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My name is Ann [436]
2 years ago
9

2k+5=21 answer this problem plz

Mathematics
1 answer:
Anon25 [30]2 years ago
3 0

Answer:

k=8

Step-by-step explanation:

2k+5=21  (-5 on both sides to get rid of +5)

2k=16      (divide by 2 to get rid of that 2 in front of K)

k=8

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The sum of the three numbers in 2003,two of the numbers are 814 and 519 what is the third number​
KonstantinChe [14]

Answer:

670

Step-by-step explanation:

2003-814=1189

1189-519=670

8 0
3 years ago
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Use a net to find the surface area of the right triangular prism shown:
vazorg [7]

The surface area of the right triangular prism is 270 sq ft

<h3>Total surface ara of the prism</h3>

The total surface area of the prism is the  sum of all the area of its faces

For the two triangles

A = 2(0.5bh)

A = bh

A = 7 * 12 = 84 sq.ft

For the two rectangles

A = 2lw

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Area  6ft * 7ft

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TSA = 84 + 144 + 42

TSA  = 270 sq ft

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Learn more on surface area of prism here; brainly.com/question/1297098

3 0
2 years ago
Y + 3=-(x +5) match the graph with the correct equation
adelina 88 [10]
Simplified firstly ,y = -x-8,
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3 years ago
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In a geometric sequence, A1 = 0.3 and r=3.Find A12, to the nearest integer
soldi70 [24.7K]

Step-by-step explanation:

We have,

First terms of geometric sequence, a = 0.3

Common ratio, r = 3

It is required to find the 12th term of a GP. The formula of the nth term is given by :

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Here, n =12

So,

T_{12}=0.3\times 3^{12-1}\\\\T_{12}=0.3\times 3^{11}\\\\T_{12}=53144.1

or

T_{12}=53144

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3 years ago
Solve for Literal equation for y<br> 5 = 4x+8y
amid [387]
1/8=y is the answer
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