Simplify the following expressions.
8x + 6y + 5x + 4y

Answer:

3. Since it asked us to write question 3 in the from y=mx + c

m is the gradient

c is the intercept on y axis or where the line enters or cuts the y axis. This can be seen from the diagram. The line cuts the y axis at "9". (Check the diagram for this).

Now to find m.

Pick points on the line

Say (1,6) and (2,3)

Gradient = m = y2 - y1/(X2 - X1)

x1 = 1

y1 =6

x2 = 2

y2 = 3

Substituting into that formula

m = 3 - 6/2 - 1

m= -3/1

m= -3.

Since we've gotten what we need

y=mx + c

Y= -3x + 9.

4. 4x + 2y = 12

Rearranging by making y subject to suit the eqn...y=mx + c

you have

m is the gradient and c is the intercept.

2y = -4x + 12

Divide through by 2

y= -2x + 6

y=mx + c

By comparing...

m==gradient = -2

c== Intercept = 6

5). Doing the same thing we did above

-6x + 3y =21

Making y subject

3y = 6x + 21

Divide through by 3

y= 2x + 7

y=mx + c

m==gradient =2

c==Intercept =7.

Hope this helps.

Have a great day!

Answer:

5 and 7

Step-by-step explanation:

Answer:

∠5 and ∠7

Step-by-step explanation:

They both have the same lines that cross to create the angle. And, They are on the opposite sides of the two lines which means that they are vertical.

Hope this helps :)

Answer:

angle 2

Step-by-step explanation:

complementary angle to angle 1 is angle 2 because in complementary angle sum of two amgle is 90 degree and when we add angle 1 and angle 2 it gives us 90 degree since they are perpendicular.

Answer:

-7

Step-by-step explanation:

She lost 12 points, 3 * 4 = 12, and she gained 5 points, so -12 + 5 = 5 - 12 = -7

Answer:

-7

Step-by-step explanation:

Answer:

angle 3 and 4

angle 2 and 3

Answer:

its the 3rd and 4th one

Step-by-step explanation:

Answer:

v = 628.32 m³

Step-by-step explanation:

v = πr²h/3

v = π(20/2)²(6)/3

v = π(100)(2)

v = 628.318530718

Rounded

v = 628.32 m³

Answer:

variables is the correct answer

Answer:

ALL OF THE ABOVE

Step-by-step explanation:

An expression is a syntactic construct. It must be well-formed: the allowed operators must have the correct number of inputs in the correct places, the characters that make up these inputs must be valid, have a clear order of operations, etc.

It can be all of the above too. because everything is needed to make an expression.

Got this answer from Gauthmath. Awesome app in my opinion . If you want it download it from Play Store and App Store. You get answers from tutors.

Hope this helps.

edit:- I can't put the link here otherwise I would have showed you the correct anwer. :(

Answer:

A , C, D

Step-by-step explanation:

Check A:

8 - 3 + 4 + 21 = 30         30 > 10 , so they keep the ball

Check B:

30 - 7 - 8 - 12 = 3          3 < 10 , so they don't keep the ball

Check C:

2 + 16 - 5 - 3 = 10         10 = 10 , so they keep the ball

Check D:

5 - 2 + 20 - 1 = 22       22 > 10 , so they keep the ball

Check E:

20 - 3 - 13 + 2 = 6         6 < 10 , so they don't keep the ball

If my answer is incorrect, pls correct me!

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

-Chetan K

Answer:

8 = 2[(8 - 5) + 1]

Step-by-step explanation:

Hope this was the answer you were looking for.

Answer:

Step-by-step explanation:

The point that represents the data in the fourth column has the coordinates: (13, 9)

How many points would be shown on a scatter plot of these data?: 5

________________________________

1. If one batch of cookies requires two and half cups of flour. Then we'll have to multiply it into three and a half.

2 and half cups of flour = one batch of cookies

8 cups of flour = three batches of cookies

2. If eight kids get to go to the water park for $60. Do the same as i did on the first one. Just multiply them.

$60 = eight kids

So every kids has to pay $7.5 to go to water park.

$7.5 × 8 = $60

$195 = 26 kids

$7.5 × 26 = $195

________________________________

Answer:

7/8

Step-by-step explanation:

Volume=AH

A= Area of base

H= Height

So

Volume= 1/3/4*(1/2)

=7/8

Answer:

7/8

Step-by-step explanation:

Step-by-step explanation:

1) (x+2)(x+8)

2) (x+1)(x+20)

3) (x-2)(x-4)

Answer:

1) (x+2)(x+8)

2) (x+1)(x+20)

3) (x-2)(x-4)

Step-by-step explanation:

Answer:

Its A, no question

Answer:

5

Step-by-step explanation:

Verticle angles are the angles opposite of each side.

Answer:

I think only 5

hope this helps

have a good day :)

Step-by-step explanation:

if you have to choose more it would be 5 and 6

Answer:

X3

Step-by-step explanation:

6x3=18

5x3=15

4x3=12

Answer:

C. y = 1/2x + 5

Step-by-step explanation:

For A. and B. x to a power of something, if x is at a power of anything, like x^2 or x^3, then it is not linear.

For D. it doesn't even have x in it, so basically y equals a number.

C. is a linear equation, y = 1/2x + 5

Answer:

About 13.85

Happy learning!

--Applepi101

55ft²

Answer:

Solution given:

the surface area of a pyramid with a base area of 25 ft2 and lateral faces each with areas of 15 ft2

=base area *2 laternal faces area

=25+2*15=25+30=55ft²

Answer:

5(-4 - 32)/9 = -20˚C

Answer:

5(-4 - 32)/9 = -20˚C

Step-by-step explanation:

Answer:

Angle 1 : h

Angle 2 : k

Step-by-step explanation:

The value of n is 4. That means, the process is applied 4 times.

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

To encode a message,

James first replaces each letter within the message with its corresponding number, where A = 1, B = 2, · · ·, Y = 25, and Z = 26. Next, James multiplies each number by 3 and then subtracts 5, and continues this process a total of n times.

To find the value of n:

We use process inversely.

Let m be the given number.

For example,

m = 16

The inverse process;

add 5 and then divide by 3 until we get the whole number.

So, first time

(16 + 5)/3 = 21/3 = 7,

Second time applying process,

(7+5)/3 = 4.

And the corresponding letter is D.

And the value of n is 2.

Now, m = 367

Applying process inversely,

First time,

(367 + 5) / 3 = 124

Second time,

(124+5)/3 = 43

Third time,

(43+5)/3 = 16

Fourth time,

(16+5)/3 = 7

m = 205

Applying process inversely,

First time,

(205+ 5) / 3 = 70

Second time,

(70+5)/3 = 25

Third time,

(25+5)/3 = 10

Fourth time,

(10+5)/3 = 5

m = 853

Applying process inversely,

First time,

(853+ 5) / 3 = 286

Second time,

(286+5)/3 = 97

Third time,

(97+5)/3 = 34

Fourth time,

(34+5)/3 = 13

m = 1339

Applying process inversely,

First time,

(1339+ 5) / 3 = 448

Second time,

(448+5)/3 = 151

Third time,

(151+5)/3 = 52

Fourth time,

(52+5)/3 = 19

We applied the process 4 times.

Therefore, the value of n is 4.

To learn more about the multiplication;

https://brainly.com/question/19634536

#SPJ2

Answer:

680 eyes.

Step-by-step explanation:

160 · 3/8 = 60

60 aliens have 3 eyes. That means the other 100 aliens have 5 eyes.

60 · 3 = 180

100 · 5 = 500

500 + 180 = 680

Therefore, the 160 aliens have a total of 680 eyes.

Answer:

[tex]{ \bf{ - \frac{2}{5} x - 9 < \frac{9}{10} }} \\ \\ { \tt{ - 2x - 45 < \frac{9}{2} }} \\ \\ { \tt{ - 2x < \frac{99}{2} }} \\ \\ { \tt{x > - \frac{99}{4} }}[/tex]