MATHEMATICS HIGH SCHOOL

Choose the correct product of (2x − 4)2.4x2 − 16
4x2 − 16x + 16
4x2 + 16
4x2 + 16x + 16

Answers

Answer 1
Answer: (2x – 4)(2x –4)

For binomials, follow the rule FOIL (first, outside, inside, last.)

4x^2 + -8x + - 8x + 16

4x^2 – 16x + 16
Answer 2
Answer:

Answer:

4x^2 – 16x + 16

Step-by-step explanation:

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A baby gains 11 pounds in its first year of life. The baby gained 4 1/4 pounds during the first four months and 3 1/2 in its second four months. How much did the baby gain in the last four months?A. 3 1/4lb

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Answers

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Solve the following system of equations algebraically:
y = x^2+7x−4
y = −x−4

Answers

y = x² + 7x - 4
y = -x - 4

x² + 7x - 4 = -x - 4
      + x       + x
x² + 8x - 4 = -4
           + 4  + 4
     x² + 8x = 0
x(x) + x(8) = 0
    x(x + 8) = 0
x = 0  or  x + 8 = 0
                   - 8  - 8
                     x = -8

      y = -x - 4
      y = -0 - 4
      y = 0 - 4
      y = -4
(x, y) = (0, -4)
         or
       y = -x - 4
       y = -(-8) - 4
       y = 8 - 4
       y = 4
 (x, y) = (-8, 4)

The solutions are (0, -4) and (8, -4).
y=x²+7x-4
y=-x-4

We can solve this system of equation by equalization method.
x²+7x-4=-x-4
x²+7x+x-4+4=0
x²+8x=0
x(x+8)=0
we have two linear equations :
x=0                                ⇒  x=0        ⇒  y=-x-4=-0-4=-4
(x+8)=0                         ⇒  x=-8      ⇒  y=-x-4=-(-8)-4=8-4=4
 
We have two solutions:
solution₁:  x=0;  y=-4
solution₂:  x=-8; y=4

Hanna has 4 apples she give 2 to Anna how much does she have left

Answers

that would be 2 apples. :)

A large bin of mixed nuts contains peanuts, cashews, almonds, and walnuts. Luke scoops out a bowl full of nuts and counts how many of each type he has: 18 peanuts, 8 cashews, 10 almonds, and 9 walnuts. Armando scoops out a bowl of 30 nuts. About how many should he expect to be peanuts?

A.4

B.6

C.9

D.12

Answers

D.12

In total Luke found 18 peanuts out of 45 nuts- a ratio of 2:5

Armando will expect to find a ratio of 2:5 which is 12 peanuts out of 30 nuts.

Answer: D. 12

Step-by-step explanation:

I just took the test

HELP ASAPFind P (Junior|Boy) Hint: P(A and B)
P(B)
Classroom of Students
Boys Girls
Freshman 4 4 8
[?]
Sophomore 5 7 12
Junior 2 3 5
Senior 1
4 5
12 18

Answers

The Probability of junior boys will be  (1)/(6) .

What is Probability ?

Probability is the ratio of the number of possible outcomes to the total number of outcomes.

We have,

Total number of boys = 12

Total Junior boys = 2

So,

Probability =(number\ of\ possible\ outcomes )/(total\ number\ of\ outcomes)

So,

P (Junior Boy) =(number\ of\ junior\ boys)/(total\ number\ of\ boys)

So,

P (Junior Boy) =(2)/(12)

i.e.

P (Junior Boy) =(1)/(6)

So,

The Probability of junior boys is (1)/(6) .

Hence, we can say that the Probability of junior boys will be  (1)/(6) .

To know more about Probability click here

brainly.com/question/23355769

#SPJ2

Answer:

Step-by-step explanation: 1/6

How to write a verbal expression for 2n-10

Answers