If rectangle is 8 feet long and (7+x) feet wide. what is the area of the rectangle in square feet?

Answers

Answer 1
Answer:

if the length is 8ft and the width is (7+x) then the area would be 56+8x, if x is unknown.


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Is this figure a parallelogram?
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The LCM of two numbers is 14 times their HCF. The sum of LCM and HCF is 600. If one number is 280, then find the other number.

Simplify each radical expression. Leave in radical form. Show your work

Answers

1. √45n^5 = √ 9 * √5 * √n^5 = 3 * n * n * √n * √5 = 3n^2√5n
2. √75 + √3 = √15 * √3 + √3 = √5 * √3 * √3 + √3 = 3√5 + √3
3. √7 (√14 + √3) = √7 * √14 + √7 * √3 = √7 * √7 * √2 + √7 * √3 = 7√2 + 7√3

I believe these are the solutions

Answer:

  • √45n^5
  • √(45n) ^(5)

Need the answers quick​

Answers

Answer:

a)x+67+67=180

x=180-134

x=46

b)2x+48=180

2x=180-48

2x=132

x=66

c)the value of the angle=180-(60+60)

=180-120

=60

each angle is 60;

x=x=4cm

x=4cm

d)180/3=60

x+20=60

x=30

e)70+40+x=180

x=180-110

x=70

y=4cm

f)45+45+p=180

p=180-90

p=90

g)if the remaining two angles are named y each ;

2y+24=180

2y=180-24

2y=156

y=78

then; y+24=n

78+24=n

n=102

h)180-112=68

p+68+68=180

p=180-136

p=44

i)180/3=60

180-60=t

t=120

A card is chosen from a standard deck of cards. What is the probability that the card is a king, given that the card is black ? A. 1/26 B. 1/13 C. 1/2 D.2/13 And I have another question. A drawer contains 12 brown socks, 8 white socks, and 2 blue socks. One sock is selected at random. What is the probability that the sock is blue, given that it is NOT brown? A. 1/4 B. 1/5 C. 1/10 D. 1/11. Thank you sorry i'm a noob at this.

Answers

EVERY probability question uses this formula.
You should memorize it.

Probability =
                         (number of ways it can happen the way you want it)
             divided by
                                 (total number of ways it can happen).

When a card is chosen from a standard deck of cards, it can turn out
in 52 different total ways.
If you're looking for a black king, there are 2 of those.
So the probability is

                                          2 / 52  =  1 / 26  =  about 3.85%

===============================

In the sock drawer . . .

-- There are 22 socks altogether.

-- What is the total number of ways you can draw a single sock ?
Normally it would be 22.  But the question says the one you draw is
definitely NOT brown.  So you can just toss the brown socks out of
the question entirely.  You're actually working with the total number
of ways you can draw one sock that is not brown.  There are 10 of those.

-- 2 of them are blue.

-- So the probability is . . .

                         2 / 10 = 1 / 5  =  20% .

There are 26 black cards in a deck of cards.

There is a King Of Clubs and a King of Spades.

So, given that the card is black, the chances of it being a King is: 

2/26 which is 1/13.

This can be proven:

P(Card Is Black (B)) = 26/52

P(Card Is King (K)) = 4/52

P(Card Is King And Black) = 2/52

P\left( K|B \right) =\frac { P\left( K\cap B \right)  }{ P\left( B \right)  } \n \n =\frac { \frac { 2 }{ 52 }  }{ \frac { 26 }{ 52 }  } \n \n =\frac { 2 }{ 52 } * \frac { 52 }{ 26 } \n \n =\frac { 2 }{ 26 } \n \n =\frac { 1 }{ 13 }

----------

Using Bayes' theorem and:

P(Brown Sock (B)) = 12/22

P(White Sock (W)) = 8/22

P(Blue Sock (L)) = 2/22

P(Not Brown Sock (N)) = 10/22

Had to use this to make sure I got the right answer. Second question was a tad confusing.

P\left( L|N \right) =\frac { P\left( L \right) * P\left( N|L \right)  }{ P\left( N \right)  } \n \n =\frac { \frac { 2 }{ 22 } * 1 }{ \frac { 10 }{ 22 }  } \n \n =\frac { 2 }{ 22 } * \frac { 22 }{ 10 } \n \n =\frac { 2 }{ 10 } \n \n =\frac { 1 }{ 5 }

A line has this equation: y= -9x-2Write an equation for the parallel line that goes through (2, -3).

Answers

Answer:

y = - 9x + 15

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 9x - 2 ← is in slope- intercept form

with slope m = - 9

Parallel lines have equal slopes, thus

y = - 9x + c ← is the partial equation

To find c substitute (2, - 3) into the partial equation

- 3 = - 18 + c ⇒ c = - 3 + 18 = 15

y = - 9x + 15 ← equation of parallel line

The width of a rectangle is (2x – 7)inches and its width is (x^2 – 5) inches. Find an expression for the perimeter of the rectangle.a. 2x^3 + 35
b. x^2 - 2x + 2
c. x^2 + 2x – 12
d. 2x^2 + 4x – 24

Answers

Answer:

(2x²+4x-24) in.

Step-by-step explanation:

.

the answer is D you’re welcome

Andrew purchased a car for $19,500 the value of tge car depreciates at a rate of 8.6% each year which equation models the value of andrew car y after x years

Answers

If the value depreciates 8.6%, it is 91.4% of what it was the year before. The value can be modeled by-


y = 19,500(0.914)^x