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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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A cyclist rides at a constant speed of 15 miles per hour. At this speed, about how long would it take the cyclist to ride from G

goblinko [34]

Answer: 5.61333333 h

If the length between Garden city to dodge city is 84.2km the answer would be 5.61333333 hours [non-terminating decimal]

Step-by-step explanation:

So ummm, i dunno if the answer is right but yeahh

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Distance between GC AND DC = 84.2

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1 year ago

If AABC = ADEF, which segment is congruent to AC?

masha68 [24]

Answer:

Segment DF

Step-by-step explanation:

The corresponding vertices are in the same order in both triangles.

ABC

DEF

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3 years ago

SO CONFUSED PLEASE SOMEONE EXPLAIN! DUE SOON AND NEED HELP!!!!!!!! QUESTION IN PICTURE BELOW

jeka57 [31]

Answer:

=> Apply law of cosine

$c^2=a^2+b^2-2abcos\left(C\right)$

=> input value

$z^2=6.5^2 + 9.4^2-\left(6.5\right)\left(9.4\right)\left(cos\left(131\right)\right)$

=> simplify

$z=\sqrt{\left(6.5^2+\:9.4^2\right)-\left(6.5\right)\left(9.4\right)\left(-0.65605902899\right)}$

=> calulcation

$z=\sqrt{-61.1\cos \left(131^{\circ \:}\right)+130.61},\:z=-\sqrt{-61.1\cos \left(131^{\circ \:}\right)+130.61}$

=> apply rule: Distance must be greater than 0

which is about 14.51828

4 0

2 years ago

Ms. Wall will roll a dice. What is<br><br> the probability that she will roll an even number?

Sergeu [11.5K]

Answer:

50%

Step-by-step explanation:

half of the numbers on dice are even

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Andrei [34K]

The answer for this question is 65.099 or when round off to two decimal places, it will be 65.10

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3 years ago

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