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Alenkinab [10]
2 years ago
5

Given f(x)=-2x-1, solve for x when f(x)=-7

Mathematics
1 answer:
Svetlanka [38]2 years ago
5 0

Answer:

The answer is -15.

Step-by-step explanation:

1. 2x - 1

2. 2(-7) - 1

3. (-14) - 1

4. -15

By plugging in our x value, we are able to use PEMDAS to  multiply 2 and the value of x and then, we subtract 1 from the value we got from step 3 to get -15.

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This famous clock tower has a clock face with a diameter of 23 feet. What is the approximate area of this clock face
pashok25 [27]

Answer:

Therefore the approximate area of this clock face is 415.3 feet².

Step-by-step explanation:

Given:

Clock is of Circular Shape,

Diameter = 23 feet

Radius =r =\dfrac{diameter}{2}=\dfrac{23}{2}=11.5\ feet

To Find :

Area of Clock Face = ?

Solution:

Area of Circle having Radius 'r' is given as,

\textrm{Area of Circle}=\pi r^{2}

Substituting the values we get

\textrm{Area of Clock Face}=3.14\times (11.5)^{2}=415.265=415.3\ feet^{2}

Therefore the approximate area of this clock face is 415.3 feet².

7 0
3 years ago
Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-
coldgirl [10]

Answer:

c is all the points in the open interval (0,25)

Step-by-step explanation:

Here given is a function

f(x) =x, which is continuous  in the interval [0,25] and differentiable in (0,25)

Mean value theorem says there exists at least one c in the interval (0,25) such that

f'(c) = \frac{f(25)-f(0)}{25-0}

We have

f(25)=25 and f(0) = 0\\f'(c) = 1

For the given function

f'(x) =1

Hence we have c equals all the points in the open interval (0,25)

7 0
3 years ago
Ahorras $15 por semana para comprar una de las bicicletas mostradas.
jeka94

Answer:

yo ocupo la misma respuestas

Step-by-step explanation:

la tienes o q? soy de higschool Ossining

7 0
3 years ago
Andrea spent two dollars to make 10 prints from the Photo Booth. Later she spent six dollars to make it 30 prints
schepotkina [342]
If your question is: How much is each print. The answer is 20 cents each
5 0
3 years ago
Pls help 42−6×4(12)3=
Nastasia [14]

Answer:

822

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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