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3 years ago

If f(x) = 4x - 20, what is f(4)? O A. -12 O B. 4 O C. 16 O D.-4

Mathematics

2 answers:

Anna11 [10]3 years ago

6 0

Answer:

the answer is d

Step-by-step explanation:

just plug in 4 into the equation:

f(4) = 4(4) - 20

f(4) = 16 - 20

f(4) = -4

Arlecino [84]3 years ago

3 0

The answer to your question is c

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According to the property √a/√b= √a/√b, which choice is equivalent to the quotient below?

garik1379 [7]

Answer:

Step-by-step explanation:

$\frac{\sqrt{125} }{\sqrt{5}} =\frac{\sqrt{25.5} }{\sqrt{5} } =\frac{5\sqrt{5} }{\sqrt{5} } =5$

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3 years ago

This is a picture of a cube and the net for the cube.

Nataliya [291]

Answer:

1196 mm^2

Step-by-step explanation:

That's really well described. All in all you have 6 squares all laid out flat. Each square has a side of 14 mm.

The area of 1 square = 14mm * 14mm = 196 mm^2

The area of 6 squares = 6 * 196 mm^2 = 1176 mm^2

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3 years ago

Simplify the following math expression: 5+4(6-3)+4/2

lesantik [10]

Answer:

you have to solve the brackets first(6-3=3)

Then solve the division (4/2=2)

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3 0

2 years ago

Read 2 more answers

A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square

Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

$\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}$

We have to find the rate of increase of length.

Area of rectangle =

$A = l\times w$

Differentiating we get,

$\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l$

Putting values, we get,

$8 = \dfrac{dl}{dt}(7) + (0.4)(10)\\\\\dfrac{dl}{dt}(7) = 8 -4\\\\\dfrac{dl}{dt} \approx 0.5714$

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

5 0

2 years ago

Select the correct scientific notation form of this numeral.

ioda

The scientific notation for the number 1063 is 1.063×10³ after using the concept of fraction option (B) 1.063×10³ is correct.

<h3>What is the number?</h3>

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that:

The number is 1063

As we know the scientific notation can be written as:

$\rm = A\times10^a$

1063 can be written as:

= 1063

= (1063/1000)1000

1.063×10³

Thus, the scientific notation for the number 1063 is 1.063×10³ after using the concept of fraction option (B) 1.063×10³ is correct.

Learn more about the number here:

brainly.com/question/17429689

#SPJ1

8 0

1 year ago