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3 years ago

Which list shows all the factors of 28?

Mathematics

2 answers:

vladimir1956 [14]3 years ago

8 0

Answer:

The answer is option B

Which is:

1,2,4,7,14,28

soldi70 [24.7K]3 years ago

4 0

Answer:

Hope this helps

Also its the second one

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The number 0.4 can be written as 4/10 so it is a rational number.

barxatty [35]

Answer:

yes because 4/10 is .4 so it is the rational number

6 0

3 years ago

Assuming that the equation defines x and y implicitly as differentiable functions xequals=f(t), yequals=g(t), find the slope o

Artist 52 [7]

Answer:

$\frac{-1}{18}$

Step-by-step explanation:

Given that x and y are implicitly as differentiable functions.

xequals=f(t), yequals=g(t),

$x^3+3t^2 =13,$

$2y^3-3t^2= 42$

we have to get value of x and y at t =2

$x^3+3(4) = 13\\x =1\\2y^3-12 = 42\\y^3 = 27\\y=3$

we have to find the slope of the curve at t=2

i.e. we have to find $\frac{dy}{dx}$

= $\frac{\frac{dy}{dt} }{\frac{dx}{dt} }$ at t=2

$x^3+3t^2 =13\\3x^2 \frac{dx}{dt} +6t = 0\\$ $2y^3-3t^2= 42\\6y^2 \frac{dy}{dt} -6t = 0\\$

Substitute the values of x and y and also t in these equations to get

$3(1)^2 \frac{dx}{dt} +6(2) = 0\\\frac{dx}{dt} =-4\\6(3)^2 \frac{dy}{dt} -6(2)= 0\\\frac{dy}{dt}=\frac{2}{9}$

Slope = $\frac{2/9}{-4}=\frac{-1}{18}$

5 0

2 years ago

Help with 42 and 45 please I need it due tomorrow

mariarad [96]

The answer to 45 is B it drops 7 degrees to noon til midnight

3 0

3 years ago

Write the log equation as an exponential equation. You do not need to solve for x. \log_9\left(2\right)=2x-1 log 9 (2)=2x−1

monitta

Answer:

$9^{2x-1} = 2\\$

Step-by-step explanation:

According to the law of logarithm;

$If \ log_ab = x\\a^x = b$

Given

$\log_9\left(2\right)=2x-1$

Comparing with the original expression;

a = 9, b = 2 and c = 2x - 1

Substitute into the result indicinal expression;

$9^{2x-1} = 2\\$

This gives the required exponential equation

7 0

3 years ago

I need the complete answer to this problem, please circle the final answer and what I should write

goblinko [34]

Answer:

$f(t) = 8400(1.0018)^{12t}$

2.22%

Step-by-step explanation:

$8400 is invested in an account earning 2.2% interest (APR), compounded monthly.

So, the value of the account after t years will be given by

$f(t) = 8400 (1 + \frac{2.2}{12 \times 100} )^{12t} = 8400(1.0018)^{12t}$ {Rounded to the four decimal places} (Answer)

Now, for t = 1 year, f(1) = $8586.67

So, the percentage of growth per year (APY) = $\frac{(8586.67 - 8400) \times 100}{8400} = 2.22$ % {Rounded to the nearest hundredth of percent} (Answer)

5 0

2 years ago