i need the answer fast ill give brainliest

y=___

Answer:

D

Step-by-step explanation:

What we have to do is to find the arc tan

x/2 = arc tan (-1)

tan is negative on the 4th and second quadrant

arc tan (-1) = 135 or 315

pi is 180 degrees

so we have;

135 is 3 pi/4

multiplied by the 2

= 6 pi/4 which is 3 pi/2

315 is 7 pi/4 which is same as 7 pi/2 when we multiply by 2

Answer:

the answer is d

Answer:

The last one.

1)0-9=-9

And a negative number is always smaller than a positive one

2)Negative number always smaller than positive

3)The smaller a negative number is, the closer it is to zero, so the greater it is

4)correct

Answer:

n+v= -8

Step-by-step explanation:

number=n; variable=v

n+v=-8

Answer:

21/2

Step-by-step explanation:

step 1: remove parentheses

10+1/2

step 2: calculate

21/2

(alternative forms: 10 1/2, 10.5)

Answer:

solo respondo esto por los puntos

Answer:

£208

Step-by-step explanation:

Given:

Height of solid box (h) = 20 cm

Width (w) = 80 cm

Length (l) = 10 cm

Cost of paint = £0.04 per cm²

Required:

Cost of painting the box

Solution:

✔️First, find the surface area of the box

Surface area = 2(l*w + l*h + w*h)

S.A = 2(10*80 + 10*20 + 80*20)

S.A = 2(800 + 200 + 1,600)

S.A = 2(2,600)

S.A = 5,200 cm²

✔️Find the cost of painting 5,200 cm² surface area of the box.

Cost of pianting 1 cm² = £0.04

Cost of painting 5,200 cm² = 5,200 × 0.04

Cost of painting the box = £208

Answer:

Step-by-step explanation:Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x1"   was replaced by   "x^1".

STEP

1

:

           x

Simplify   —

           3

Equation at the end of step

1

:

 33   x

 —— • —

 7    3

STEP

2

:

           33

Simplify   ——

           7

Equation at the end of step

2

:

 33   x

 —— • —

 7    3

STEP

3

:

Final result :

 11x

 ———

  7

Answer:

I think its 15^-7

Step-by-step explanation:

you can forget about the one and just look at the 15 and 7 which you get 15^-7

The fraction (1/15)⁷ can be written as 15⁻⁷ after using the properties of the integer exponent.

In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.

It is given that:

The number expression is:

= (1/15)⁷

As we know, from the definition of the integer exponent;  integer exponents are exponents that should be integers. It may be a positive or negative number.

After using the properties of the integer exponent:

= (15⁻¹)⁷

= 15⁻⁷

Thus, the fraction (1/15)⁷ can be written as 15⁻⁷ after using the properties of the integer exponent.

Learn more about the integer exponent here:

brainly.com/question/4533599

#SPJ2

Answer:

i don't understand what your asking, but i hope this helps

Step-by-step explanation:

the process of ascertaining the variable value that makes the equation true is called 'solving' the equation. An equation is a verbalization that two quantities are equipollent. For exp/example:. x + 1 = 4 betoken that when we integrate 1 to the unknown value, 'x', the answer is equipollent to 4

Step-by-step explanation:

Answer:

5,240 literate

1310 illiterate

Step-by-step explanation:

-ratio of literate : illiterate is 1:4

-add the numbers in the ratio (4+1=5)

-divide total population by 5 (6,550/5= 1,310)

-multiply the outcome by 4 to find the number of literate people (1,310*4=5,240 people)

-subtract the number of literate people from total population to find number of illiterate people (6,550-5,240= 1,310 people).

Answer:

Option 4

Step-by-step explanation:

Since k is greater than or equal to -7, the number line should be going in the right direction, along with the starting point being shaded.

Answer:

ANSWER: [tex]-7c^{2} -24c+50[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hope this Helps ;)

Answer:

f(x)=4^x+3

Step-by-step explanation:

ok annnnnd

Answer:

Given functions:

They have different y-intercepts, therefore the line to intersect y-axis at the same points is y-axis itself.

The equation is:

The graph is attached

---------------------------------------

Note. If the question is about the lines above separately, then the answer is following

The first line has y-intercept of 11, any line with same y-intercept is the answer:

For the second line the equation is:

Answer:

y = mx + 11, where m ≠ 1

For the second line the equation is:

y = mx - 6, where m ≠ -9

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test.

Answer:

3

3+3+27=33

Step-by-step explanation:

Answer:

so you would have to subtract and that would be 7=w

Step-by-step explanation:

Answer:

he will pay 11.28 dollars. I hope it helps!

Answer:

Your answer would be $11.28

Step-by-step explanation:

if you find 4% of 282 you would get 11.28 so therefore it is your answer.

Answer:

c=6

Step-by-step explanation:

6c±7=13±7c

6c-7c=-1c

7-13=-6

-1c=-6

-1c=-6÷-1c   to get the value of

Answer:

Step-by-step explanation:

Length (L)= 2x - 3 cm

Breadth (b) = x + 7 cm

Area of the rectangle

= L * b

= ( 2x - 3)(x+ 7)

= 2x(x + 7) - 3(x + 7)

= 2x² + 14x  - 3x - 21

=( 2x² + 11x - 21) cm²

hope it helps

Answer:

[tex]2x^{2}[/tex] + 11x -21 [tex]cm^{2}[/tex]

Step-by-step explanation:

Area of a rectangle = Length × Width

= (2x-3)(x+7)

Multiply 2x with x, 2x with +7, -3 with x and -3 with +7

= [tex]2x^{2}[/tex] + 14x - 3x - 21

= [tex]2x^{2}[/tex] + 11x -21 [tex]cm^{2}[/tex]

Step-by-step explanation:

First expression = 3y

second expression = 3 * 2 x

LCM = 3 * 2x * y = 6xy

Answer:

1) 2 > -3 > -5

Step-by-step explanation:

that is mathematically correct

Answer:

[tex]2x^{2}[/tex]

Step-by-step explanation:

Hope that helps!!!

-scsb17hm

Answer:

7 in., 9 in., 5 in.

Step-by-step explanation:

6+2>9 = incorrect

9+7>16 = incorrect

2+7>9 = incorrect

7+5>9 = correct

7+9>5 = correct

9+5>7 = correct

Basically two side lengths added together should be more than the number left out.

I hope this helps!

Answer: The length of the fence will be 150 feet

Step-by-step explanation:

The question is asking you to find the hypotenuse of a rectangle with a length of 120 feet and a width of 90 feet. To find the hypotenuse we will need to use the formula   a^2 + b^2 = c^2

120 feet will be a

90 feet will be for b  

this is because a and b are the two legs of the rectangle.

120^2 + 90^2 = c^2

14400 + 8100 = c^2

22500 = c^2

   c =√22500

 c= 150

Answer:

m=10

Step-by-step explanation:

–4.2 = –1.96(m − 10) + –4.2

–4.2=-1.96m+19.6-4.2

-19.6=-1.96m

m=10

Answer:

$333.138

Step-by-step explanation:

Given that:

Initial value = $500

% decrease in value per year = 7.8% = 0.078

Price after t years is given by :

P(t) = initial value(1 - 0.078)^t

Where, t = number of years

Price after 5 years :

t = 5

P(5) = 500(1 - 0.078)^5

P(5) = 500(0.922)^5

P(5) = 500 *0.666276668105632

P(5) = 333.138334052816

= $333.138

Answer: You'll have a quadrilateral with the following points

A diagram is posted below.

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

Explanation:

The given quadrilateral has four unmarked points. I'll add the point labels A,B,C,D such that

I started at the lower right corner and worked my way clockwise.

----------------

Let's shift the line y = x-2 up two units so that it moves to y = x

We'll need to shift every point of the quadrilateral up two units as well.

So we have these new point locations after the shifting has occurred.

----------------

Now we need to reflect over the diagonal line. The rule to reflect over the line y = x is as simple as swapping the x and y coordinates.

So we can say [tex](x,y) \to (y,x)[/tex]

A point like (-3, 5) moves to (5, -3)

We have these new locations

----------------

The last thing to do is to shift everything down 2 units. This is to undo the first step we did when we shifted everything up by 2 units.

Doing this leads to these locations

Check out the diagram below.