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3 years ago

14

Is the domain of F(x)= 2 + 3^x all real numbers.....or all real numbers >0?

2 answers:

disa [49]3 years ago

8 0

The domain of 3^x is real and greater than zero for all real values of x.
Therefore dom F(x)=2+3^x is all real and greater than zero.
See graph of F(x) attached.

sasho [114]3 years ago

7 0

Focus on y=3^x first. The domain of this function includes all real numbers, positive, zero or negative. When complex numbers are considered, the domain includes complex numbers in additionl to all real numbers.

Thus, the domain of <span>F(x)= 2 + 3^x consists of all real numbers. Certainly F(x) is defined for negative x values.</span>

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Jo is 5cm taller than Kathy.Let j=jo height.Then? =kathys height.

xxMikexx [17]

Answer:

Kathy = J - 5 cm

Step-by-step explanation:

Jo = 5 + Kathy

Jo = J

Kathy = K

=> J = 5 + K

=> J - 5 = 5 - 5 + K

=> J - 5 = K

=> K = J - 5

So, Kathy's height is J - 5 cm

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4 years ago

4/7 x 3/7 x 2/7 simplified

stepan [7]

Answer:

24/7 or 3 3/7

Step-by-step explanation:

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A pair of pant and a t-shirt cost $25. If the pant cost $7.28 more than the shirt, how much did the pant cost?

Lena [83]

$16.14 =pants

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I hope that helped ..

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3 years ago

Find the area of the rug. DO NOT ROUND.<br><br> what is the area?

Mademuasel [1]

Answer:

$\frac{198}{7} \ \text{feet}^{2}$

<h3>Step-by-step explanation:</h3>

<u>Given:</u>

Diameter of rug = 6 feet

To find the area of the rug, we need to use the formula "πr² or π(D/2)²"

<u>Where:</u>

r = radius
d = diameter

Since we do not have the radius, we need to substitute the diameter in the formula "π(D/2)²" to determine the area of the rug.

⇒ $\pi (\frac{D}{2} )^{2}$

⇒ $\pi (\frac{6}{2} )^{2}$

⇒ $\pi (3 )^{2}$

⇒ $\pi (3 )(3)$

⇒ $9\pi$

Substituting "22/7" as π:

⇒ $9(\frac{22}{7} )$

⇒ $(\frac{198}{7} )$

When finding the area of ANY shape, do not forget to include the units.

⇒ $\frac{198}{7} \ \text{feet}^{2}$

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2 years ago

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