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Ket [755]
3 years ago
8

Your bedroom ceiling is 10 feet high and is 2/3 as high as the living room ceiling. Write and solve and solve an equation to fin

d the height h of th living room ceiling
Mathematics
2 answers:
vfiekz [6]3 years ago
3 0
H=10+(10 1/3) is a correct equation. The answer should be h=13.33
Alisiya [41]3 years ago
3 0

\text{Let the height of the living room ceiling is h feet.}\\
\\
\text{Given that the bedroom ceiling is 10 feet high and this height is }\frac{2}{3}\\
\text{as high as the living room ceiling.}\\
\\
\text{So the equation that represents this situation can be set as:}\\
\\
\frac{2}{3}\ \text{of the height of the living room = Height of ceiling of bedroom}

\Rightarrow \frac{2}{3}(h)=10\\
\\
\Rightarrow \frac{2h}{3}=10\\
\\
\text{now to solve it, first we multiply both sides by 3. so we get}\\
\\
2h=30\\
\\
\text{now divide both sides by 2 to get}\\
\\
h=15

Hence the height of the living room ceiling is: 15 feet

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Video Example EXAMPLE 1 Find the linearization of the function f(x) = x + 1 at a = 3 and use it to approximate the numbers 3.98
Blizzard [7]

Answer:

  the linearization is y = 1/4x +5/4

  the linearization will produce <em>overestimates</em>

  the values computed from this linearization are ...

     f(3.98) ≈ 2.245

     f(4.05) ≈ 2.2625

Step-by-step explanation:

Apparently, you have ...

  f(x)=\sqrt{x+1}

from which you have correctly determined that ...

  f'(x)=\dfrac{1}{2\sqrt{x+1}}

so that f(3) = 2 and f'(3) = 1/4. Putting these values into the point-slope form of the equation of a line, we get the linearization ...

  g(x) = (1/4)(x -3) +2

  g(x) = (1/4)x +5/4

__

The values from this linearization will be overestimates, as the curve f(x) is concave downward everywhere. The tangent (linearization) is necessarily above the curve everywhere.

__

At the given values, we find ...

  g(3.98) = 2.245

  g(4.05) = 2.2625

4 0
3 years ago
2a. Determine the equation of the line connecting the points (0, -1) and (2, 3) *
Sauron [17]
First create the equation y=Mx+ B

B is the y intercept so when y = 0, B = -1.

Now we have y=Mx - 1

The slope is M. We can calculate this by using the formula M = (y2 -y1) / (x2 - x1)

Use the points (0, -1) and (2,3) for these values. So y2 = 3, y1 = -1, x2 = 2, x1 = 0

Plug them into the equation and solve

M = (3 + 1) / (2 - 0)
M = 4/2 = 2

Now we have the equation y = 2x - 1

Next to figure out if the points given are on the line you take the values and plug them into your equation like so: 4 = 2(-2) - 1

2(-2) - 1 does not equal 4 so this point does not fall on this line. Follow this same procedure for the next point given.
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3 years ago
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MrRa [10]
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4 0
2 years ago
Lowest common multiple of 12,18,56
Ira Lisetskai [31]

Step-by-step explanation:

12 = 2 × 2 × 3

18 = 2 × 3 × 3

56 = 2 ×2 × 2 × 7

Now

Common factor = 2

Remaining factor = 2 × 3 × 2 × 3 × 7

LCM = RF × CF

= 504

hence the lCM of 12 , 18 and 56 is 504...

...

8 0
2 years ago
Read 2 more answers
What is y= -2/5x-2 y=-4
MaRussiya [10]

Answer:

y=−4 and x=5

Step-by-step explanation:

y=−4;y=(

(−2)

5

)(x)−2

Step: Solvey=−4for y:

Step: Substitute−4foryiny=

−2

5

x−2:

y=

−2

5

x−2

−4=

−2

5

x−2

−4+

2

5

x=

−2

5

x−2+

2

5

x(Add 2/5x to both sides)

2

5

x−4=−2

2

5

x−4+4=−2+4(Add 4 to both sides)

2

5

x=2

2

5

x

2

5

=

2

2

5

(Divide both sides by 2/5)

x=5

Answer:

y=−4 and x=5

3 0
3 years ago
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