I need help ASAP . Brainlist will be given !!

Answer:

the circumference is the total distance round a circle but the are is a measure of a space or region inside the circle but circumference is around it

Answer:

x^2 +y^2 = 49

Step-by-step explanation:

The equation for a circle is

(x-h)^2 + (y-k)^2 = r^2  where (h,k) is the center of the circle and r is the radius

( x-0)^2 + (y-0)^2 = 7^2

x^2 +y^2 = 49

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Explanation:

The sine ratio involves the opposite side over the hypotenuse

For reference angle E, the opposite side is the unknown vertical side, which we'll call x for now.

The known leg is 99 and the known hypotenuse is 101. We'll use these two bits of info to find x. Apply the pythagorean theorem:

a^2 + b^2 = c^2

x^2 + 99^2 = 101^2

x^2 + 9801 = 10201

x^2 = 10201-9801

x^2 = 400

x = sqrt(400)

x = 20

The missing vertical side of the triangle is 20 units. Now we can apply the sine ratio to find sin(E)

sin(angle) = opposite/hypotenuse

sin(E) = 20/101

This fraction cannot be reduced further. This is because 20 = 2*2*5, and neither 2 nor 5 is a factor of 101.

Answer:

a,c,d

Step-by-step explanation:

The identities which are true is A,C, and D.

A trigonometric Identity is made of Trigonometric ratios, which help in solving Trigonometric Equations.

The identity

[tex]\rm= \dfrac{1- tan^2 x}{2tanx} \\\\\\\\rm= \dfrac{ cos^2 x - sin^2 x}{2 sin x cosx} \\\\\\= cos 2x/ sin 2x \\\\= \dfrac{ 1}{tan 2x}[/tex]

Similarly,

sin 8x = 2 sin4x cos 4x

And,

(sin x + sin 5x) / ( cos x +cos 5x) = tan 3x.

To know more about Trigonometric Identity

https://brainly.com/question/12537661

#SPJ2

the answer is A

5^-8 × 5^4= 5^-8+4

= 5^-4

= 1/5^4

Answer:

n=-20

Step-by-step explanation:

Answer:

n = -20

Step-by-step explanation:

n/-4 = 5

n/-4 (-4) = 5(-4)

n = -20

-20/-4 = 5

Answer:

3.7x1.2=3+0.7+0.6+0.34=4.44

Step-by-step explanation:

Answer:

y = -13

I like two step equations

Step-by-step explanation:

Equation :

18 = 5-y

Im just going to flip it around because it feels more comfortable

5-y = 18

Add y to both sides

5 = 18 + y

Subtract 18 from both sides

-13 = y

y = -13

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

[tex]18 =5 - y \\ y = 5 - 18 \\ y = - 13 \\ thank \: you[/tex]

Answer:2.7

Step-by-step explanation:trust me

Answer:

2.71-----------------

Answer:

DF≅YZ

angle R≅angle N

XW≅TH

angle M ≅angle C

new coordinate=(2,1)

new coordinate=(0,2)

Reflection:

new coordinate=(5,-6)

new coordinate=(1,4)

Last one is already done

Step-by-step explanation:

Answer: 37

Step-by-step explanation: 14 x 3 = 42

42 - 5 = 37

Q: You are shot out of a cannon at the fair. The equation y=-1/5 * (x+2) (x-28) models your flight path, where y is the height above the ground and x is the horizontal distance. Which of the following statements in the comments are true?

a) You reach a maximum height of 45 feet,

b) You will land 11.2 feet from the cannon,

c) The barrel of the cannon is about 11 feet above the ground.

d)At a point 13 feet from the cannon, you begin to descend.

A: When y = 0, x = 28

y’ = 0 at x = 13 where Y is max = 15^2 / 5 = 45

Hence a is true, b is false, c is false, d is false .

Answer:

Go to photo math thank me later

Step-by-step explanation:

dowload tha app on ur phone

Answer:

45% is greater than 5/13

Step-by-step explanation:

i hope this helps :)

Answer:

45% is greater.

Step-by-step explanation:

45% is greater because 5/13 as a percentage is roughly 38 percent which is smaller than 45%.

Answer:

$144

Step-by-step explanation:

Volume of the pyramid = 1/3BH

Base area B = 1/2 * 6 * 4

Base area B = 12 ft²

Height H = 4ft

Volume of the pyramid = 12 * 4

Volume of the pyramid = 48ft³

SInce 1 ft³ = $3

48ft³ = x

Cross multiply

x = 3 * 48

x = 144

Hence the cost of the sign is $144

Answer:

The following outlines a general guideline for factoring polynomials:

Check for common factors. If the terms have common factors, then factor out the greatest common factor (GCF).

Determine the number of terms in the polynomial. ...

Look for factors that can be factored further.

Check by multiplying.

GOODLUCK

Answer:

(2, 5)

Step-by-step explanation:

The longest side of the triangle will be the side with the coordinate (1,4) and (3,6) due the value of the distance between them;

Midpoint = (x1+x2/2, y1+y2/2)

X = 1+3/2

X = 4/2

X = 2

Y = 4+6/2

Y = 10/2

Y = 5

Hence the required midpoint (X, Y) will be at (2, 5)

Answer:

the equation is 150 + 25n

Answer:

depends what type of books you mean and the pace you can read so theres no right or wrong answer cause everyone is at different levels when it comes to reading

Answer:

weird answer but if it where only chapter books ill read 20

if it where regular books i would read 50

Answer:

subject?

Step-by-step explanation:

Step-by-step explanation:

you can look at the image.

Answer:

A) [tex]\frac{3}{8}[/tex] and 24

Step-by-step explanation:

The coefficients are simply the numerical values that are multiplying the variables.

Answer:

J

Step-by-step explanation:

It has an initial charge of 2.50 dollars so you have to pay that before you calculate your miles which is 2.65x. X = the amount of miles you plug into the equation.

Answer:

x^2+6x+9

Step-by-step explanation:

expand the expression

Answer:

4, 20, 2

Step-by-step explanation:

The relationship between x and y is multiplication by 4:

9*4 = 36

4*4 = 16

5*4 = 20

2*4 = 8

Answer:

hi!

your answer would be 4, 20, 2

hope this help! have a nice day/night/morning/afternoon

Step-by-step explanation:

Answer:

[tex]C = (1,0)[/tex]

[tex]E = (0.8,0)[/tex]

See attachment for C and E

Step-by-step explanation:

Given

[tex]O= (0,0)[/tex] --- Origin

[tex]CO = 1[/tex] --- distance of C to O

Solving (a): Plot point C

Calculate the coordinates of C using distance formula:

[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 -y_1)^2}[/tex]

Where:

[tex]O= (0,0)[/tex] ---[tex](x_1,y_1)[/tex]

[tex]C = (x,y)[/tex] -- [tex](x_2,y_2)[/tex]

[tex]d = CO = 1[/tex]

So, we have:

[tex]1 = \sqrt{(x - 0)^2 + (y -0)^2}[/tex]

[tex]1 = \sqrt{x^2 + y^2}[/tex]

Square both sides

[tex]1^2 = x^2 + y^2[/tex]

[tex]x^2 + y^2 =1[/tex]

For this solution, we assume y = 0

[tex]x^2 + 0^2 =1[/tex]

[tex]x^2=1[/tex]

Solve for x

[tex]x = 1[/tex]

So, the coordinates of C is: (1,0)

[tex]C = (1,0)[/tex]

Solving (b): Plot point E

We have that E is 4/5 closer to the origin.

This implies that, the ratio is:

[tex]m : n = 4/5:1/5[/tex]

Multiply by 5

[tex]m : n = 4:1[/tex]

So, E is at 4:1 between O and C

Calculate the coordinates of E using:

[tex]E = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})[/tex]

Where

[tex]O= (0,0)[/tex] ---[tex](x_1,y_1)[/tex]

[tex]C = (1,0)[/tex] --- [tex](x_2,y_2)[/tex]

[tex]m : n = 4:1[/tex]

[tex]E = (\frac{4*1 + 1 * 0}{4 + 1},\frac{4*0 + 1*0}{4 + 1})[/tex]

[tex]E = (\frac{4}{5},\frac{0}{5})[/tex]

[tex]E = (0.8,0)[/tex]

Answer:

210.6 [tex]in^{2}[/tex]

Step-by-step explanation:

Area of  bottom triangle = bh/2 = 9(7.8)/2 = 35.1

Measure of 1 lateral face = 13(9)/2 = 58.5

Total measure of all 3 lateral faces = 3(58.5) = 175.5

Surface area = 35.1 + 175.5 = 210.6 [tex]in^{2}[/tex]

Answer:

$31.43

Step-by-step explanation:

If you take 15% of 36.99 you get around 5.56. So all you have to do is subtract that from the original amount.