step explanation:

Using the method of cross- multiplying

• \frac{a}{b} = \frac{c}{d} ⇒ ad = bc, thus

42(w + 11) = 28(w + 23) ← distribute parenthesis on both sides

42w + 462 = 28w + 644 ( subtract 28w from both sides )

14w + 462 = 644 ( subtract 462 from both sides )

14w = 182 ( divide both sides by 14 )

w = 13

6 0
3 years ago
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