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2 years ago

If 8n + 25 = 65, then n is a. 5. 648. less than of 45 is b. 10. C. 40.

Mathematics

2 answers:

Cerrena [4.2K]2 years ago

6 0

8n + 25 = 65

8n = 65 - 25

8n = 40

8n/ 8 =40/8

n = 5..

firstly I made 8n the subject of the formula by taking 25 to the other side which gives u 8n = 65 - 25and the reason why the sign changed chnged os because when send a number to the other side the sign changes and then i divided both sides by 8

Monica [59]2 years ago

5 0

8n+25=65
-25
8n=40
n=5 (answer choice a)

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Evaluate f(2) for the function f(x) = 3x² + 2x - 5.

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

If f(x)=3x-2,find f(8)-f(-5)

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To find both f(8) and f(-5), we will need to plug in their values for x and solve for each. Then, we can subtract them to find the final answer.

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f(8) = 3(8) - 2

f(8) = 24 - 2

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Finding f(-5):

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3 years ago

What is the value of i^n in if the remainder of n/4 is 2?

LekaFEV [45]

The value of ${i^n}$ is $\boxed{ - 1}$ if the remainder of $\dfrac{n}{4}$ is 2.

Further Explanation:

Given:

The remainder of $\dfrac{n}{4}$ is 2.

Explanation:

The sum of imaginary numbers and real numbers is known as the complex number.

The complex number can be expressed as follows,

$\boxed{z = a + ib}$

Here, a is the real part of the complex number and $\text{ib}$ is the imaginary part of the complex number.

$\sqrt{ - 1}$ can be denoted by i.

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The value ${i^3}$ can be obtained as follows,

$\begin{aligned}{i^3}&= {i^2} \times i\\&= - 1 \times i \\&= - i\\\end{aligned}$

The value ${i^4}$ can be obtained as follows,

$\begin{aligned}{i^4} &= {i^2} \times {i^2}\\&= - 1 \times - 1 \\&= 1\\\end{aligned}$

The value of ${i^n}$ is $\boxed{ - 1}$ if the remainder of $\dfrac{n}{4}$ is $2$ .

Learn more:

Learn more about inverse of the functionhttps://brainly.com/question/1632445.
Learn more about equation of circle brainly.com/question/1506955.
Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Complex numbers

Keywords: value, $i^ n$ , remainder, n/4, 2 quotient, divisor, complex number, imaginary number, real number, exponents, dividend, powers, -1, imaginary roots.

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3 years ago

Read 2 more answers

What multiplies to be -63 and adds up to be -2

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3 years ago