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sergey [27]
3 years ago
14

A student factors 3x^2-12 to the following 3(x^2-4) which statement is true?​

Mathematics
1 answer:
natka813 [3]3 years ago
5 0

Answer:

The expression is equivalent but is not completely factored

Step-by-step explanation:

Given

3x² - 12 ← factor out 3 from each term

= 3(x² - 4) ← x² - 4 is a difference of squares

= 3(x - 2)(x + 2) ← completely factored

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the hypotenuse of a right triangle is 12 centimeters, and the shorter leg is 6 centimeters. find the length of the other leg. us
AfilCa [17]
A^2 + b^2 = c^2....a and b are the legs and c is the hypotenuse
6^2 + b^2 = 12^2
36 + b^2 = 144
b^2 = 144 - 36
b^2 = 108
b = sqrt 108
b = 10.39 cm <== length of the other leg

=============================
q + d = 17....d = 17 - q
0.25q + 0.10d = 3.05

0.25q + 0.10(17 - q) = 3.05
0.25q + 1.7 - 0.10q = 3.05
0.25q - 0.10q = 3.05 - 1.7
0.15q = 1.35
q = 1.35/0.15
q = 9 <=== there is 9 quarters
3 0
3 years ago
What is the function notation for 3g(3)
patriot [66]

Step-by-step explanation:

the international telecomination union (ITU) defined the third generation (3g) of mobil telephony standards IMT_2000 to facilitate growth, increase bandwidth and support more diverse applications.for example gsm could deliver not only voice but also circuit switched data at speeds up to 14.4kbps.

6 0
3 years ago
Emma's grades are 100, 98, 94, 90, and 88. Emma decides not to study for the final because her grades are so high on all of the
makkiz [27]

Answer:

Average x = 89

Size n = 6

Sum Sum = 534

Solution:

The Average (Mean) is equal to the Sum of all data divided by the Size of the data set.

Average = Sum / Size

= 534 / 6

= 89

8 0
3 years ago
3y+2=2y-5x <br><br>solve and show work
pentagon [3]

Alrighty, first off you would move the 2y to the left side and change its sign and move the constant (2) to the other side and change its sign.

3y - 2y = 5x - 2

Next you would collect the like terms for y.

y = 5x - 2

And because you cannot do anything else with the problem that is the final answer: y = 5x - 2

Hope this helps! :)

8 0
3 years ago
A deck of cards contains RED cards numbered 1,2,3 and BLUE cards numbered 1,2,3,4,5,6. Let R be the event of drawing a red card,
Tatiana [17]

Answer:

e. R′

Step-by-step explanation:

Let the Sample Space be a universal set consisting of 3 red  and 6 blue cards. Then the event of  of getting 4 blue cards will be given

R complement = R` = Universal Set minus Red cards will give blue cards.

a. R OR O

It cannot be this option because we need 4 blue card

b. B AND O

It cannot be this choice as well because 4 is not odd.

c. R OR E

4 is even but we need blue

d. R AND O

Red and odd is again not required

e. R′  = It  will give our required result.

f. E′= 4 is even if it is complemented it cannot be obtained and will be left out.

5 0
4 years ago
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