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aev [14]
3 years ago
5

Evaluate the expression 7+4b when b= 3

Mathematics
2 answers:
Kamila [148]3 years ago
7 0

We can substitute 4b with 12, because 4 * 3 = 12. 4b is the same as 4 different b's, and when we know b is 3, we can multiply 4 by 3 to get 12.

7 + 4b =

7 + 4 * 3 =

7 + 12 =

19.

7 + 4b when b = 3 is 19.

Jlenok [28]3 years ago
4 0

Answer:

19

Step-by-step explanation:

Since we know the value of b we can add it into the equation

1. 7+4(3)

Now we can simplify, lets start with multiplication

2. 7+12

Finally, simplify

3. 7+12= 19

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A water tank has a radius 5 feet and height 11 feet. How much water can it hold?
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The water tank hold 863.50 ft^{3} of water.

<h3>What is Volume of cylinder?</h3>

The volume of a cylinder is the number of unit cubes (cubes of unit length) that can be fit into it. It is the space occupied by the cylinder as the volume of any three-dimensional shape is the space occupied by it.

The water tank is in the shape of cylinder whose radius = 5 feet

and, height= 11 feet

Volume of water tank =\pi r^{2} h

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2 years ago
A ladder is leaning against the top of
Dafna11 [192]

Answer:

Step-by-step explanation:

Discussion

You are working with the Cosine of the angle.

Hypotenuse = 12.5

Base = 3

Theta = ?

Solution

Cos(theta) = base / hypotenuse         Substitute values

Cos(theta) = 3 / 12.5                            Divide  

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6 0
2 years ago
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frez [133]
To solve this you need to know Pythagorean theorem.

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If you don't know Pythagorean triples, I have worked it out on the image attached.

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4 years ago
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kari74 [83]

Answer:

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3 years ago
A fair die is tossed 5 times. Let <img src="https://tex.z-dn.net/?f=%5Cdfrac%7Bm%7D%7Bn%7D" id="TexFormula1" title="\dfrac{m}{n}
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Answer:

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Step-by-step explanation:

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