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4 years ago

Can someone please explain how to do c i thank you

Mathematics

2 answers:

juin [17]4 years ago

6 0

So imagine these are all things so u have
3pencils
4rulers
7erasers I say rubber cause I’m British
1 pencil
8 rulers
And 1 rubber

X and xsquared are two different things so you cant add them or subtract
And single numbers two

So add 3x squared to x squared (or 1 xsquared same thing) u get 4x squared

Then u minus 8x from 4x and get -4x
Then you subtract -7 from -1 and get -8
Then you write them together like 4x squared + -4x -8

There if u need any more help I’m open

maksim [4K]4 years ago

4 0

i) first you combine the like terms; 3x² and x², then 4x and -8x, then -7n and -1.

Then you would get 4x²-4x-8.

You then cannot simplify further. so your answer would be 4x²-4x-8.

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Complete the equation of the line through (-6,5) and (-3,-3)

lana66690 [7]

Answer:

y=-8/3x-11 is the equation of the line and the value of y

Step-by-step explanation:

Use point slope form m = y-y1/x-x1, or y-y1=m(x-x1)

Find the slope from the two points (-6,5) and (-3,-3)

m = y2-y1/x2-x1 = -3-5/-3+6 = -8/3

use one point say (-6,5) that passes through the line and the slope to form the equation y-5=-8/3(x+6) rearrange y= -8/3(x+6)+5

y=-8/3x - 48/3 +5 = -8/3x-16+5 = -8/3x-11

4 0

3 years ago

A cylinder container with a diameter 12 cm and height is 8 cm is three fifths full of seeds.The seeds weigh 3.52 oz/cup,And 1 cu

kvv77 [185]

The answer is I don’t really know how to explain it but trust me it’s B: 8.1

3 0

4 years ago

If x is the least common multiple of the set {6, 8, 12} and y is the greatest common factor

Anarel [89]

Answer:

Step-by-step explanation:

The least common multiple of {6,8,12} is 24. This can be intuitively figured by noting that any multiple of 12 is a multiple of 6 and that 12 is 1.5x larger than 8. That means we only have so multiple 12 by 2 and 8 by 3 for them to be equal. The GCF of {20,42,72} is 2 as the prime factorization of 20 is 2x2x5 and 42 is 2x3x7. That means even without having to check 72 (which is clearly even so 2 is a factor), we know that 2 is the greatest common factor that they could share. So X/Y = 24/2 = 12

8 0

3 years ago

The area of a rectangular wall of a barn is 48 square feet. Its length is 4 feet longer than twice its width. Find the length an

Aleks [24]

Answer
Length: 12 feet Width:4
Explanation
To get the area of a rectangle you times the length by the width
It says the length of the wall is 4 feet longer than TWICE it’s width since 12 times 4 is 48 and 12 is twice the amount of 4 plus 4 feet it fits the requirements of this question

3 0

3 years ago

6. 4x + 2y = 16<br> | 5x - 2y = 38

Zolol [24]

Answer:

1. Slope = -4.000/2.000 = -2.000

x-intercept = 8/2 = 4

y-intercept = 8/1 = 8.00000

2. Slope = 5.000/2.000 = 2.500

x-intercept = 38/5 = 7.60000

y-intercept = 38/-2 = 19/-1 = -19.00000

Step-by-step explanation:

Step 1 :

Pulling out like terms :

1.1 Pull out like factors :

4x + 2y - 16 = 2 • (2x + y - 8)

Equation at the end of step 1 :

Step 2 :

Equations which are never true :

2.1 Solve : 2 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Equation of a Straight Line

2.2 Solve 2x+y-8 = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line 2x+y-8 = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 8/1 so this line "cuts" the y axis at y= 8.00000

y-intercept = 8/1 = 8.00000

Calculate the X-Intercept :

When y = 0 the value of x is 4/1 Our line therefore "cuts" the x axis at x= 4.00000

x-intercept = 8/2 = 4

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 8.000 and for x=2.000, the value of y is 4.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.000 - 8.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

Slope = -4.000/2.000 = -2.000

Geometric figure: Straight Line

Slope = -4.000/2.000 = -2.000

x-intercept = 8/2 = 4

y-intercept = 8/1 = 8.00000

Processing ends successfully

Step 1 :

Equation of a Straight Line

1.1 Solve 5x-2y-38 = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line 5x-2y-38 = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 19/-1 so this line "cuts" the y axis at y=-19.00000

y-intercept = 38/-2 = 19/-1 = -19.00000

Calculate the X-Intercept :

When y = 0 the value of x is 38/5 Our line therefore "cuts" the x axis at x= 7.60000

x-intercept = 38/5 = 7.60000

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is -19.000 and for x=2.000, the value of y is -14.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of -14.000 - (-19.000) = 5.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

Slope = 5.000/2.000 = 2.500

Geometric figure: Straight Line

Slope = 5.000/2.000 = 2.500

x-intercept = 38/5 = 7.60000

y-intercept = 38/-2 = 19/-1 = -19.00000

Processing ends successfully

plz mark me as brainliest :)

4 0

3 years ago