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3 years ago

AlI of the following are equivalent except ______.

Mathematics

1 answer:

ddd [48]3 years ago

8 0

Answer:

(5 - 5) x

Step-by-step explanation:

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What is the Answer For 4x y = -10

Katena32 [7]

Xy = -10/ 4
= -2.5
So, xy = -2.5

4 0

4 years ago

Create an exponential to describe $100 at 2% interest, compounded annually, for x years. y=100(.98)^x y=100(.8)^x y=100(1.2)^x y

zysi [14]

The exponential to describe $100 at 2% interest, compounded annually, for x years is $y=100(1.02)^{x}$

<h3>Solution:</h3>

Given that $ 100 at 2 % interest , compounded annually for "x" years

The formula for compound interest, including principal sum, is:

$A=P\left(1+\frac{r}{n}\right)^{n t}$

A = the future value of the investment/loan, including interest

P = the principal investment amount (the initial deposit or loan amount)

r = the annual interest rate (decimal)

n = the number of times that interest is compounded per unit t

t = the time the money is invested or borrowed for

Here in this sum,

P = $ 100

$r = 2 \% = \frac{2}{100} = 0.02$

number of years = x

Here given that compounded annually , so n = 1

Let "y" be the amount after "x" years

Substituting the values in formula we get,

$\begin{aligned}&y=100\left(1+\frac{0.02}{1}\right)^{1 \times x}\\\\&y=100(1+0.02)^{x}\\\\&y=100(1.02)^{x}\end{aligned}$

Thus the exponential to describe is $y=100(1.02)^{x}$

5 0

4 years ago

Bruno noticed today’s gasoline price at the local convenience store was advertised as $3.40 per gallon. This price is 15% above

Lisa [10]

Answer:

Last year’s price = $2.96

Step-by-step explanation:

Given:

Current price of gasoline = $3.40

Higher rate = 15%

Find:

Last year’s price

Computation:

Last year’s price = Current price of gasoline [100 / (100 + 15)]

Last year’s price = Current price of gasoline [100 / (115)]

Last year’s price = $3.40 [100 / (115)]

Last year’s price = 2.95652

Last year’s price = $2.96

3 0

4 years ago

Find the distance (A) for the bend of electrical conduit that is passing under the girder shown in the figure.?

Bumek [7]

Answer:

15 1/8"

Step-by-step explanation:

Adding the values

⇒ 9 3/4" + 2 1/8" + 3 1/4"

⇒ 13 + 2 1/8"

⇒ 15 1/8"

7 0

2 years ago

Find the difference 7/x^2-7x - 5/x^2-49

Ivanshal [37]

Rewriting the expression we have:
(7 / (x ^ 2-7x)) - (5 / (x ^ 2-49))
Rewriting the denominator:
(7 / (x * (x-7))) - (5 / ((x-7) (x + 7)))
(1 / (x-7)) * ((7 / x) - (5 / (x + 7)))
Rewriting we have:
(1 / (x-7)) * (((7x + 49) + (-5x)) / (x * (x + 7)))
(1 / (x-7)) * ((2x + 49) / (x * (x + 7)))
((2x + 49) / (x * (x + 7) * (x-7)))
Answer:
The difference is:
((2x + 49) / (x * (x + 7) *(x-7)))

4 0

4 years ago