hi -12 is less than -12.5 right? please answer quick

Answer:

x = -17/2

Step-by-step explanation:

2(x+13)=9

2x+26=9 (multiplying 2 with both the numbers)

2x=9-26 (shifting 26 on the other side of the equation changes its sign)

2x=-17

x=-17/2 (2 is in multiplication form, so shifting on the other size changes it into division)

Answer:

2 x x + 2x13=8

or,2x+26=9

or,2x=9-26

or,2x= -17

or,x= -17/2

so, x= -8.5

Step-by-step explanation:

First, you'd get the area of the circle, then multiply it by two (there's two ends to a cylinder)

so (pi)(R^2)

If 8 is the diameter, then 4 is the radius (r=1/2d)

3.14{pi}*16{4 squared}+=50.27

(50.27*2)= 100.54

Now, we need to find the area of the side of the cylinder. We have the given height of 16.8, and now we need to find the length. In order to do that, we must find the perimeter/diameter of the circle with the formula of Pi*Diameter.

if the diameter of the circle is 8, then 3.14*8=25.12.

25.12*16.8=422.016

now we need to add the area of the circles to get total surface area.

100.54+422.016= 522.556cm^2

I hope this helps!

The surface area of the given cylinder is 522.496 cm².

A cylinder is a three dimensional figure which is formed by two parallel circular bases joined by a curved surface.

Center of the two bases is joined by a line called the axis of the cylinder.

Total surface area of cylinder can be found by the total of area of circular bases and the area of curved surface.

Total surface area = Area of Circular bases + Area of curved surface

                               = 2π r² + 2π r h

where r is the radius of the circular base and h is the height of the cylinder. π is the pi constant with value 3.14

Here, r = 8/2 = 4 cm and h = 16.8 cm

Total surface area = 2πr (r + h)

                               = 2π × 4 (4 + 16.8)

                               = 8π × 20.8

                               = 166.4π

                               = 166.4 × 3.14

                               = 522.496

Hence the surface area of the cylinder is 522.496 cm².

To learn more about Cylinder, click on the link :

https://brainly.com/question/27853279

#SPJ2

Answer:

b. 40

Step-by-step explanation:

The value of x (exterior angle) is equal to half of the difference of given arcs

(100 - 20) ÷ 2 = 40

Answer:

x=7

Step-by-step explanation:

You know that the 17x+11 and 19x-3 are equal because they are corresponding angles. Then, you would solve it like an algebraic equation:

17x+11 = 19x-3

Move all the like terms onto one side.

14=2x

It would be easier to look at if moved the x onto the left so it would look like this:

2x = 14.

Then divide by 2 and your answer should be 7.

Answer:

- 13x² + 7x + 6

Step-by-step explanation:

- 4x² + 6 - (9x² - 7x) ← distribute by - 1

= - 4x² + 6 - 9x² + 7x ← collect like terms

= - 13x² + 7x + 6

Answer:

$3.13 after you add the tax.

Answer:

75

Step-by-step explanation:

When you have 100% of something, it's all of that one thing, right? So if you were to turn 100% into a decimal, it would be 1. This means you can divide any percentage by 100 to turn it into a decimal. So, 30%=.3. When you multiply something by 2, you get two of that thing, right? And just the same, when you multiply something by half, you get half of that thing. This means you can multiply 250 by .3 to get .3 of it, or, 30%.

250*.3=75

Answer:

Step-by-step explanation:

Mary gave some money to four of her nieces.

It was shared in proportion to their ages.

Jane

4

Heather

11

Laura

9

Kate

6

Kate's share is £1950.

Calculate the total amount Mary gifted her nieces.

lications of Mathematics

Answer:

A, D,F are triangle sides

Answer:

1

Step-by-step explanation:

slope is equal to "rise over run"

or = rise / run.

if you mean by  

a rise and a run of 4;

rise = 4 & run = 4,

then the slope is 4 / 4 = 1.

Answer:

The first blank is ‘the same’ the second blank is ‘proportional’

Step-by-step explanation:

how can i explain when the answer is already an explanation

Answer:

Step-by-step explanation:

it will be 59,000 because i add it all up

Answer:

2√5

Step-by-step explanation:

Answer:

sqrt(20)  (4.5)

Step-by-step explanation:

plug the coordinates into the distance formula to get the square root of 20.

Answer:

a) x = 5 and y = 2

b) x = 4 and y = 4

Step-by-step explanation:

Here, we want to solve the simultaneous equations by graphing

We shall be using an external graphing tool for this

The point at which the lines intersect represent the solution to the equation

please check attachment for the plots

For the first equation, we have the solution as;

x = 5 and y = 2

For the second, we have;

x = 4 and y = 4

i may be wrong but i think A. sorry if im wrong

Answer:

1-100>150

Step-by-step explanation:

Step-by-step explanation:

B

[tex]6x + 8y = - 2 \\ [/tex]

B is a multiple of A

[tex]3x + 4y = - 1 \\ if \: multiplied \: by \: 2 \\ = 6x + 4y = - 2[/tex]

and since the two systems A and B

have

[tex]2x + y = 5[/tex]

then the two systems have the same solution

Answer:

Step-by-step explanation:

[tex]24a-3(2a-5)=51[/tex]

Step 1: Let's solve first so we can order  it later.

[tex]24a-6a+15=51\\18a+15=51\\-15 -15\\\18a=36\\\\[/tex]

Divide 18 both sides.

[tex]a=2[/tex]

Ok so we have everything solved answer: a=2.

Now we need to order.

Step 1. Distribute 3.

Step 2. Combine like terms 24a and 6a.

Step 3. Subtract 15 from both sides.

Step 4. Divide both sides by 18.

Hope this helps :)

Answer:

False

Step-by-step explanation:

Proof: Habitat is an animals main living area you could say, enviornment is the areas they could choose otherwise known as nature.

Answer:

false

Step-by-step explanation:

habitat is where an animals stays

environment is where a population of animals stay

habitat- small amount of animals

environment- large amount of animals

Answer:

-3 I believe is correct. Tell me if I'm wrong

Step-by-step explanation:

Answer:

x=8

Step-by-step explanation:

Angle S and R are remote interior angles which means that they would add up to equal angle RQK.

78+5x-1=15x-3

Combine like terms

77+5x=15x-3

Add 3 on both sides

80+5x=15x

Subtract 5x on both sides

80=10x

Divide 10 on both sides

x=8

Answer:

C = 37.68 (using 3.14)

if you use a calculator you would get 37.69911184

Step-by-step explanation:

C = [tex]2\pi r[/tex]

C = 2(3.14)r

C = 6.28(6)

C = 37.68 (aprox)

Answer:

Step-by-step explanation:

Use Pythagorean's theorem. If the sides satisfies Pythagorean theorem, then, they form a right angled triangle.

The longest side is hypotenuse.

Hypotenuse² = base² + altitude²

10²  = 6² +8²

100 = 36 + 64

100 = 100

So, 6cm, 8cm, 10 cm makes an right angles triangle.

Answer:

D

Step-by-step explanation:

R(x) = -x^2+122x+400

Answer:

5

Step-by-step explanation:

√((5-2)^2 + (-3-1)^2) = √(9+16) = 5

Answer:

5 units

Step-by-step explanation:

To Find :-

Solution :-

Using Distance Formula ,

> d = √[ ( 1 +3)²+ ( 2-5)² ]

> d = √[ 4² + 3² ]

> d = √ [ 16 + 9 ]

> d = √25

> d = 5

Answer:

slope=0

Step-by-step explanation:

Answer:

the answer is c

Step-by-step explanation:

Answer:

(-2,4)

Step-by-step explanation:

When reflecting a point across y=x, the x-coordinate and y-coordinate switch places.

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

Explanation:

Point Q is located at (0,w). We see that x = 0 and y = w.

So we'll replace x with 0 and y with w. Then we solve for w.

2x+3y = -12

2(0)+3(w) = -12

0+3w = -12

3w = -12

3w/3 = -12/3

w = -4

In the second to last step, I divided both sides by 3 to undo the multiplication of 3. Saying 3w means "3 times w".

Side note: The point Q is the y intercept as this is the location where the diagonal line 2x+3y=-12 crosses the vertical y axis.

Answer:

Step-by-step explanation:

there u go!!