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kobusy [5.1K]
4 years ago
7

Which expressions below are equivalent to 43c+513 ? Select all that apply. □ A. 13(4c+16) □ B. 43(c+4) □ C. 13(33c+5) □ D. 23(2c

+8) □ E. 23(3c+5) □ F. 43(c+513)
Mathematics
2 answers:
Viktor [21]4 years ago
4 0
It's A because you need to distribute
Eva8 [605]4 years ago
4 0
None:

A. 13(4c+16) = 52c+208
B. 43(c+4) = 43c+172
C. 13(33c+5) = 429c+65
D. 23(2c+8) = 46c+185
E. 23(3c+5) = 69c+115
F. 43(c+513) = 43c+22,059

Hope that helps
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John buys 3 books that each cost the same amount and a magazine, all for $48.48. The magazine costs $1.98. How much does each bo
MakcuM [25]

Answer:

15.50 per book

Step-by-step explanation:

48.48 - 1.98 (the magazine)

46.50

46.50/ 3

15.50 per book

Hope this helps!!!

4 0
3 years ago
Find the approximate side length of a square game board with an area of 171 in?
Makovka662 [10]

<em>Greetings from Brasil...</em>

According to the statement of the question, we conclude that the area of a square is requested, whose value is 171 in²

The area of a square is given by the expression:

A = S²

<em>where S is the side of the square - just what we want to know</em>

So:

A = S²

171 = S²

√171 = S

<h3>S ≈ 13.08in</h3>
8 0
4 years ago
Help me with this please and thank you
Furkat [3]

Answer:

give me time i'll solve it

Step-by-step explanation:

8 0
3 years ago
SAT math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 114.
nadezda [96]

Hey there mate :)

Analysis :

401 = 515 - 114 = u - 6

And

173 = 515 - 3.114 = u - 36

=  \frac{p(u - 36 < u < u + 36) - p(u - 6 < u < u + 6)}{2}

=  \frac{99.73percent - 68.21percent}{2}

=  \frac{31.46percent}{2}

= {15.73percent}

Then, calculating,

u - 26 = 515 - 2 \times 114 = 287

And

u + 26 = 515 + 2 \times 114 = 743

Then,

The \: Range = (287,743)

Final Answers :-

<u>1</u><u>5</u><u>.</u><u>7</u><u>3</u><u> </u><u>%</u>

<u>(</u><u>2</u><u>8</u><u>7</u><u>,</u><u>7</u><u>4</u><u>3</u><u>)</u>

~Benjemin360

3 0
3 years ago
Using the quadratic formula to solve x2 = 5 – x, what are the values of x? StartFraction negative 1 plus-or-minus StartRoot 21 E
Snezhnost [94]

Answer: StartFraction negative 1 plus-or-minus StartRoot 21 EndRoot Over 2

Step-by-step explanation:

The given quadratic equation is expressed as

x² = 5 - x

Rearranging the equation to take the standard form of ax² + bx + c, it becomes

x² + x - 5 = 0

The general formula for solving quadratic equations is expressed as

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

a = 1

b = 1

c = - 5

Therefore,

x = [- 1 ± √(1² - 4 × 1 × - 5)]/2 × 1

x = [- 1 ± √(1 - - 20)]/2

x = [- 1 ± √21]/2

x = (- 1 + √21)/2 or x = (- 1 - √21)/2

3 0
3 years ago
Read 2 more answers
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