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Valentin [98]
3 years ago
12

If f(x) = 2x-5, then f(4) is A 3B 5C 4D 17​

Mathematics
2 answers:
Anna35 [415]3 years ago
8 0
ANSWER: A)

hope this helps have a great day!
Ivahew [28]3 years ago
5 0

Answer:

A. 3

Step-by-step explanation:

f(x) = 2x - 5

f(4) = 2(4) - 5

f(4) = 8 - 5

f(4) = 3

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5/1 + 1/7 this is how the problem is set up do I flip the 5/1 if so what method...
ziro4ka [17]
Use the fraction addition formula. \frac{a}{b} + \frac{c}{d}= \frac{(ad+bc)}{bd}

Substitute the numbers into the formula. 
a=5, b=1, c=1, d=7

\frac{5}{1}+ \frac{1}{7} =  \frac{12}{35}
8 0
3 years ago
Dylan bought 3 identical shirts online for a total cost of $71.83 including a flat rate of $7.99 for shipping. Drag numbers to c
Masteriza [31]

Answer:

Shirt #1

x = 63.84 - y - z

Shirt # 2

y = 63.84 - x - z

Shirt # 3

z = 63.84 - x - y

Step-by-step explanation:

First calculate the value of the 3 shirts as follows:

$ 71.83 - $ 7.99 = $ 63.84.

$ 63.84.

The general equation would be, where x is the value of shirt # 1, and the value of shirt # 2 and z is the value of shirt # 3:

x + y + z = 63.84, then for each shirt would be the following equations:

Shirt #1

x = 63.84 - y - z

Shirt # 2

y = 63.84 - x - z

Shirt # 3

z = 63.84 - x - y

For example, if we give values (always the sum of both under 63.84) to two shirts, x = $ 20, y = $ 30 then the value of shirt # 3 would be:

<em>z = 63.84 - 20 - 30 = $ 13.84</em>

6 0
3 years ago
A gopher lives in an underground burrow. It starts at a certain point, p, underground and digs straight down to triple its dista
saw5 [17]

Answer:

<-2

Step-by-step explanation:

4 0
2 years ago
What is the exact volume of this cone?
Studentka2010 [4]

Answer:

  (b)  80/3π in³

Step-by-step explanation:

The volume of a circular cone is given by ...

  V = 1/3πr²h . . where r is the radius (half the diameter) and h is the height

Your cone has r = 4 inches and h = 5 inches, so its volume is ...

  V = (1/3)π(4 in)²(5 in) = 80/3π in³

The volume of the cone is exactly (80/3)π cubic inches.

5 0
2 years ago
The radius of a circle is 2.9 in. Find the circumference to the nearest tenth.
ELEN [110]

Answer:

\bf \large 20 \: inches

Step-by-step explanation:

<h2>Given that :</h2>

  • The radius of a circle is 2.9 in.

<h2>to find :</h2>

  • Find the circumference to the nearest tenth.

<h2>formulas used :</h2>

  • circumference = 2 × π × r

where,

  • π = 22/7
  • r = 2•9 inches

<h2>explanation :</h2>

⟼ c = 2πr

⟼ c = 2 × 22/7 × 2•9 inches

⟼ c = 2 × 3•14 × 2•9 inches

⟼ c = 6•28 × 2•9 inches

⟼ c = 18•21 inches.

<h2>Round to the nearest tenth :</h2>

⟼ c = 18•21 inches

⟼ c = 20 inches

∴ circle circumference is 20 inches .

3 0
3 years ago
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