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3 years ago

What Does C equal in

Mathematics

2 answers:

mina [271]3 years ago

6 0

Square the entire thing which gets ride of the root so (8x+4)^2 now solve. 8x^2+4^2. 64x+16

vredina [299]3 years ago

5 0

Answer:

See below.

Step-by-step explanation:

We have the expression:

$\sqrt{8c+4}$

And we want to determine the domain restrictions of the expression.

Remember that the radicand (expression under the square root) must always be positive or 0. This is because we can't take the square root of a negative (and the square root of 0 is just 0). So, to find the domain restrictions, we can write and solve for the following inequality:

$8c+4\geq0$

This is saying (8c+4) must be greater than or equal to 0. In other words, it's positive or 0.

So, solve for c. Subtract 4 from both sides:

$8c\geq-4$

Now, divide both sides by 8. This yields:

$c\geq4/8\\c\geq -1/2$

So, our c must be greater than or equal to -1/2. If it is <em>less than</em> -1/2, we won't have a solution.

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A discuss moves from P1 (4,8) to P2 (15,17). What is the lincar displacement in the horizontal and vertical directions? What is

Yakvenalex [24]

Answer:

The horizontal displacement is 11 units, the vertical displacement is 9 units, and the projection angle is 39.3 degrees.

Step-by-step explanation:

We can start using the definition of displacement in one dimension between any 2 points which is the difference between them, so we have

$\Delta s = s_2-s_1$

And apply it to get the horizontal and vertical displacements.

Once we have found them, we can use trigonometric functions to find the projection angle with respect the horizontal.

Linear displacements.

Using the definition of displacement, we can write the horizontal displacement as

$\Delta x = x_2-x_1$

So we can use the given points $P1:(x_1,y_2) \text{ and } P_2: (x_2,y_2)$ on the displacement formula

$\Delta x = 15-4\\\Delta x = 11$

In the same manner we can look at the y components of those points to find the vertical displacement

$\Delta y = 17-8\\\Delta y =9$

Thus the horizontal displacement is 11 units and the vertical displacement is 9 units.

Projection angle.

The projection angle with respect the horizontal is the angle that is made between the line that connects the points P1 and P2 and the horizontal, so we can use the linear displacements previously found to write

$\tan(\theta) = \cfrac{\Delta y}{\Delta x}$

Solving for the angle we get

$\theta = \tan^{-1}\left(\cfrac{\Delta y}{\Delta x}\right)$

Replacing values

$\theta = \tan^{-1}\left(\cfrac{9}{11}\right)$

Which give us

$\theta = 39.3^\circ$

So the projection angle is 39.3 degrees.

7 0

3 years ago

Terms written in the form a/b are fractions. For example 2/3. If you see 3 1/2 it should be 3 and 1/2

aliina [53]

Answer:

7/2??

Step-by-step explanation:

Im not sure what you mean but 3 1/2 is the same thing as 7/2

5 0

3 years ago

Can you guys help me? please

mel-nik [20]

Answer:

3 square root 2.

Step-by-step explanation:

I think the answer is b (3 square root 2). the Pythagorean therom states that B^2+ B^2= C^2. we know that c squared is 36. 3 square root 2 is approximately 4.24. ( this squared is 17.98). 17.98 + 17.98 = 35.96. If i round this up, it is 36.

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3 years ago

Evan wants to leave an 18% tip for the serve at a resturant. Which expression does not show how to calculate the tip if b is the

Slav-nsk [51]

<span>The answer is B. B + 0.18B
This expression shows how to calculate the total bill, including tips</span>

8 0

3 years ago

Read 2 more answers

Solve:C=10d + 5n for n

katovenus [111]

$n = - 2d + \frac{c}{5}$
hope this helps

5 0

3 years ago