Can someone please help me!!!!

Step-by-step explanation:

3x+2x=180

5x=180

x=36°

Answer:

Sine 3 books are for 60-

60/3

Rs20 (per book)

and 5 books for Rs 90-

90/5

Rs18 (per book)

Thus we can save 2Rs and 5 books for Rs 90 iscthe best buy

Answer:

explanation below

Step-by-step explanation:

f(x) = −3/2(x+1)(x−5) = -3/2 (x²-4x-5) = -3/2 (x²-4x+4-9) = -3/2 ((x-2)² - 9)

f(x) = -3/2 (x-2)² + (-3/2)*(-9) = -3/2 (x-2)² + 13.5

There are points to be referenced for the graph:

vertex (2 , 13.5)     axis of symmetry: x = 2

roots: (-1 , 0) (5 , 0)

-3/2 : curve downward

Answer:

x=16/5

Step-by-step explanation:

scale fator 16/20

4/5

4*4/5

16/5

Answer:

the line crosses the y-axis below the origin

Step-by-step explanation:

Answer:

2.56

Step-by-step explanation:

100%->23.86

15%-> 3.579

3.579+23.86=27.439(how much he needs to pay including tip)

30-27.439=2.561

                ≈2.56 (since we dont usually pay up to 3 d.p.)

Answer:

B

Step-by-step explanation:

Area of a triangle formula: 1/2bh

1/2*7*11 = 38.5 sq units

The value of area of a triangle with a base of 7 units and a height of 11 units is,

⇒ Area of triangle = 38.5 units²

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

Base of triangle = 7 units

Height of triangle = 11 units

We know that'

Area of triangle = 1/2 x Base x Height

Hence, We get;

The value of area of a triangle with a base of 7 units and a height of 11 units is,

⇒ Area of triangle = 1/2 x Base x Height

⇒ Area of triangle = 1/2 x 7 x 11

⇒ Area of triangle = 38.5 units²

Thus, The value of area of a triangle with a base of 7 units and a height of 11 units is,

⇒ Area of triangle = 38.5 units²

Learn more about the triangle visit;

brainly.com/question/1058720

#SPJ5

Answer:

373737373737373383847484

This equation is in the form y = mx + b and when a function

is written in this form, we know that it's a linear function.

Another way to tell that it's a linear function is

that the variable is raised to the first power.

Answer:

Yes.

The first has an area of 9, so each side is three.

The second has an area of 16, so each side is four.

Each side of the third square is given as 5.

So the triangle has sides of 3, 4, and 5.

3²+4²=5²

9+16=25

25=25 It works given the Pythagorean theorem.

Step-by-step explanation:

Yes.

The first has an area of 9, so each side is three.

The second has an area of 16, so each side is four.

Each side of the third square is given as 5.

So the triangle has sides of 3, 4, and 5.

3²+4²=5²

9+16=25

25=25 It works given the Pythagorean theorem.

Step-by-step explanation:

Given

f(x) = 5 / 2x - 1

f^-1( x) = ?

Let

y = f(x)

y = 5/2x - 1

Interchanging the roles of x and y we get

x = 5/2y - 1

2y - 1 = 5/x

2y = 5/x - 1

y = (5/x - 1)/ 2

f^-1(x) = ( 5/x - 1) / 2

Hope it will help :)

Answer:

This is nothing related to real life. The only thing is it helps with trigometry, programming shapes, and so on

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer: (0,2) and (0, -8)

Step-by-step explanation:

Answer: t1 = -34; t2 = -64; t3 = -94

d is the distance between numbers (d > 0)

we have:

t5 = t1 + 4d = -154

t9 = t1 + 8d = -274

we have the equations:

t1 + 4d = -154

t1 + 8d = -274

<=> t1 = -34

      d = -30

with t1 = -34 and = -30 => t2 = -34 - 30 = -64

                                          t3 = -64 - 30 = -94

Step-by-step explanation:

Answer:

s = negative23 ( -23)

Step-by-step explanation:

3(3 +2 ) - s = 3(5) - s

15 - (-23) = 38

hope this helped!

The answer for number 1 is 1.72. The answer for number 2 is 4.83.

So for number one, the first thing you need to do is determine how many sides are on the first shape. Since it is a pentagon, and one pentagon has 5 sides, then you use the following formula to determine the volume of a[tex]V = \frac {1}{4} \times \sqrt{5 \times (5 +2 \times \sqrt {5})} \times (10)^{2} \times 10[/tex] pentagon: [tex]\alpha = \frac{1}{4} \times \sqrt[]{5(5+2 \sqrt[]{5}) \alpha ^{2} }[/tex] And in this case, the area would be 1.72, because if you insert the side lengths, the equation would look like this: [tex]V = \frac {1}{4} \times \sqrt{5 \times (5 +2 \times \sqrt {5})} \times (10)^{2} \times 10[/tex] , which if you solve this equation, then you will end up with the answer of 1.72.

For number two, the first thing you need to do is determine how many sides are on the second shape. Since it is an octagon, and the prefix oct means 8, the number of sides on the shape is 8. If the perimeter is 64, and there are 8 sides, you can divide 64 by 8 to get 8. The equation to solve for the area should look like this: [tex]V = 2(1 + \sqrt{2}) \times s^{2} \times h[/tex]. Now all you need to do is insert the side lengths to the proper places. It should then look like this: [tex]V = 2(1 + \sqrt{2}) \times 8^{2} \times 8[/tex], after you solve the equation, you should end up with 4.83.

Answer:

[tex]d(n) = - ( {7}^{n - 1} )[/tex]

Answer:

You will pay $1.08 for a item with original price of $1.35 when discounted 20%

Step-by-step explanation:

Step-by-step explanation:

y = 2x

if x = 1 y = 2(1) = 2

if x = 2 y = 2(2) =4

Answer:

Pls. correct me if I'm wrong.

I hope it helps.

If you don't like it just ignire it. okay.

Answer: A

Step-by-step explanation: cant contain division by a variable in a polynomial

Answer:

H - 6x^7y^15

Step-by-step explanation:

Volume of a rectangular prism (box) is l x w x h

3x^2y^4 * 4x^2y^5 * 1/2x^3y^6

= 6x^7y^15

using quotient formula

Answer: x - 7/3

Step-by-step explanation:

I think thats the farthest you can go with this problem

Answer:

Let's simplify step-by-step.

3x−7^3

=3x−343

Step-by-step explanation:

Answer:

282.74334

Step-by-step explanation:

C=2πr=2·π·45≈282.74334

Answer:

13

Step-by-step explanation:

−2+3+4+2−(−3)−5+8

=1+4+2−(−3)−5+8

=1+6−(−3)−5+8

=1+9−5+8

=10−5+8

=5+8

=13

Answer:

a. An inscribed angle is 1/2 the intercepted arc. The intercepted arc is 68°. The measure of angle xyz is therefore 34°.

Answer:

34 degrees

Step-by-step explanation: