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3 years ago

What value in place of the question mark makes the polynomial below a perfect square trinomial x^2+24x+?

Mathematics

2 answers:

Ray Of Light [21]3 years ago

8 0

Answer:

Answer D

Step-by-step explanation:

Take half of the coefficient of x: Take half of +24, obtaining 12. Now square this 12, obtaining 144. This is the desired value. Answer D is correct.

kykrilka [37]3 years ago

7 0

Answer:

Step-by-step explanation:

Perfect square trinomials can be written as (a + b)² = a² + 2ab + b². In this case, we know that a = x so we can write this as x² + 2bx + b². Since we know that 2bx = 24x we can conclude that b = 12, so that means b² = 12 * 12 = 144.

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If the Cookie Monster has 12000 cookies and splits them up among .5 friends how many cookies does each person get? There may be

liraira [26]

Answer:2400

Step-by-step explanation:

Just divide 12000 by 5

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3 years ago

What is the surface area of this design? 5 in 5 in 6.4 in 5 in 9 in

xeze [42]

ANSWER

$197 {in}^{2}$

EXPLANATION

The area of the two tra-pezoidal faces

$= 2 \times \frac{1}{2} \times (9 + 5) \times 5 = 70 {in}^{2}$

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$= 6.4 \times 5 = 32 {in}^{2}$

The area of the two square faces

$= 2(5 \times 5) = 50 {in}^{2}$

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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professor190 [17]

Answer:

$\frac{3\sqrt{2} }{2}$

Step-by-step explanation:

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3 years ago

NEED HELP ASAP. WILL GIVE BRAINLY

balu736 [363]

Answer:

A. x = 2 and y =2

B. x = 3 and y = -1

Step-by-step explanation:

A. { x = 3y − 4

2x − y = 2

1) Substitute the value of x

2(3y − 4) − y = 2

2) Solve the equation for y

y = 2

3) Substitute the value of y

x= 3(2) -4

4) Solve the equation for x

x = 2

Final Solution: x = 2 and y =2

B. { 3x + 2y = 7

−x + y = −4

1) Multiply both sides of the equation by 3

-3x + 3y = -12

2) Eliminate one variable by adding the equations

3x + 2y = 7

5y = -5

3) Divide both sides of the equation by 5

y = -1

4) Substitute the given value of y into the equation -x + y = -4

-x + (-1) = -4

5) Solve the equation for x

x = 3

Final Solution: x = 3 and y = -1

5 0

2 years ago