Factorise these expressions
a.
[tex] {x}^{2} + 20x + 19[/tex]
b.
[tex] {z}^{2} - 2z + 1[/tex]
c.
[tex]9(x - 1) - 3x[/tex]
​

Answer: D.

Step-by-step explanation:

48/2.15= d, so 2.15d=48

Answer:

18.18%

Step-by-step explanation:

The percentage of sweets in the bag that are yellow is as follows:

Let us assume the number of yellow sweets be x

So for number of blue sweets be 4x

And, the number of red sweets be 0.5x

So it could be written as

Blue Red Yellow

4        0.5    1

8        1        2

So for yellow, the percentage is

= 2 ÷ (8 + 1 + 2)

= 2 ÷ 11

= 18.18%

Answer:

12.7 is your answer

5 x 2.54 = 12.7

Answer:

Y Axis

Step-by-step explanation:

The y axis is the best so it reflects off of both sides of the best axis in the world.

Answer:

I dont understand the qustion? did you answer it?

Step-by-step explanation:

Answer:

$83,000

Step-by-step explanation:

because it said most likely

Answer: Make a chart that has 2 rows of 10 boxes each and copy this info below.

Step-by-step explanation: Good luck! :D

Packages - Sticks of gum

1 - 8

2 - 16

3 - 24

4 - 32

5 - 40

6 - 48

7 - 56

8 - 64

9 - 72

Answer: B.

Step-by-step explanation: 550 bass

Answer:

2067in

Step-by-step explanation:

19x26= 494

13x17=221

26x26x2=1352

494+221+1352=2067

Answer:

1. 37

2. 26

3. 26

Step-by-step explanation:

Subtracting 63 from 180, you find the linear pair, being 117 which helps find an angle in the lower triangle. The sum of all angles is 180, and to find 2, you subtract the known angles ( 180-(37+117)) which equals 26. Knowing the shape is a parallelogram, and the opposite sides are parallel, we can say 2 and 3 are congruent through the alternate interior angles theorem. 1 is found through applying the same theorem.

Answer:

5 + 5 =10

Step-by-step explanation:

it should have been 4 +6 = 10

.......................................................

I remember every thing it was so good j set ramp

9514 1404 393

Answer:

  y = 3x -8

Step-by-step explanation:

We assume you want the tangent to the parabola y = x² -3x +1 at the given point. The slope is found using the derivative of the function at that point.

  y' = 2x -3

At x=3, the slope is ...

  y' = 2(3) -3 = 3

The equation of the line through point (3, 1) with a slope of 3 is ...

  y -1 = 3(x -3) . . . .  use the point-slope form of the equation for a line

  y = 3x -9 +1 . . . . . eliminate parentheses, add 1

  y = 3x -8

Answer:

.85 or 17/20

Step-by-step explanation:

just use a calculator to solve

Answer:

[tex]m-23=185[/tex], with [tex]m[/tex] representing Max's original weight

[tex]m=208[/tex]

Max weighed [tex]208[/tex] pounds before he went on his diet

Step-by-step explanation:

plz mark me brainliest. ;)

Answer:

[tex]0.6875[/tex]  OR:  [tex]0.7[/tex]

Step-by-step explanation:

[tex]0.6875\\0.688\\0.69\\0.7[/tex]

Answer:

volume = 254.34 cubic inches

Step-by-step explanation:

r = diameter /2 = 6/2 = 3 in

h = 3 × r = 3 × 3 = 9

volume = pi× r^2 × h

I suppose your teacher want you to make a (a-b)^3 formula

Answer:

8 x^3 - 144 x^2 y + 864 x y^2 - 1728 y

Step-by-step explanation:

Answer:

Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles.[2]:1.1 It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.

Answer:

I am somewhat the same way I only like sour

Step-by-step explanation:

Answer:

C) 4,000

Step-by-step explanation:

I hope this helps :)

A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?

$12.84 or C

Have a great day! :)

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal  can be obtained by

[tex]diagonal = \sqrt{l^2 +b^2}[/tex]

[tex]diagonal = \sqrt{6^2+ 7^2} = 9.22m[/tex]

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

Answer:

"?" = 3

Step-by-step explanation:

The answer can be gotten by subtracting 4 from 7. The 4 is the exponent in (4a^4b), and the 7 is the exponent in 16a^7b. So:

7 - 4 = 3

Therefore, the "?" = 3

Hope this helps :)

Answer:

?=3

Step-by-step explanation:

Okay so with exponents, when multiplying exponents with the same base, you add them.

In your case, we have a^? * a^4=a^7 (this is the only part you need to solve)

so ?+4=7

?=7-4=3

Have a nice day!

Answer:

I think it is 5x+2y=41

Step-by-step explanation:

Answer: 110 Women !

Step-by-step explanation:

Call their numbers 4x to 5x.

Since there are a total of 198 people,

4x + 5x = 198

9x = 198

x = 22

so that there are

88 men and 110 women.

Answer:

-10

Step-by-step explanation: