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3 years ago

In 3a + b - 12 Name The Coefficients. PLZ A) 3 B )3 , 1 , 12 C) 3, 1 D) a , b

Mathematics

2 answers:

Montano1993 [528]3 years ago

8 0

Answer:

3,1

Step-by-step explanation:

because coffecients are related to a, b so thats why 3, 1 are coefficients of a,b

lidiya [134]3 years ago

4 0

C. 3, 1 is the answer!

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Is (3,7) A solution why or why not?

galben [10]

What? Can you attach a photo?

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2 years ago

Read 2 more answers

Ahmad lost 50 dollars from his pocket.<br><br>Write a signed number to represent this change.

IRINA_888 [86]

Answer:

-50

Step-by-step explanation:

it could be X-50=?

8 0

3 years ago

F(x) = 3x^2-3x + 1<br> Find f (-2)

Oxana [17]

Answer:

Step-by-step explanation:

f(x) = 3x^2-3x + 1

Let x = -2

f(-2) = 3( -2)^2-3*-2 + 1

= 3 * 4+6+1

= 12 +6+1

= 19

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=0%20%3D%20%20%20-%204.9t%20%7B%7D%5E%7B2%7D%20%20%2B%2027t%20%2B%202.4" id="TexFormula1" title

marta [7]

$0 = - 4.9t {}^{2} + 27t + 2.4$
Convert decimals to fractions

$0 = - \frac{49}{10} t {}^{2} + 27t + \frac{12}{5}$
Multiply both sides by 10

$0 = - 49t {}^{2} + 270t + 24$
Move expression to the left.

$0 + 49t {}^{2} - 270t - 24 = 0$
Remove zero.

$49t {}^{2} - 270t - 24 = 0$ Solve the quadratic equation.

$t = \frac{ - ( - 270) + - \sqrt{( - 270) {}^{2} - 4 \times 49 \times ( - 24) } }{2 \times 49}$
Remove parenthesis and calculate.

$t = \frac{270 + - \sqrt{72900 + 4704} }{98}$
Add the numbers

$t = \frac{270 + - 77604}{98}$
Separate the solutions

$t = \frac{270 + \sqrt{77604} }{98} \\ t = \frac{270 - \sqrt{77604} }{98}$
The final solution are
$t1 = \frac{270 - \sqrt{77604} }{98} , t2 = \frac{270 + \sqrt{77604} }{98}$

7 0

4 years ago

Pavlova-9 [17]

Answer:

option c. 2

...........

3 0

2 years ago