-12 - За = -3(a + 4)

Answer:

option 1

Step-by-step explanation:

the square root of 6 is 2.44949, rounded it's 2.4

the square root of 42 is 6.48074, rounded it's 6.5

in option 1 the 6 is placed after the 2 because it is point 4, not quite 2 but a bit bigger than 2 but less than 3.

same thing for 42, it is placed after 6 because it is not quite 6 but not over 7. i hope this helped

Answer:

3.4h

Step-by-step explanation:

Answer:

C      3.4 hours

Step-by-step explanation:

Answer:

The domain of f(x) is x>-2, so the range of f-1(x) is y>-2

The range of f(x) is y>-1, so the domain of the f-1(x) is x>-1

Step-by-step explanation:

To solve this question, we need to know the definition of domain and range.

The domain of a function is defined as all the possible input x-values while the range is defined as all the possible output y-values.

For f(x), domain for x is; x ≥ 1 and range is; y ≥ 2

For f⁻¹(x); domain is; x ≥ 2 and range is; x ≥ 1

We are given the function;

f(x) = [tex](\sqrt{x - 1} ) + 2[/tex]

Now, when x = 1, we will have zero inside the square root sign and this means that any x-value less than 1 will make the value inside the square root symbol to be negative which will result in an imaginary root.

Thus, we can say that, the domain for x is; x ≥ 1

Putting x = 1, we can find the least range value;

f(x) = 0 + 2

f(x) = 2

Thus, the range will be; y ≥ 2

Now, we want to find the range of f⁻¹(x)

This means an inverse of the original equation.

Thus;

f⁻¹(x) = [tex](x - 2)^{2} + 1[/tex]

Let's put x = 2;

f⁻¹(x) = (2 -2)² + 1

f⁻¹(x) = 1

Since x=2 gives the bracket to be zero, it means the domain is; x ≥ 2 and range is; x ≥ 1

Read more at; brainly.com/question/24522291

Answer: the first one is when you multiply it, the second is where you divide it

Step-by-step explanation:

Because they are different equations that are similar but one just uses multiplication and the other uses division.

Answer:

x=−6

Step-by-step explanation:

Let's solve your equation step-by-step.

3+5x=3x−9

Answer:

7

Step-by-step explanation:

f(x) = 2x2 – 1 and g(x) = x + 3,

f(g(-5))

First find g(-5)

g(-5) = -5 + 3

g(-5) = -2

Then substitute into f(x)

f(-2) = 2 ( -2) ^2 -1

      = 2 ( 4) -1

      = 8-1

     = 7

Answer:

14.76

Step-by-step explanation:

First find the length of the diagonal across the bottom using the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

12^2+5^2 = c^2

144+25 = c^2

169 = c^2

Take the square root of each side

sqrt(169) = sqrt(c^2)

13 = c

Then find the length of the diagonal across the  middle using the Pythagorean theorem

7^2 + c^2 = d^2

7^2 + 13^2 = d^2

49+ 169 = d^2

218 = d^2

Take the square root of each side

sqrt(218) = sqrt(d^2)

14.76482306 = d

To the nearest thousandth

14.76

Answer:

(m+ni)2=  -16 - 30i

2m + 2ni = -16-30i

.)2m=-16            .)2n=-30

m= -8                   n= -15

por lo tanto.....

m2 + n2

(-8)2 + (-15)2

-16 + (- 30 )

-16 - 30

-46

respuesta.....   - 46

Step-by-step explanation:

Answer:

34

Step-by-step explanation:

Given

(- 3 - 5i)(- 3 + 5i) ← expand using FOIL

= 9 - 15i + 15i - 25i² [ i² = - 1 ]

= 9 + 25

= 34

Answer:

I'm not sure if you're supposed to answer the question in numbers, i think you move the boxes "rational" and "irrational" in the rectangles provided below each question.

Answer:

234

Step-by-step explanation:

multiply 26 x 9

Answer:

328 metros

Step-by-step explanation:

Aquí, estamos interesados ​​en colocar un bucle alrededor de un campo de fútbol de la escuela de manera que sea imposible que alguien pueda acceder al campo.

Matemáticamente, la longitud de este bucle sería igual al perímetro del campo.

El perímetro del campo rectangular se puede calcular usando la fórmula; 2 (L + B)

En este caso tenemos; P = 2 (100 + 64)

P = 2 (164)

P = 328 metros La longitud del bucle es de 328 metros.

Answer:

They are 10 dollars a piece

Answer:

x=6

Step-by-step explanation:

you have to find the y value which should be 3 then subtract the x value. Which should be 6

Answer:

228

Step-by-step explanation:

12 times 19

Answer:

If your going to graph it , it would be x=3/2y+ -9/2

Step-by-step explanation:

Answer:

maybe it means how many shirts

Answer:

F= 65

Step-by-step explanation:

Hope it helps

Answer:

The answer for this question is. D

Answer:

D just read each of the selections very carefully and look for keywords like equals or more than, per..., and etc  pls mark me brainliest

Step-by-step explanation:

Answer:

63 100

Step-by-step explanation:

To convert the decimal 0.63 to a fraction, just follow these steps:

Step 1: Write down the number as a fraction of one: 0.63 = 0.63 1.

Step 2: Multiply both top and bottom by 10 for every number after the decimal point:

Answer:

7/11

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

-3/(-1)-(-1)

simplify this first

-3/(-1) + 1

Order of Operations : Division first

-3/-1 = 3 since negative ÷ negative = positive

3+1

=4

Hope this helps :)

.95 as a fraction would be 95/100

In simplest form this would be 19/20

Answer:

I got 0 or 18/5

Step-by-step explanation:

Answer:

see attached

Step-by-step explanation:

Answer:

no solution

Step-by-step explanation:

[tex]-2 ( x + 3) = -2 (x + 1) -4 \\-2x + 3 = -2x -2 -4\\-2x + 3 = -2x - 6[/tex]

add [tex]2x[/tex] to both sides

[tex]-2x + 3 + 2x = -2x - 6 + 2x \\3 = -6[/tex]

That's impossible

so the equation no solution

Answer:

All real numbers ( -∞ ,∞)

Step-by-step explanation:

          Simplify [tex]-2(x+3)[/tex]

          Apply the distributive property.

[tex]-2x-6=-2(x+1)-4[/tex]

          Simplify  

[tex]-2(x+1)-4[/tex]

[tex]-2x-6=-2x -6[/tex]

          Move all terms containing  x  to the left side of the equation.

          Add  2  x  to both sides of the equation.

[tex]-2x-6+2x=0[/tex]

          Combine the opposite terms in  

[tex]-2x-6+2x[/tex]

          add [tex]-2x[/tex] and [tex]2x[/tex]

[tex]0-6= -6[/tex]

[tex]-6= -6[/tex]

Since [tex]-6= -6[/tex] , the equation will always be true for any value of  x .  All real numbers

The result can be shown in multiple forms.

All real numbers

Interval Notation:

( − ∞ , ∞ )

Answer:

17 is your answer

Step-by-step explanation:

Answer:

17

Step-by-step explanation:

3(32-4+6) --> 102    &   (82+3) --> 85

102-85 =17

Step-by-step explanation:

Answer:

84%

Step-by-step explanation:

The mean has 50% below the mean and 50 % above the mean

The mean is 103.47

The standard deviation is 4.07

Add the mean and the standard deviation

103.47+4.07 = 107.54

We want to know how much data is below the mean plus one standard deviation

Within one standard deviation is 68% , but that is on both sides, we are  only needed on the right side so we need 1/2 of the 68 = 34

50+34 = 84

Answer:

6cm

Step-by-step explanation:

[tex]\sqrt[]{36} =6[/tex] Add the units, and there is your answer.

Answer:

(-6,-7)

Step-by-step explanation:

Apply the midpoint formula!