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RoseWind [281]
2 years ago
10

Factorise fully the following: a) x² - 2x b) 6x^2+ 12x c) 3x^3- 9x d) 4x^2+ 28x^3

Mathematics
1 answer:
mezya [45]2 years ago
8 0

Answer:

a) x(x - 2)

b) 6x(x + 2)

c) 3x(x^2-3)

d)  (2x)(2x)(1+7x)

Step-by-step explanation:

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Name the denominator in:9
Liono4ka [1.6K]

Answer:

1

Step-by-step explanation:

The denominator in 9 is one. This also applies for all numbers without a denominator.

Hope this helps :)

5 0
3 years ago
Read 2 more answers
The equation y = 0.25x describes a proportional relationship between x and y. What is the constant of proportionality?
hoa [83]

Answer:

k = 0.25

Step-by-step explanation:

The standard equation of a proportional relationship is

y = kx ← k is the constant of proportion

y = 0.25x ← is in this form

with k = 0.25

8 0
2 years ago
How can I solve that problem
drek231 [11]

<u>What do we know so far</u>:

  • 2\frac{2}{3}laps in \frac{4}{15}hour  ⇒ \frac{8}{3}laps in \frac{4}{15}hour

  *we converted the number of laps into improper fractions

        2\frac{2}{3}  = \frac{8}{3}

<u>We want to know the number of laps in an hour</u>

  ⇒ so we must find the rate which ⇒ lap/hour

   lap/hour =\frac{8/3laps}{4/15hours} =\frac{8}{3}*\frac{15}{4}   =\frac{8}{4} *\frac{15}{3} =2*5=10laps/hour

<u>So William can run</u> ⇒ <u>10 laps in one hour</u>

Hope that helps!

8 0
1 year ago
Please help i am stuck
balu736 [363]

Explanation:

All of these are done the same way.

1. Set your compass to a distance slightly longer than the distance from the point to the line you want the perpendicular to.

2. Using the point as a center, draw an arc that intersects the line in 2 places. Consider those points to be "P" and "Q".

3. You can leave the compass as is, or set it to any other distance longer than half the distance between P and Q. Using this radius, and using P and Q as centers, draw intersecting arcs on the other side of the line from the original point. Consider the intersection of those arcs to be point "R".

4. A line through the original point and point R will be perpendicular to the line, as you want.

_____

In problem 1, the point and line are obvious.

In problem 2, the point is the vertex opposite the line of interest. (There will be 3 similar constructions.)

6 0
2 years ago
Can you form a triangle with the following segments 6,5,3?
LenaWriter [7]

Answer:

yes

Step-by-step explanation:

the sum of any two sides must be greater than the length of the remaining side in order to be able to form a triangle.

5+3=8

3+6=9

6+5=11

Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands/wear a mask when in public. Happy Holidays.

4 0
2 years ago
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