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2 years ago

8x²y³ (3 is negative exponent) x = 4 y = 2

Mathematics

2 answers:

Dennis_Churaev [7]2 years ago

8 0

Answer:

8 x 16 x 8

64 x 16

1024 is .....

inessss [21]2 years ago

5 0

Answer:

16

Step-by-step explanation:

I will assume the expression is 8x^2y^-3

8x^2y^-3

(8*(4)^2)*(2^-3)

(8*16)*(1/2^3)

(8*16)*(1/8)

16

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Heights of women have a bell-shaped distribution with a mean of 159159 cm and a standard deviation of 55 cm. using chebyshev's

GarryVolchara [31]

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3 years ago

Suponha que uma variável assume os valores: 11 – 8 – 7 – a – 16 – 10 Determine a de modo que a média aritmética seja igual 11.

Elenna [48]

Answer:

a = 14

Step-by-step explanation:

The mean is the sum of the values divided by the number of values.

$\begin{array}{rcl}\text{Mean}&= &\dfrac{11 + 8 + 7 + a + 16 + 10}{6}\\\\\dfrac{52 + a}{6}& = & 11\\52 + a & = & 66\\a & = & 66 - 52\\& = & \mathbf{14}\\\end{array}$

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3 years ago

Nadia plans to paint her jewelry box. The box is shaped like a rectangular prism with the dimensions

Pachacha [2.7K]

Answer:

$132\ in^{2}$ is closest to the total surface area of the box

Step-by-step explanation:

we know that

The surface area of the box is equal to

$SA=2B+PH$

where

B is the area of the base

P is the perimeter of the base

H is the height of the box

we have

$L=7\frac{3}{4}\ in=\frac{7*4+3}{4}=\frac{31}{4}\ in$

$W=3\frac{1}{4}\ in=\frac{3*4+1}{4}=\frac{13}{4}\ in$

$H=3\frac{7}{8}\ in=\frac{3*8+7}{8}=\frac{31}{8}\ in$

Find the area of the base B

$B=LW$

$B=(\frac{31}{4})(\frac{13}{4})=\frac{403}{16}\ in^{2}$

Find the perimeter of the base P

$P=2(L+W)$

$P=2(\frac{31}{4}+\frac{13}{4}))$

$P=2(\frac{44}{4})=22\ in$

Find the surface area

$SA=2(\frac{403}{16})+22(\frac{31}{8})$

$SA=(\frac{403}{8})+(\frac{682}{8})$

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3 years ago

13. A map has a scale of 2 cm to 3 km.

Aleksandr [31]

Scale = 1cm:3km

Therefore area of lake = 81Km

1:3 = x:81

= 27:81

Therefore the area on map is 27cm

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3 years ago

Read 2 more answers

the data in the table below represents a linear relationship . what is the missing piece of data table and answer choices will b

Gennadij [26K]

C) 2

1) Given the table, let's find out that missing data picking 2 points (2,-10) and (6,-4)

Since we have the slope, let's work on finding the linear coefficient

plugging point (2,-10) into that:

y= mx +b

-10 =3/2(2) +b

-10 =6/2 +b

-10= 3 +b

-10-3 =b

b= -13

2) So the rule of that function is y= 3/2x -13

Plugging x= 10 we have

y= 3/2(10) -13

y=2

3) So the missing y-coordinate is 2.

3 0

1 year ago