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3 years ago

13

Solve for a in terms of b and c:3a+4b=c

1 answer:

MariettaO [177]3 years ago

8 0

We want a in terms of b and c: <span>3a+4b=c

Isolate 3a on the left side: 3a = c - 4b
Divide all terms by 3:

a = c/3 - 4b/3 (answer)</span>

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Please help me on this problem

Anna71 [15]

Answer:

The pairs of integer having two real solution for $ax^{2} -6x+c = 0$ are

$a = -4, c = 5$
$a = 1, c = 6$
$a = 2, c = 3$
$a = 3, c = 3$

Step-by-step explanation:

Given

$ax^{2} -6x+c = 0$

Now we will solve the equation by putting all the 6 pairs so we get the following

$-3x^{2} -6x-5 = 0$ for $a = -3 , c=-5$

$-4x^{2} -6x+5 = 0$ for $a = -4 , c=5$

$1x^{2} -6x+6 = 0$ for $a = 1 , c=6$

$2x^{2} -6x+3 = 0$ for $a = 2 , c=3$

$3x^{2} -6x+3 = 0$ for $a = 3 , c=3$

$5x^{2} -6x+4 = 0$ for $a = 5 , c=4$

The above all are Quadratic equations inn general form $ax^{2} +bx+c=0$

where we have a,b and c constant values

So for a real Solution we must have

$Disciminant , b^{2} -4\timesa\timesc \geq 0$

for $a = -3 , c=-5$ we have

$Discriminant =-24$ which is less than 0 ∴ not a real solution.

for $a = -4 , c=5$ we have

$Discriminant = 116$ which is greater than 0 ∴ a real solution.

for $a = 1 , c=6$ we have

$Discriminant =12$ which is greater than 0 ∴ a real solution.

for $a = 2 , c=3$ we have

$Discriminant =12$ which is greater than 0 ∴ a real solution.

for $a = 3 , c=3$ we have

$Discriminant =0$ which is equal to 0 ∴ a real solution.

for $a = 5 , c=4$ we have

$Discriminant =-44$ which is less than 0 ∴ not a real solution.

7 0

3 years ago

Find the distance between the points given.<br> (0.5) and (-5, 0)

Andrew [12]

Answer:

I cant help unless i have workable units (0.5) is not a point

but im guessing that you were trying to say (0,5) in which case its

7.07106781187

its a triangle

5 on one side

5 on the other

solve for the hypotenuse

hypotenuse = $\sqrt{50}$

hypotenuse = 7.07106781187

I hope this helps!

8 0

3 years ago

What is 1/4 of 3200?

Greeley [361]

Answer: 800

Divide 3200 by 4 to get 800.

3 0

3 years ago

Read 2 more answers

HElp me there are two that have not been answered

Greeley [361]

Answer: the answer is 34

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

1.<br> Explain why the diagram shows that 6 (3 + 4) = 6*3 + 6*4

anygoal [31]

Answer:

I'm using algebra format ok so if u get it wrong pls dont kill me. 6(3+4) = 6*3 + 6*4 brackets in algebra means times so 6 times 3 + 6 times 4 done

5 0

3 years ago