MATHEMATICS HIGH SCHOOL

Write the phrase as an expression. The difference of a number x and 6.4

Answers

Answer 1

Answer:

The expression that represents the phrase is x - 6.4

The given parameters are:

Number = x

Value = 6.4

In mathematics, difference means subtraction, and it is represented by the "-" sign

So, the difference of a number x and 6.4 is: x - 6.4

Read more about algebraic expressions at:

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Answer 2

Answer:

$\huge\text{Answer:}\n\n$

$\huge\mathrm{6.4-x}\checkmark$

$\huge\text{Solution:}$

The difference of two or more numbers simply means we subtract these numbers.

For example, the difference of 10 and 7 is 3.

Now, let's write the difference of x and 6.4 as an expression:

$\huge\mathrm{6.4-x}$ (Answer)

Hope you find it helpful.

Feel free to ask if you have any doubts.

$\bold{-MistySparkles^**^*}$

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During the first week of the year, Angelina's dad give her $10 and says that he will give her $10 more each week for the rest of the year. At the end of the year, how much money will Angelina receive from her dad? (Hint : 1 year = 52 weeks) Make a table to show the pattern, and explain your answer.

Miss Christina deposits her monthly salary $9000 in a bank which pays 7% interest compounded half yearly.How much will she get after 10 years? A.)18,122 B.)18,014 C.)17,908 D.)17,704

Answers

THe closest answer i got was 18122

Problem 3. if f(x) = /2x-5 and g(x) = 5x? -- 3, find (gºf)(x).(Step by step please<3)

Answers

(1)f(x) = x² - 4x + 2, g(x) = 3x - 7

(f o g) (x) = f(g(x)) = f (3x - 7)

= (3x - 7)² - 4(3x - 7) + 2

= (9x² - 42x + 49) + (-12x + 28) + 2

= 9x² - 57x + 79

(2)g(x) = -6x + 5, h(x) = -9x - 11

(g o h) (x) = g(h(x)) = g (-9x - 11)

= -6(-9x - 11) + 5

= 54x + 66 + 5

= 54x + 71

(3)f(x) = √(2x - 5), g(x) = 5x² - 3

(g o f) (x) = g(f(x)) = g(√(2x - 5))

= 5 (√(2x - 5))² - 3

= 5 (2x - 5) - 3

= 10x - 25 - 3

= 10x - 28

The product of three integers is −5. Determine all of the possible values for the three factors.

Answers

-1,1,5
-1,-1,-5
1,1,-5

Which of the following is a rational number?
Ο Α) π
B) 1.425
Oc) 50
OD) -4

Answers

B) 50 is rational number

OC:50 is the correct answer
Rational numbers are numbers that aren’t already expressed as a quotient or fraction.

Billy invests £800 for 5 years in a savings account.By the end of the 5 years he has received a total of £96 simple interest.
Work out the annual rate of simple interest.

Answers

Answer:

2.4%

Step-by-step explanation:

Simple interest (I) is calculated as

I = $(PRT)/(100)$

where P is the principal, R the rate of interest and T time in years

Here I = 96, P = 800 and T = 5, thus

96 = $(800R(5))/(100)$ = $(4000R)/(100)$ = 40R ( divide both sides by 40 )

R = $(96)/(40)$ = 2.4%

(Need ASP)Divide.

(4x3+2x+1)÷(x+1)

4x2−4x+6+5x+1

4x2+4x−6−5x+1

4x2−4x+6−5x+1

4x2+4x+6−5x+1

Answers

4x2+4x−6−5x+1 is the solution for (4x3+2x+1)÷(x+1)

What is Division?

A division is a process of splitting a specific amount into equal parts.

We need to solve,

(4x3+2x+1)÷(x+1)

We use Synthetic division, Synthetic division is a shorthand method for dividing a polynomial by a linear factor such as x + 3, and it's much simpler and faster.

Step 1: Set up the synthetic division.

Step 2: Bring down the leading coefficient to the bottom row.

Step 3: Multiply by the value just written on the bottom row.

Step 4: Add the column created in step 3.

We get 4x2+4x−6−5x+1.

To learn more on Division click:

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#SPJ2

Answer:

Step-by-step explanation:

(4x^3+2x+1)÷(x+1)

Using synthetic division is