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amid [387]
3 years ago
11

True or false?

Mathematics
2 answers:
meriva3 years ago
7 0

Answer:

true

Step-by-step explanation:

zzz [600]3 years ago
6 0

Answer:

Yes, the statement "An exponential decay function represents a quantity that has a decreasing halving time" is true. In addition, this process can be expressed by the following differential equation, where N is the quantity and λ (lambda) is a positive rate called the exponential decay constant: d N d t = − λ N . {displaystyle {frac {dN} {dt}}=-lambda N.}

Step-by-step explanation:

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The pyramid shown has a square base that is 12 centimeters on each side. The slant height is 18 centimeters. What is the surface
Sav [38]
<span>The <u>correct answer</u> is:

576 sq. cm.

Explanation:

The surface area of a figure is the sum of the areas of the faces of the figure.

The slant height goes from the apex of the pyramid along a face and is perpendicular to the base at the bottom of that face. This gives us 2 measurements of each triangular face of the pyramid: the height (the slant height of the pyramid is the height of the triangular face), 18 cm, and the base <span>of the triangular face, 12 cm.

The formula for the area of a triangle is A = 1/2bh; using our measurements we have:
A = 1/2(12)(18) = 108 sq. cm.

There are 4 triangular faces on a square pyramid, and each will have an area of 108 sq. cm.; this gives us:
4(108) = 432 sq. cm.

The area of the base is given by length times width, or 12*12 = 144 sq. cm.

This gives us a total surface area of 432+144=576 sq. cm.</span></span>
8 0
3 years ago
Read 2 more answers
Which of these expressions are equivalent? Show your work
ivanzaharov [21]

Answer:

7(2+3x)-3x and 4(3+3x)+2(1+3x)

Step-by-step explanation:

7(2+3x)-3x

= 14 + 21x - 3x

= 18x + 14

2(6x+7)+10x

= 12x + 14 + 10x

= 22x + 14

4(3+3x)+2(1+3x)

= 12 + 12x + 2 + 6x

= 18x + 14

7(2+3x)-3x and 4(3+3x)+2(1+3x) are equal expressions.

3 0
2 years ago
Kevin's bedroom is 14 feet long and
Arisa [49]

Answer:

bathroom area is 1/4 area of bedroom

Step-by-step explanation:

bathroom area = 35 sq ft

bedroom area = 140 sq ft

8 0
2 years ago
Choose all of the expressions that can be used to find the volume of the rectangular prism.
Ulleksa [173]

Answer:

C. (6 × 5) × 2 = 60 m³

D. 5 × (6 × 2)

E. (2 × 5) × 6

Step-by-step explanation:

Volume of a rectangular prism can be given as, V = L*W*H

L = 6

W = 5

H = 2

However, whichever way we choose to use as either L, W, or H, we would still get the same value as the volume.

Thus:

✔️V = (6 × 5) × 2 = 60 m³

✔️V = 5 × (6 × 2) = 60 m³

✔️V = (2 × 5) × 6 = 60 m³

These are the three expressions that can be used to find the volume.

3 0
3 years ago
Which number sentence shows the associative property of addition? Choose all that apply.
Stels [109]
Both options A and D apply.
7 0
3 years ago
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