easy math please help i'll mark brainliest

Answer:

look below :)

Step-by-step explanation:

The triangle below has a perimeter of 27\text{ cm}27 cm27, start text, space, c, m, end text.

What is the length of one side of the triangle?

All 333 sides are the same length.

Step-by-step explanation:

a)x + 4 + 2x +5

= x + 2x + 4 + 5

Answer:

Answer: D

Step-by-step explanation:

Let's just go through it.

No parallel sides A B C (if you believe the diagram) D F

Not regular (and no parallel sides) (if you believe the diagram) B C D F

No Lines of symmetry (that means that if you put a mirror on a line of symmetry) what you see as an image will be the same as what there is in front  of the mirror. C D F

Has a reflex angle. (Just to remind you, it is an angle greater that 180 but less than 360

That lets out everybody but D.

Answer: D

Step-by-step explanation:

1. C and G have one set of parallel sides, and E, H, and I have two sets of parallel sides so they can be ruled out.

2. Regular shapes have sides that are all the same length and angles that all measure the same. A can be ruled out in addition to I which was already ruled out.

3. B can be ruled out now.

4. The only one with a reflex angle (greater than 180 degrees) is D.

Answer:

well the height of the triangle would be 5, the base is 12. The area of a triangle is the height times the base divided by 2 so 12 times 5 = 60 divided by 2= 30.

Answer:

A=30

Explanation:

b Base

12

hb Height

5

Solution

A=hbb

2=5·12

2=30

I think is like this. >3

Answer:

15 hundreds = star

Step-by-step explanation:

Move 1 thousand into hundreds place with the 5 hundreds that were already there. 5 plus 10 =15. We just don't usually think of it like that because of place value.

Answer:

I guess the answer is or the ★=2

Step-by-step explanation:

because if u add like now add 2+5=7,which is 7 tens in both side or 3 the one of thousand like 3+2 u get 5 the one of hundreds so that is how i get 2

Answer:

429 meters

Step-by-step explanation:

half her maximum speed is 33 so multiply it by 13

Answer: it MIGHT be c cuz it goes down FASST then slows down a bit on the loop the fast cuz its gong down and then slows a bit

Step-by-step explanation:

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

Explanation:

At first the car isn't moving at all. This is at time 0. So this means the graph starts at the origin (0,0). Based on this alone, the answer is either choice B or choice C.

We can rule out choice C because the rates of change won't be constant to give those sharp straight lines. Instead, we have a gradual shift in speeds as the roller coaster progresses. So we'll have more of a curved shape as choice B shows.

Note that each time the car is going downhill, the speed goes up. On the flip side, as the car goes uphill, the speed goes down. So the direction of movement runs counter to the speed graph direction (one goes up, the other goes down).

Answer:

A

Step-by-step explanation:

Answer:

a. 6

b. 2

c. 1

Step-by-step explanation:

You can tell by looking at the Venn Diagram

Good luck!

Answer: -1.5, -1, -1/2, 1/4

Step-by-step explanation:

Answer:

-1.5, -1, -1/2, 1/4

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

8 = x

or

x = 8

Step-by-step explanation:

x – 3 = 5

x + -3 + 3 = 5 + 3

x = 5 + 3

(5 + 3 = 8)

x = 8

Answer:

x=8

Step-by-step explanation:

x-3=5

x-3+3=5+3

x=8

Answer:

So lets convert the fractions to improper:

3/2 and 9/4

And for it to be easier to plot, make them decimals (divide):

1.5 and 2.25

The step here is 0.125 (1/8 (the amount of lines between a number))

Plot:

1.5, is 1 1/2 and 2.25 is 2 1/4 on the number line..

Lets convert the fractions to improper:

1 1/2 = 3/2 = 1.5.

2 1/4 = 9/4 = 2.25.

3/2 and 9/4

And for it to be easier to plot, make them decimals (divide):

1.5 and 2.25

Therefore, 1.5, is 1 1/2 and 2.25 is 2 1/4 on the number line.

Learn more about number line here:

https://brainly.com/question/17797529

#SPJ6

Answer: A

Step-by-step explanation: As it is a data set that has been equally represented, it is ok to predict.

Answer:

50 being vertically opposite angle

Answer:

4/10

Step-by-step explanation:

Answer:

70000+1000+800+30

60000+1000+100+30

if its wrong i am sorry

Answer:

x-1

Step-by-step explanation:

Area= x^2+4x-5

Width= x+5

Area= Length*breadth

x^2+4x-5=length*x+5

Length=x^2+4x-5/x+5

Therefore, length= x-1

Answer:

x-1

Step-by-step explanation:

i got this problem on khan academy

Answer:

25.12

Step-by-step explanation:

the formula of a cone is pi r^2 * h/3

r = radius and h = height

the radius is 2 and the height is 3

and the question says use 3.14 instead of pi so

we have

3.14 * 2^2 * 6/3

2*2 or 2^2 = 4

3.14 * 4 * 6/3

6/3 = 2

3.14 * 4 * 2

4*2 = 8

and 8 * 3.14 is 25.12

Answer: 7x1.5=10.5

Step-by-step explanation:

Bc i know

Answer:

B

Step-by-step explanation:

false because you aren't exercising outside of school so your weight would most likely change.

Answer:

-1<-0.25

With -1>0.25 you have a negative(-1) and a positive(0.25) the negative will always be less than the positive proving the equation wrong

Moving onto -1<-0.25 this one is a little trickier because they both have a negative so this is where you look at the number line and see which number is closer to 0 and whichever number is is greater meaning this is the correct answer.

Answer:

[tex]5\frac{4}{9}[/tex]

Step-by-step explanation:

[tex]\frac{19}{9} + (-\frac{2}{9} ) + \frac{32}{9} = \frac{49}{9} = 5\frac{4}{9}[/tex]

Step-by-step explanation:

cot < B = BC/AC = 7/24

_____

Answer:

Positive

Step-by-step explanation:

Since x > 0 =  x is positive

Since y < 0 = y is negative

Product of positive and negative number is negative.

Therefore,

       xy = - xy

    - (xy) = -( -xy)

    - (xy) = xy              [since product of negative and negative is positive]