help me please ill give brainly

Answer:

The exact value of

cos90 is 0

sin90 is 1

tan90 is indeterminate.

Answer:

[tex] \cos(90) = 0 \\ \sin(90) = 1 \\ \tan(0) = 0[/tex]

Answer:

D. is not right triangle

Step-by-step explanation:

10²+ 49² = 2501 ≠ 50²

Answer:

(1,2)

Step-by-step explanation:

The solution to the system is where the two lines cross.

They cross at x=1 and y=2

(1,2)

Answer:

the area of the square is 1cm^2

Step-by-step explanation:

The computation of the area of the square is given below:

As we know that

Area of the square = side^2

Also in the square four sides are equal

So

= 1cm^2

= 1cm^2

hence, the area of the square is 1cm^2

Newton's law of gravitation says that the force due to gravitation between two objects with masses m₁ and m₁ is given by the formula

[tex]F=G\dfrac{m_1m_2}{r^2}[/tex]

Where r is the distance between the objects, and G is the gravitational constant (about 6.674×10⁻¹¹ m³⋅kg⁻¹⋅s⁻²)

Answer:

A = 2000.

Step-by-step explanation:

A = kB^2 where k is a constant to be found, so substituting:

500 = k * 10^2

100k = 500

k = 5.

So we have

A =  5B^2

When B = 20:

A = 5 * 20^2

= 5 * 400

= 2000.

Answer:

y=2x-2

Step-by-step explanation:

The slope-intercept form is known as y=mx+c

y= the y coordinate

m= the gradient/slope

x= the x coordinate

c= y intercept

The y intercept is when the line crosses the y axis. The graph shows the y intercept is (0,-2). This means our value of c is -2.

Now we must find the value of m. The value of m is the slope of the graph. I usually figure out the slope by doing the change in y / change in x (by counting along how many squares). The change in y is two squares up and the change in x is one square along.

Therefore, the gradient would be 2/1. This equals 2 (so m=2).

Now, we can easily substitute these values into the equation given earlier. Therefore, the equation would be y=2x-2.

Answer:

4x-12

Step-by-step explanation:

just distribute the 2 over to the 2x and the -6. That means multiply 2, to everything in the parentheses. Hope that's helpful

The simplified form of the expression [tex](2x - 6)^2[/tex] is [tex]4x^2 - 24x + 36.[/tex]

To simplify the expression[tex](2x - 6)^2[/tex] expand the square.

The square of a binomial follows the formula:

[tex](a - b)^2 = a^2 - 2ab + b^2.[/tex]

The binomial is 2x - 6.

Applying the formula, we have:

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

Simplify each term:

[tex](2x)^2 = 4x^2[/tex]

[tex]2(2x)(6) = 24x[/tex]

[tex](-6)^2 = 36[/tex]

Substituting these simplified terms back into the expression:

[tex](2x - 6)^2 = 4x^2 - 24x + 36[/tex]

Therefore, the simplified form of [tex](2x - 6)^2[/tex] is [tex]4x^2 - 24x + 36.[/tex]

To learn more on Expressions click:

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Answer:

If it helps, sure. You shouldn't get in trouble if he didn't clarify, just make sure to show your steps and how you got your answer.

Step-by-step explanation:

Answer:

it depends

Step-by-step explanation:

I could be very committed,

im 15 in july my name is mercedes. and im bi, I skate and taken

if there is just supposed to be a one-word answer, I think it's

Answer:

3/12

Step-by-step explanation:

jayfeather friend me

Answer:

-1.9, 0.32, 2/3, sqrt5, 2pi

Step-by-step explanation:

Answer:

The answer is 3 dollars.

Step-by-step explanation:

4 + 3 + 3 = 10$

Answer:

The property is the water cycle

Given:

Point (7,12) is rotated 1260° counterclockwise about the origin.

To find:

The  x-coordinate of the point after this rotation.

Solution:

If a point is rotated 360 degrees then its coordinates remains unchanged.

If a point is rotated 180 counterclockwise about the origin degrees, then

[tex](x,y)\to (-x,-y)[/tex]

We know that,

[tex]1260^\circ=1080^\circ+180^\circ[/tex]

[tex]1260^\circ=3\times 360^\circ+180^\circ[/tex]

After [tex]3\times 360^\circ[/tex] rotation the coordinates of points remains same, i.e., (7,12). So, after that (7,12) is rotated 180° counterclockwise about the origin.

[tex](7,12)\to (-7,-12)[/tex]

The point (7,12) becomes (-7,-12) after rotation of  1260° counterclockwise about the origin.

Therefore, the x-coordinate of the required point is -7.

Answer:

39 miles

Step-by-step explanation:

We know that a cyclist travelled at an average rate of 13 miles per hour for 3 hours and are asked to how far she travelled in miles.

To solve, we need to take into mind that for three hours, the cyclist drove 13 miles per hour.

Meaning that for every hour, 13 miles were driven.

Therefore we need to multiply 13 by 3 to get our answer :

13 miles * 3hrs

39 miles

Step-by-step explanation:

The equation equation looks incomplete. However assuming it to be 212÷34.

This becomes a simple case of division. Now forming a world problem on this equation.

Consider there are 212 chocolates to be distributed among 34 children, such that each child gets equal number of chocolates. Find how many chocolate does each child got.

Simply divide 212 by 34 to get the answer =212/34

Answer:

B

Step-by-step explanation:

Answer:The answer is -4

Step-by-step explanation:-4+-5=-9

Answer:

-4

Step-by-step explanation:

your basically adding

Answer:

Step-by-step explanation:

3(x+2)=36

3x+6=36

3x=30

x=10

Answer:

3 (10+2)=36

Step-by-step explanation:

Hope this helps

Answer:

its #####

Step-by-step explanation:

first you have to##### and then you pls give me points because a need help with some stuff

-4(9r+10)+5(10r+7)

Multiply the first bracket by -4

Multiply the second bracket by 5

(-4)(9r)(-4)(10)

=-36r-40

(5)(10r)+(5)(7)

=-50r+35

-36r-40+50r+35

-36r+50r-40+35 ( rearranging)

14r-5

Answer: 14r-5

Answer:

This is really simple, the answer is 1r, or just r

Step-by-step explanation:

this can also be seen as 10r-9r

Answer:

m<x=60°

Step-by-step explanation:

180-40= 140

140-80=60

m<x=60°

Hope this helps! :)

Answer:

the answer is C

Step-by-step explanation:

hope this helps

Answer:

-79

Step-by-step explanation:

5ac-2b

5(-3)(5) - 2(2)

-75-4

-79

substitute values and then solve