Need help!!!!!! Very much stuck!

Step-by-step explanation:

Use formula:

Q12

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Answer:

Step-by-step explanation:

Here you go mate

Step 1

7+(42-5)-0  Equation/Question

Step 2

7+(42-5)-0  Simplify

7+37+(-0)

44+(-0)

44+0

Step 3

44+0  Add them

answer

44

Hope this helps

Answer:

Step-by-step explanation:

i can help

Step 1

7 + (42 - 5)- O  Simplifying

Step 2

7 + (42 - 5)- O  Follow PEMDAS operations

7+37-0

Step 3

7+37-0  Add and subtract

Answer

44

Hope this helps

Answer: x=-5/2

Step-by-step explanation:

1.add similar elements

-8x-20=0

2.add 20 to both sides

-8x-20+20=0+20

3.simplify

-8x=20

4. divide both sides by -8

-8x/-8 = 20/-8

5.simplify

x=-5/2

Answer:

617.5 mL

Step-by-step explanation:

You start with 950. You know that 35% evaporates so that means 65% remains. (100-35=65). Then you multiply 950 by 0.65(65% converted to a decimal) and you get 617.5 mL.

Answer:

y=5x+12 this is the answer to your question

Answer:

I believe the answer is 3\2

Step-by-step explanation:

PLZ THANK FIVE STAR AND GIVE BRAINLIEST:)

Answer:

23 in^2

Step-by-step explanation:

Answer: A

Step-by-step explanation: add all of them together

Answer:

-3

Step-by-step explanation:

the formula to find slope is y2 - y1 / x2 - x1 which is rise over run

(2) - (-2) / (2) - (6) = -3

Answer:

73

Step-by-step explanation:

course grade = (75 x 0.6) + (80 x 0.2) + (60 x 0.2)  

                       =  45 + 16 + 12

                        = 73

Answer:

60

Step-by-step explanation:

length * width * heigth so 4*3*5=60cm^3

Answer:

the volume is 60cm

Step-by-step explanation:

hope this helped :)

Answer:

Answer is (-2,-4). Place this on a line graph.

Step-by-step explanation:

The below straight line represents the graph of the equation with a y-intercept of -4 and an x-intercept of -2.

To graph the line with a y-intercept of -4 and an x-intercept of -2, we can plot these two points and then draw a straight line passing through them.

The y-intercept is the point (0, -4), which means the line intersects the y-axis at -4.

The x-intercept is the point (-2, 0), which means the line intersects the x-axis at -2.

Plotting these two points on a coordinate plane, we get below shown a straight line.

This straight line represents the graph of the equation with a y-intercept of -4 and an x-intercept of -2.

Learn more about the Lines here:

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A cube has 6 sides. Divide the surface area by 6 to get the area of one side:

13 1/2 /6 = 2 1/4

The area of one side is S^2

To fins the length of the sides find the square root of the area:

Side = sqrt(2 1/4)

Side = 1 1/2 cm.

Answer:

(1, 22)

(2, 18)

(3, 14)

(6, 2)

Step-by-step explanation:

all your numbers under x are basically saying "If x was (The number) what would y be?"

and if your equation is y = 26 - 4x that's saying "y is 26 - 4 times (the number)"

Answer:

m = 3/2

Step-by-step explanation:

Answer:

geometric, dividing by 3 every time

Step-by-step explanation:

Answer:

This is a geometric sequence and the common ratio is equal to 1/3

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Explanation:

The sequence is not arithmetic because the gap between 45 and 15 is not the same as the gap from 15 to 5

Note how

Showing that we dropped by 30 when going from 45 to 15, but then we dropped by 10 when going from 15 to 5.

This gap or jump must be the same to have an arithmetic sequence.

--------------------

This sequence is geometric though.

We can see that by dividing each term by its previous term

Each time we get the same result 1/3 after reducing. If we didn't get the same result each time, then this sequence wouldn't be geometric.

But since we do get the same result each time, this tells us that the common ratio is 1/3. Each new term is 1/3 that of the previous term

For instance,

term2 = (1/3)*term1 = (1/3)*45 = 15

Answer:

x = 1

Step-by-step explanation:

The factors of the given expression is as follows:

[tex]7x(x^2-1) -3(x^2-1)\\\\7x^3 - 7x - 3x^2 +3\\\\7x^3 - 3x^2 -7x + 3[/tex]

If we considered x = 1

So

7 - 3 -7 + 3 = 0

0 = 0

Hence, the factor would be x = 1

Given:

Subtract [tex]-7x^2+1[/tex] from  [tex]-2x^2-4x[/tex].

To find:

The result after subtraction.

Solution:

Subtract [tex]-7x^2+1[/tex] from  [tex]-2x^2-4x[/tex]. It canbe written as

[tex]-2x^2-4x-(-7x^2+1)[/tex]

Using distributive property, we get

[tex]=-2x^2-4x-(-7x^2)-(1)[/tex]

[tex]=-2x^2-4x+7x^2-1[/tex]

On combining like terms, we get

[tex]=(7x^2-2x^2)-4x-1[/tex]

[tex]=5x^2-4x-1[/tex]

Therefore, the required expression after subtraction is [tex]5x^2-4x-1[/tex].

Answer:

[tex](a) x^2-2x=x \times (x+2) \\\\(b) 6x^2+12x=2\times 3 \times x \times ( x + 2) \\\\(c) 3x^3 - 9x=3\times x \times (x^2 -3) \\\\(d) 4x^2 +28 x^3 = 2 \times 2 \times x \times x \times ( 1+ 7x)[/tex]

Step-by-step explanation:

To factorize, at first, do factorize all the terms then take the common terms out.

(a) [tex]x^2-2x[/tex]

This can be written as

[tex]x^2-2x= x\times x + 2 \times x[/tex]

Now, taking x commom from both the terms.

[tex]x^2-2x=x \times (x+2)[/tex]

(b) [tex]6x^2+12x[/tex]

[tex]=2\times 3 \times x\times x + 2\times 2 \times 3 \times x[/tex]

Now, taking [tex]2\times 3\times x[/tex] common from both the terms, we have

[tex]6x^2+12x=2\times 3 \times x \times ( x + 2)[/tex]

This is the required factorization.

(c) [tex]3x^3 - 9x \\\\[/tex]

[tex]= 3 \times x \times x \times - 9\times x \\\\ 3x^3 - 9x=3\times x \times (x^2 -3)[/tex]

This is the required factorization.

(d) [tex]4x^2 +28 x^3[/tex]

[tex]= 2 \times 2 \times x \times x + 2 \times 2 \times 7 \times x \times x \times x \\\\4x^2 +28 x^3 = 2 \times 2 \times x \times x \times ( 1+ 7x)[/tex]

This is the required factorization.

Sarah because she ate half of it and cole only afe 2 /5 which isn't even half So its B

Answer:

3.145 Hours

Step-by-step explanation:

37÷2=18.5

18.5×.17=3.145

It will take the tortoise to catch up with the hare 109 hours.

Given that,
A giant tortoise travels at 0.17 miles per hour and an arctic hare travels at 37 miles per hour. If The tortoise and the hare start out together and after half an hour the hare stops to take a rest. How long it takes the tortoise to catch up is to be determined.

Speed is defined as when an object is in motion, the distance covered by that object per unit of time is called speed.

Here,
Distance traveled by hare in half hour,
= speed * time
= 37 * 1/2
= 18.5 miles

Time is taken by the tortoise to catch up with the hare,
= distance / speed
= 18.5 / 0.17
≈ 109 hours

Thus, it will take the tortoise to catch up with the hare 109 hours.

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Answer:

This is a greatest common factor problem.

What is the greatest common factor of 18 and 30?

18 is 1 x 18: 2 x 9; 3 x 6

30 is 1 x 30: 2 x 15: 3 x 10; 5 x 6

Our greatest common factor is 6.

How many 6 inch boards can you cut from 18 and 30 inches.

18/6 = 3

30/6 = 5

Or, when you find the GCF, it's multiple is the number of boards at that length that can be cut.

Answer:

Twice ; c = 2a ; a = c/2

Step-by-step explanation:

Since the drawing area has been gridded, accurate calculation could easily be performed ;

Rope A occupies 5 boxes

Rope C occupies 10 boxes

Hence,

10 boxes for C / 5 boxes for A

Therefore,

Rope C is Twice the length of Rope A.

If length of Rope A = a ; length of Rope C = c

Then, a multiplication equation for the length of Rope C equals ; c = 2a

Division equation :

a = c/ 2

Answer:

x= 12.3

y=8.4

Step-by-step explanation:

Answer:

Following are the solution to the given question:

Step-by-step explanation:

Please find the attached file of the graph:

In the question by adding through 4, Y's value is the amount you now have that I choose 3 as x value. 3+4=7 So

If x=3, y=7, Then chose the value x  that is 4 and −6 When x=-10, y=-6

by putting the ruler value through each of them and draw a line, that extend the line to the graphical edge field.

Answer:

use cal and solve it's easy

Answer:

Step-by-step explanation:

Answer:

Answer:

she bought 15 roses

Step-by-step explanation:

because she already had 3 because she had 11 more dasies then roses then she bought 2 more bringing her to the grand total of 15