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
Vikki [24]
2 years ago
10

Use the FOIL method to check your answer from part A.

Mathematics
1 answer:
Olegator [25]2 years ago
4 0
First = x^2

Inner = -5x

Outer = +8x

Last = -40

It is correct!
You might be interested in
A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess
maxonik [38]

Answer:

Total weight of the wheat placed on 45th square will be = 1.26\times 10^{6}tons

Step-by-step explanation:

King rewarded the inventor of chess by giving grain of wheat on every square of the chess board. He places one  grain of wheat on first square, 2 on second, 4 on 3rd, 8 on 4th and so on.

In fact he places grains of wheat in a progression S = 1, 2, 4, 8, 16.........n terms where value of n is 64.

We can rewrite the progression as S = 2°, 2, 2², 2³,.........n terms (n = 64)

In a geometric progression we know the nth term = a(r^{n-1})

where a = first term of the series, r = common ratio, n = number of terms

Now we have to calculate the weight of all wheat placed on 45th square.

So we will put the values in the given formula 45th term =

1\times (2^{45-1}) = 2^{44}=1.76\times 10^{13}

Then the weight of wheat will be = 2.51\times 10^{9}pounds=1.26\times 10^{6}tons



7 0
3 years ago
What is one and one fourth times 30
n200080 [17]
1 1/4*30=37.5 because, first to make this easier to work with I like to turn the fraction into a decimal like so, 1/4=.25 because 1/4=.25 so 1/4=.25, so now we have 1.25*30=? What this is pretty much saying is that 30+(25% of 30)=? Which to solve this we just need to find how much 25% is of 30 which is .25*30=7.5 because 7.5*4=30 making it true that this is 25% of 30. Now what we have to do is take 30+7.5 (because we have a 1 infront of the 25% we add this instead of subtract it, if we had no whole number infront of the 30 and where solving this that way we would have to subtract instead of add) which adds up to be are end answer of 37.5.

Hope that this helps and makes sense, Enjoy!=)
6 0
2 years ago
Which expression is equivalent to 5b + 30?<br><br> A: b+6<br> B: 5b+6<br> C: 5(b+6)<br> D: 5(bx6)
Kryger [21]
The correct answer is C because when using distributive property it simplifies back to 5b+30
5 0
2 years ago
Read 2 more answers
Can you please tell me the answer I don't know ​
9966 [12]

Answer:

Twenty-eight billion five hundred forty-two million rupees

28,542,000,000 rupess

or, 28.542 × 10⁹ rupees

8 0
3 years ago
Solve for x.
xz_007 [3.2K]

Answer:

\displaystyle -2,66 ≈ x\:or\:0,66 ≈ x

Step-by-step explanation:

All work is shown above.

I am joyous to assist you anytime.

6 0
3 years ago
Other questions:
  • Mr. Flores charges $ 530 for car repairs to his credit card, which charges no interest if
    13·1 answer
  • Pls help me with this questions. Look at the image
    6·1 answer
  • 7:( 4 11 m)=56:3.2
    6·1 answer
  • Determine whether the given set S is a subspace of the vector space V.A. V is the vector space of all real-valued functions defi
    8·1 answer
  • What is the density of water? Remember for water 1g=1ml=1cm^3
    9·1 answer
  • In a group of 20 pupils, 2 play the flute only.
    6·2 answers
  • Which numbers have an absolute value of 2?
    6·1 answer
  • How does h
    8·1 answer
  • What's the slope of the equation y=-3/5x+4?
    7·2 answers
  • Point A is at (3, -8) and point B is at (7, 3). Point M is the midpoint of point A and point B.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!