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3 years ago

What is the domain of this exponential function , y=7^x

Mathematics

2 answers:

DiKsa [7]3 years ago

6 0

Answer:

Hope this helped!!!

Step-by-step explanation:

Zielflug [23.3K]3 years ago

4 0

Answer: hope this helps

Step-by-step explanation:

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A fish tank is in the shape of a cuboid.

zalisa [80]

Answer:

Length = 0.8m

Breadth = 0.3m

Volume = 108litres = 108÷1000 = 0.108m³

Volume = l x b x h

0.108 = 0.8 x 0.3 x h

0.108 ÷ ( 0.8 x 0.3 ) = h

0.45 = h

6 0

3 years ago

Write a quadratic equation in standard form that has 5 3 and 7 3 as its roots. A) 9x2 − 36x + 35 = 0 B) 9x2 + 36x − 35 = 0 C) 9x

Serggg [28]

Answer:

Option A)

$9x^2 - 36x + 35 = 0$

Step-by-step explanation:

We are given the following in the question:

Roots of quadratic equation are:

$\alpha = \dfrac{5}{3}, \beta = \dfrac{7}{3}$

The sum of the roots and the product of the roots can be calculated as:

$\alpha + \beta = \dfrac{5+7}{3} = 4\\\\\alpha\beta = \dfrac{5}{3}\times \dfrac{7}{3} = \dfrac{5}{9}$

Standard form of quadratic equation:

$x^2-(\alpha + \beta)x+\alpha\beta = 0$

Putting values, we get,

$x^2 - 4x + \dfrac{35}{9} = 0\\\\9x^2 - 36x + 35 = 0$

is the required quadratic equation.

Thus, the correct answer is

Option A)

$9x^2 - 36x + 35 = 0$

5 0

3 years ago

What is the next term of the geometric sequence?<br> 5,20,80

PIT_PIT [208]

Answer:

320

Step-by-step explanation:

5x4=20, 20x4=80, so that means the sequence is just multiplying by 4. 80x4=320, which is your answer.

3 0

3 years ago

Read 2 more answers

Write the exponential equation for this scenario. Mike buys a car for $45,000.00. The cars value depreciates (loses value) at a

gladu [14]

Answer:

$A=45000(0.82)^t$

Step-by-step explanation:

Given data

P= 45,000

rate= 18%

Recall the expression for the compound interest

$A=P(1+r)^t$

Since we are talking of depreciation

$A=P(1-r)^t$

Substitute

$A=45000(1-0.18)^t\\\\A=45000(0.82)^t$

Hence the exponential function is

$A=45000(0.82)^t$

6 0

3 years ago

Write cubed root of x2 using a fractional exponent

SIZIF [17.4K]

$\sqrt[3]{x^2} = x^{ \frac{2}{3} }$

6 0

4 years ago