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
Tresset [83]
3 years ago
8

Question 3 of 10

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0
I think it’s B........
You might be interested in
A pound of rice crackers costs $2.88. Matthew purchased 1/4 pound of crackers. How much did he pay for the crackers.
dlinn [17]
So you know that a pound of rice crackers cost $2.88. You also know that Matthew bought 1/4 or 25% or 0.25 of a pound. This means that by multiplying 0.25 by $2.88, you can determine the cost.

0.25 x 2.88 = $0.72
Therefore, Matthew paid 72 cents or $0.72 for 1/4 pound of rice crackers
7 0
3 years ago
Read 2 more answers
Use the Binomial Theorem to expand each binomial (5x-4y)^3
jek_recluse [69]
You should know that:

(a+b)(a+b)(a+b)

=a(a+b)(a+b)+b(a+b)(a+b)

=a(a²+2ab+b²)+b(a²+2ab+b²)

=a³+2a²b+ab²+a²b+2ab²+b³

=a³+3a²b+3ab²+b³

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

If a=5x and b=-4y

(5x+(-4y))³

=(5x-4y)³

=(5x)³+3(5x)²(-4y)+3(5x)(-4y)²+(-4y)³

=125x³+3(25x²)(-4y)+15x(16y²)-64y³

=125x³+75x²(-4y)+240xy²-64y³

=125x³-300x²y+240xy²-64y³
5 0
3 years ago
Which statements are always true? Check all that apply.
Ann [662]

Answer:

A rectangle has four right angles, A triangle has 3 sides, A square has 4 equal sides

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Let r and s be the roots of x^2 - 6x + 2 = 0. Find (r - s)^2.
Sphinxa [80]

Answer: (r-s)^{2} = 28

Step-by-step explanation:

  • x^{2} -6x+9=-2+9
  • (x-3)^{2}=7
  • (x-3)= -\sqrt{7} or \sqrt{7} <-- there's no plus/minus sign.
  • (x-3) = -\sqrt{7}
  • x = 3 -\sqrt{7} <-- root.
  • (x-3) = \sqrt{7}
  • x = 3+\sqrt{7} <-- root.
  • [(3-\sqrt{7})-(3+\sqrt{7})]^{2}
  • (3-\sqrt{7} -3 - \sqrt{7})^{2} <-- don't forget to distribute the negative.
  • (-2\sqrt{7})^{2}
  • (4)(7)
  • 28
4 0
3 years ago
Help quick please with explain
Paul [167]

Answer:

20= v+9+( -16 )

20= v-( 7 )

27= v

Step-by-step explanation:

Adding a negative is the sane as subtracting. Add like terms. Add 7 to both sides. 27= v

8 0
2 years ago
Other questions:
  • How many sides of a polygon have if the sum of the measures of its angle is 2880?
    6·1 answer
  • Can someone please help solve these for me
    9·1 answer
  • Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that th
    8·1 answer
  • 2(4x+9)=8x+18 solve for x
    14·2 answers
  • Anton bought a new sofa that was originally $700 and used a coupon for 30%.
    7·1 answer
  • 5(x+4)&gt;2x-7 please help
    9·1 answer
  • Identify the initial amount and the growth rate of the following:<br> Y = 250 (1+0.2)
    15·1 answer
  • Janine has job offers at two companies. One
    12·1 answer
  • Please, can anyone help me with these questions? Thank you.
    15·1 answer
  • A ship is stationary at sea.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!