1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
My name is Ann [436]
3 years ago
10

Factorise the following algebraic expressions completely a. y4 −81 . x2 +10x +24

Mathematics
1 answer:
Ludmilka [50]3 years ago
3 0

y^4-81=(y^2-9)(y^2+9)=(y-3)(y+3)(y^2+9)\\\\
x^2 +10x +24 =x^2+10x+25-1=(x+5)^2-1=(x+5-1)(x+5+1)=(x+4)(x+6)

You might be interested in
Its 8:20, you add 175 minutes to the time. What time is it?
LenaWriter [7]

Answer:

12

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Will give correct answer brainliest
Sidana [21]
I’m pretty sure it’s x=10 because
8x + 50 = 130
So we would subtract 50 from both sides so it would be 8x = 130 - 50 then it would give us 80 so now we have 8x =80, now we will need to divide the 8 on both sides to get x, so 80/8 equals 10
6 0
3 years ago
A jewelry maker has 24 jade beads and 30 teak beads. What the the greatest number of necklaces she can make? How many beads of e
Darya [45]
Find the GCF of 24 and 30

  24                30
1×24              1×30
2×12             2×15
3×8               3×10
4×6               5×6

The common factors are 1, 2, 3, and 6

That means we can make 6 necklaces, each necklace with 4 jade beads and 5 teak beads. 

8 0
3 years ago
Read 2 more answers
The circumference of great circle of a hemisphere is 44 cm. find the total surface area of the hemisphere​
max2010maxim [7]

Answer:

I didn't know if you meant that the circumference of tje hemisphere was 44 or if the circumference of the cirkel in which the hemisphere exists is 44 but you rearrange the numbers.

Step-by-step explanation:

The formula for calculating a circumference is 2×pi×r, with r as tje radius of the cirkel. So in this instance we get 2×pi×r=44. r=44/(2×pi)=7.00 centimeters. The total surface area of a cirkel=pi×r^2=pi×7.00^2=154.06 meters squared. 154.06/2=77.03 meters squared (hemisphere is half of a cirkel)

6 0
3 years ago
The king comes from a family of 2 children. what is the probability that the other child is his sister?
stira [4]
The chance is 50% because if there are 2 children the probability would be 1/2 or 50%.
4 0
3 years ago
Other questions:
  • Three years ago, Jolene bought $750 worth of stock in a software company. Since then the value of her purchase has been increasi
    13·2 answers
  • What is $58 bill, 20% tip to the nearst cent
    15·1 answer
  • What is a 6% increase to $62,900
    12·1 answer
  • 3/8 x 2/3 pls I really need this
    12·2 answers
  • What is the equation of the graph?
    8·2 answers
  • How in the world do I do this can somebody help please.
    7·1 answer
  • 40•1/5•3+8÷2<br><br>Simplify the Expression
    12·1 answer
  • Jack popped some popcorn, but 3 of the 150 kernels did not pop
    7·1 answer
  • What is the difference in miles between Kay’s longest bike ride and her shortest bike ride?
    8·1 answer
  • All of the following cause soil degradation except?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!