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Alex777 [14]
3 years ago
13

Which algebraic expression represents the phrase below? Four less than the product of twice a number and eight

Mathematics
2 answers:
Vanyuwa [196]3 years ago
7 0

Answer:

(2x)(8)-4.

Step-by-step explanation:

Let x represent the number.

We are asked to write an algebraic expression for the given phrase.

Phrase: Four less than the product of twice a number and eight.

Since our number is x, so twice the number would be 2x.

The product of twice a number and eight would be (2x)(8)

Four less than the product of twice a number and eight would be (2x)(8)-4.

Therefore, our required expression would be (2x)(8)-4.

murzikaleks [220]3 years ago
3 0
2(x-8)-4

Hope this helps!
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Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the net change in Michael’s accoun
gulaghasi [49]

Answer:

B

Step-by-step explanation:

5 0
4 years ago
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Find each percent decrease. Round to the nearest percent.<br> From 90 points to 45 points
MAVERICK [17]

Answer:

the nearest is 50%

Step-by-step explanation:

45/90 = 0.50 = 50%

8 0
3 years ago
The average of eight numbers is 56. When one of the numbers was left out, the mean decreased to 54. What number was left out?
lozanna [386]

Step-by-step explanation:

Given the average of 8 numbers = 56.

Then the Total sum of 8 numbers = 56 * 8

                                                        = 448.

Sum of 1st three numbers = 49 + 57 + 72

                                           = 178.

So, the total = 448 - 178

                    = 270.

Average of the other 5 numbers = 270/5

                                                      = 54.

Verification:

178 + 270 = 448/8

                = 56.

5 0
2 years ago
pls help ill give a hundred points. select the correct answer from the drop down menu A(1,3),B(5,3),and D(1,-2) are three vertic
tankabanditka [31]
<h2>Question ↷</h2>

A(1,3),B(5,3),and D(1,-2) are three vertices of rectangle ABCD the coordinates of vertex C are select from the drop down menu (5,2),(-5,1),(5,-2),(2, -5)

<h2>Answer↷</h2>

(5,-2)

<h2>Solution ↷</h2>

we know that,

the midpoint of the diagonals of a rectangle bisect each other,

so,

  • MP of AC = MP of BD

\huge \rightarrow \frac{x + 1}{2},\frac{y+ 3}{2} =  \frac{5 + 1}{2},\frac{3 - 2}{2}  \\

\huge \rightarrow \: x = 5 \:  \\  \huge \rightarrow \: y =  - 2

3 0
3 years ago
Which option equals tan 40°? Select all that apply.
AlladinOne [14]
Answers
(sin40)/(cos40)  and 
(cos50)/(sin50)

Explanations
Tangent is a trigonometric ratio given by,
tan = opposite/adjacent.
lets take,
x⇒adjacent
y⇒opposite
h⇒hypotenuse

tanФ=y/x
sinФ=y/h  and 
cosФ=x/h

(sinФ)/(cosФ) = y/h ÷ x/h
                      =y/h×h/x
                      =y/x
This shows that
(sinФ)/(cosФ) = tanФ

We also know that,
sinФ = cos(90-Ф). So,
sin40 = cos(90-40) =cos50

So therefore;

tan40 = (sin40)/(cos40) = (cos50)/(sin50)

4 0
4 years ago
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