All categories

3 years ago

Expand and simplify (x-7)^2

Mathematics

2 answers:

LenKa [72]3 years ago

6 0

Answer:

<h2><em><u>ᎪꪀsωꫀᏒ</u></em></h2>

x²-14x+49

Step-by-step explanation:

(x-7)²

=> x²+7²-2(x)(7)

=> x²+49-14x

=> x²-14x+49

ch4aika [34]3 years ago

6 0

Answer:

x² - 14x + 49

Step-by-step explanation:

Simplifying (x-7)²:

(x-7)²

= (x-7)(x-7)

= x(x-7) - 7(x-7)

= x² - 7x - 7x + 49

= x² - 14x + 49

<em>Hope this helps and be sure to have a wonderful time ahead at Brainly! :D</em>

You might be interested in

Help with #1 I can’t get it!!

drek231 [11]

Answer:

for number one, look at the screenshot attached, that should help

Step-by-step explanation:

7 0

3 years ago

The range of y=√x-5-1 is

Lady_Fox [76]

Answer:

[-1, ∞ )

Step-by-step explanation:

The use of parentheses is essential here. I am assuming that you meant:

y=√(x-5) - 1

Note that √(x-5) has the range [0, ∞ ). The domain is [5, ∞ ).

Thus, y=√(x-5) - 1 has the range [-1, ∞ )

6 0

4 years ago

Read 2 more answers

The price of p of an ice cream is 3.95 plus 0.85 for each topping t on the ice cream

Lunna [17]

Answer:

4.80

Step-by-step explanation:

add them up 4.80 dollars

5 0

3 years ago

Read 2 more answers

A stock was purchased at $15.75 per share, and sold at $19.25 per share.

BARSIC [14]

ANSWER:
B. $3.50

STEP BY STEP EXPLANATION:

We start out with buying the stock for $15.75 then sell it at $19.25. We need to find the difference.

Subtract $15.75 from $19.25

19.25 - 15.75 = 3.50

To check your work add $3.50 to $15.75

15.75 + 3.50 = 19.25

Hope this helps and please mark brainliest! : )

3 0

3 years ago

Afla un numar,stiind ca: a)jumatatea treimii lui este 25; b)sfertul jumatatii lui este 48; c)treimea sfertului sau,marita cu 17

aalyn [17]

Answer:

(a) 150

(b) 384

(c) 84

(d) 261

(e ) 480

Step-by-step explanation:

(a)

Let 'a' be a number such that the half of his third is 25; i.e.

$\dfrac{1}{2}\times(\dfrac{1}{3}a)=25\\\\\dfrca{1}{2\times3}a=25\\\\\dfrac{1}{6}\times a=25\\\\a=25\times6\\\\a=150$

Hence, the number is 150.

(b)

Let 'b' be the number such that the quarter of his half is 48 i.e.

$\dfrac{1}{4}(\dfrac{1}{2}b)=48\\\\\dfrac{1}{8}b=48\\\\b=48\times8\\\\b=384$

Hence the number is 384.

(c)

Let 'c' be the number such that the third quarter or, increased by 17 is 80.

$\dfrac{3}{4}c+17=80\\\\\dfrac{3}{4}c=80-17\\\\\dfrac{3}{4}c=63\\\\c=\dfrac{63\times4}{3}\\\\c=\dfrac{252}{3}\\\\c=84$

Hence, the number is 84.

(d)

Let 'd' be the number such that its triplet, reduced by 28 is 755

$3d-28=755\\\\3d=755+28=783\\\\d=\dfrac{783}{3}\\\\d=261$

Hence the number is 261.

Let 'e' be the number such that double his third, increased by 80 is 400.

$\\2\dfrac{1}{3}e+80=400\\\\\dfrac{2}{3}e=400-80=320\\\\e=\dfrac{320\times 3}{2}\\\\e=\dfrac{960}{2}\\\\e=480$

Hence, the value of the number is 480.

4 0

4 years ago