Please help... 12 points please thank you!

Answer:

ab=4c

Step-by-step explanation:

Since a and b are being multiplied, we can just right ab. Since 4 and c are being multiplied, we ca just right 4c.

Answer:

ab=4c

Step-by-step explanation:

Basically, if you see any variables that are together like that or numbers side by side with letters, it means it's just being multiplied! This doesn't however, work with numbers next to numbers. So for example:

Say you have a x b = 5 x 5c

It would be ab = 5 x 5c Because only letters get put next to each other. That's really the only way I know how to explain it. Have a great day and good luck!

Answer: B

Step-by-step explanation:

20x-13x-6+19

=7x+13

Answer:

h+w-11

Step-by-step explanation:

Answer:

H+W-11

Step-by-step explanation:

Answer:

2 7/8 hours

Step-by-step explanation:

Answer:

2hrs 12 mins

Step-by-step explanation:

5hrs = 5x = 1600  question asks us to find 680

2 1/2x + 680-640 =-x + 2.8hrs

2x + 40 = x + 2.8hrs

2x + 40 = 680

Then use the 2.8 to convert into hrs : minutes ie) 0.8 x 60

0.8  *  60 = 48 minutes

Then go back to  x  + 2.8hrs = x + 2hrs 48mins

2x + 48 = 60

2x + 48 = 60

2x+ 60 - 48  

x = 2:12 hours

Answer:

Area is 10.5

Step-by-step explanation:

We can use the trapezoid formula of

[tex]A = \frac{a+b}{2}h[/tex]

A = (2 + 5) / 2 * 3 = 3.5 * 3 = 10.5

or break it into a rectangle and a triangle (natural split by y axis).

A = 2 * 3 + 3 * 3 / 2 = 6 + 9 / 2 = 6 + 4.5 = 10.5

Answer:

10.5 units²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = OS = 3 , b₁ = OC = 5 , b₂ = SK = 2 , then

A = [tex]\frac{1}{2}[/tex] × 3 × (5 + 2) = 1.5 × 7 = 10.5 units²

Answer:

[tex]V=10x^2+35x+15[/tex]

Step-by-step explanation:

Given that,

Length = (2x+1)

Width = (x+3)

Height = 5

We need to find an expression for the volume of this cuboid . The formula for the volume of cuboid is given by :

[tex]V=lbh[/tex]

So,

[tex]V=(2x+1)\times (x+3)\times 5\\\\=(2x+1)\times (5x+15)\\\\=10x^2+30x+5x+15\\\\=10x^2+35x+15[/tex]

So, the volume of this cuboid is equal to [tex]10x^2+35x+15[/tex].

Answer:x=2

Step-by-step explanation:8x2=16 and 16 is greater than 10.. hope this helps and gets brainliest

Answer:

x > 2

Step-by-step explanation:

Given

x + 8 > 10 ( subtract 8 from both sides )

x > 2

Answer:

Should be 63 degrees

Step-by-step explanation:

I can't tell if that's one of your options.

Answer:

Step-by-step explanation:

( 0, 0) and (-3 , -2)

Slope = Change in y ÷ change in x

          [tex]= \frac{-2-0}{-3-0}\\\\=\frac{-2}{-3}\\\\=\frac{2}{3}[/tex]

Answer: =−4x+5

Step-by-step explanation: Hope this help :D

Answer:

-4x+5

Step-by-step explanation:

You have to add like terms together to simplify it.

-6x+2x=-4x

Answer:

Do you have a picture or something?

Step-by-step explanation:

Answer:

2/7 is the scale factor.

Step-by-step explanation:

All you have to do is get two sides that are equal to each other. Let's say Side SR and YX. 3 and 10.5. Do 3/10.5, which is 30/105, which simplified is 6/21, which again simplified is 2/7. So, the scale factor is 2/7.

Answer:

x= -2 y= -1

Step-by-step explanation:

To solve by Substitution you would make this equation equal to each other x+1=3x+5 from there you would solve for x subtract x on both sides. and subtracting 5 from both sides 2x= -4 then divide by 2 to get x by itself x=-2 since we now found what the value of x is you can now plug in x into one of the origunal equations and get your answer for y which is y=-1

Answer:

V = 540cm3 (E)

Step-by-step explanation:

Area of a square:

A = a2

Perimeter of a Square

P = 4a

Polygon diagonals of a square

q = √(2a2) = a√2

Side of a Square

a = √A

a = P/4

a = q / √2

Square Calculations

Calculate q, P, A | Given a

Given the length of a side calculate the diagonal, area and perimeter

q = a√2

A = a2

P = 4a

Calculate a, P, A | Given q

Given the diagonal length calculate the side length, perimeter, and area

a = q / √2

P = 4a

A = a2

Calculate a, q, A | Given P

Given the perimeter calculate the side length, diagonal, and area

a = P/4

q = a√2

A = a2

Calculate a, q, P | Given A

Given the area calculate the length of the sides, diagonal, and the perimeter

a = √A

q = a√2

P = 4a

Answer:

170

Step-by-step explanation:

Answer:

(-2,-1)

Step-by-step explanation:

The point (-2, -1) lies on the graph of  y=x²-5

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

The given function is y=x²-5

A relation is a function if it has only one y-value for each x-value.

We have to find the points which lies on the graph of  y=x²-5

The graph is a parabola which has vertex of (0, -5)

Let us find few points of function

When x=-2, y=-1

When x=0, y=-5

when x=1, y=-4

when x=2, y=-1

when x=3, y=4

when x=4, y=11

when x=5, y=20

Hence, the point (-2, -1) lies on the graph of  y=x²-5

To learn more on Graph click:

https://brainly.com/question/17267403

#SPJ2

Answer:

question wdym by links?

Step-by-step explanation:

Answer:

B if there is an N at the end or beginning of it, Not sure if it cut off or not.

Step-by-step explanation:

Well you would need to do 20(7) to get 140, then multiply that to N. I would say B because I'm assuming you're missing out on some part of it, if it is N at the beginning or end then it is B.

Answer:

No because they are not equal to each other.

Step-by-step explanation:

We can simplify 5/15=4/10 to this

1/3=2/5 They are not equal, and therefore don't form a proportion.

Answer:

The first one is a similie

second is a metaphor

Step-by-step explanation:

like ice means like a hatred glare

the hug is a a good thing thats

happens on a bad dat

Answer:

simile

the referee was angry

metaphor

they have a lot of love for each other

Step-by-step explanation:

please mark me branliest

Answer:

no worries :)

Step-by-step explanation:

Answer:-45

Step-by-step explanation:

Answer: B = 56 degrees

Step-by-step explanation: Complementary angles add up 90 degrees. So we will set both of the equations equal to 90 degrees and then solve from there.

6x+8+5x+21=90

1. Simplify 5x + 6x and 21 - 8

11x+13=90

2. Subtract 13 from both sides.

11x=90-13

3. Simplify 90-13 to 77.

11x=77  

4. Divide both sides by 11.

x = 77/11

​    

5. Simplify 77/11 to 7

 x=7

Now we have to take the value of x and substitute it back into B = (5x+21)

1. Substitute

B = (5(7)+21)

B = 35 +21

B = 56

HOPE THIS HELPS :)

Answer:

for the first one X=-5

for the second one it's a fraction so look at the picture

Answer:

20

Step-by-step explanation:

3.33*6= 19.98