In a sale all items are reduced by 15%. A carpet now costs £15.30 per square metre. What was the price before the sale?

a

we have (-5-1;-3-2) so answer is A

I have attached the complete question.

Answer:

Mean; μ = 1.648

Standard deviation;σ = 0.8610

Step-by-step explanation:

From the image attached, we can see that the probabilities given under the p(x) column are;

0.091

0.334

0.408

0.166

Let's find out if these values give a probability distribution.

ΣP(x) = 0.091 + 0.334 + 0.408 + 0.166

ΣP(x) ≈ 1

Their sum is approximately 1 and they are all between 0 and 1. Thus, it is a probability distribution.

Mean is found by;

μ = ΣxP(x)

From the table attached, x = 0, 1, 2, 3

Thus;

μ = (0 × 0.091) + (1 × 0.334) + (2 × 0.408) + (3 × 0.166)

μ = 1.648

Standard deviation is given by;

σ = √[Σ(x - μ)²•P(x)]

σ = √[((0 - 1.648)² × 0.091) + ((1 - 1.648)² × 0.334) + (2 - 1.648)² × 0.408) + ((3 - 1.648)² × 0.166)]

σ = 0.8610

Answer:

The appropriate answer is "-5.8". A further solution is explained below.

Step-by-step explanation:

The given integers series is:

[tex]-12,-4,-11,-6,4[/tex]

As we know,

⇒  [tex]Mean=\frac{Sum \ of \ All \ Data \ Points}{Number \ of \ Data \ points}[/tex]

On substituting the values, we get

⇒             [tex]=\frac{(-12)+(-4)+(-11)+(-6)+4}{5}[/tex]

⇒             [tex]=\frac{-29}{5}[/tex]

⇒             [tex]=-5.8[/tex]

Answer:y=7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

-Area of square = 144 yd²

-Area of semi circle = 56.5 yd² (rounded to nearest 10th)

Step-by-step explanation:

Area of square = 12 × 12

= 144 yd²

r of semi circle= 12÷2= 6yd

Area of semi circle

[tex] = \frac{1}{2} \pi {r}^{2} \\ = \frac{1}{2} \times \pi \times {6}^{2} \\ = \frac{1}{2} \times \pi \times 36 \\ = 18\pi [/tex]

= 56.54866.....

= 56.5 yd²

Answer:

If you comment fractions I will do them!

Step-by-step explanation:

Across:

A = 46

E = can't see the fraction

H = 2111

I = 64

J = 29

L = can't see the fraction

P = 55005

R = can't see the fraction

S = 21

T = 49

U = 308

V =129

X = can't see the fraction

Y = 4008

Z = 15

BB = 375

EE = 65

FF = 16

GG = 64

Down:

B = 600

C = can't see the fraction

D = 316

G = can't see the fraction

H = can't see the fraction

K = 9520

L = 15010

N = 299

O = 59

Q = 518

T = 4116

U = 333

V = 1006

W = 189

AA = 55

CC = 71

DD = 56

Answer:

[tex] \tan( \alpha ) = \frac{ \sqrt{1 - { \cos( \alpha ) }^{2} } }{ \cos( \alpha ) } = \: \frac{ \sqrt{0.36} }{0.8} = \frac{0.6}{0.8} [/tex]

Answer:

parallel lines have the same thing on parallel sides a rectangle is parallel and perpendicular lines are I dont know search it up

Answer:

10 19/24, 4 9/16, 3 11/15

Step-by-step explanation:

15. 15 4/24 - 4 9/24 = 10 19/24

13. 8 3/16 - 3 10/16 = 4 9/16

17. 6 5/15 - 2 9/15 = 3 11/15

It could be nonsense without any more context…

But more likely than not, V is understood to be some set of numbers, in which case the statement "2 ∈ V" means "2 belongs to the set V".

Positive

A - y = 18.8x - 763

Should be right-

Answer:

Positive

y=18.8x-763

Step-by-step explanation:

Answer:

similar shapes of they are the same shape, but congruent if they if they are also the same size and shape

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

hdjxjdbdjdnekzneisbd

Answer:

1+1=2

Step-by-step explanation:

lol, i hope this helped.

brainliest please? :)

Answer:

2x + 1

Step-by-step explanation:

That person added everything together that was shown which is incorrect. You shouldn't add the 12x + 3 as that should be the end result. You add 3x + 3x + 4x + 2 to get 10x + 2. You then subtract that by 12x +3 which is 2x + 1

Answer:

what u did was multiply. 13×117=1,521

Step-by-step explanation:

I'm not sure if this is right

hope this helps :)

Answer:

57mm

Step-by-step explanation:

C=2(pi)(r)

C=2(3.14)(9)

C=56.52

rounding up, its 57mm

Answer:

shading,

Step-by-step explanation:

do shading to the fraction supposed to be, eg: 1\4 here we have four parts divided and 1 is to be shaded as it gives 1 out of 4 okay? or 2\8 here in 8 divided parts only shade 2 as it's given. I hope it's right!!

Answer:

16875cm³

Step-by-step explanation:

45x15x25= 16875cm³

plz mark me as brainliest.

Answer:

15 cm trust me its right because I've don't this question in school

Answer:

20

Step-by-step explanation:

6,460 divided by 323 = 20

Answer:

y = -2/6 x + 2

Step-by-step explanation:

the equation will be an the y=mx+b form. therefore we know the b will be a postive 2 because thatd where it lands on the y axis and the m is the slope which is rise over run which is a negative 2/6. therefore the equation is y = -2/6x + 2

Answer:

C/7 = 20

Step-by-step explanation:

Answer:

r=30

Step-by-step explanation:

r-24=6

r=6+24

r=60

Answer:

(6x - 7y)(6x + 7y)

Step-by-step explanation:

36x² - 49y² ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

36x² - 49y²

= (6x)² - (7y)²

= (6x - 7y)(6x + 7y)

Answer:

(6x + 7y)(6x - 7y)

Step-by-step explanation:

36x² - 49y²

= (6x)² - (7y)²

= (6x + 7y)(6x - 7y)

In this question we used the identity-

a² - b² = (a + b)(a - b)

Answer:

Use the website www.bartley.com !!! I has helped me a lot and its actual teachers/tutors who answer your questions in about 30 minutes :)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

y= 1/2x +8

hope this helps

Step-by-step explanation:

here .................

Answer:

Step-by-step explanation:

Total area:

Area of the stage:

Area of the closet:

Area to be painted:

Correct choice is A

Answer: I have no idea What u just said..

Step-by-step explanation:

Answer:

6ft

Step-by-step explanation:

we went over this in class