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3 years ago

Need help can someone plz help me solved this problem ASAP! Need help I will mark you as brainiest

Mathematics

1 answer:

MrRissso [65]3 years ago

5 0

Answer: 2, 6

Step-by-step explanation:

Triangle Inequality Theorem states that the sum of two sides must be GREATER than the third side.

RS + ST > RT and RS + RT > ST and ST + RT > RS

2x + 4x > 12 2x + 12 > 4x 4x + 12 > 2x

6x > 12 12 > 2x 12 > -2x

x > 2 6 > x -6 < x

2 < x x < 6 invalid

Answer: 2 < x < 6

Graph: O----------------------O

2 6

Note: -6 is invalid because you cannot have a negative length.

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If 4squaredx+1 = 4, then x=

cluponka [151]

$log_{4}4 = 2x + 1 

1 = 2x + 1

0 = 2x

x = 0$

4 0

3 years ago

Given f(x) = 4x + 3 and f(x) = 27, what is x?

Airida [17]

Step-by-step explanation:

f(x)=4x+3. f(x)=27

so 27=4x+3

27-3 =4x

24=4x

x=24/4

x=6

5 0

3 years ago

Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite

yarga [219]

Answer:

Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

$x+y=1$

i.e $x=1-y$ --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

$0.05x+0.45y=1\times 0.15$

i.e $5x+45y=15$ -------------2

Putting value of x from equation 1 in equation 2,

$\Rightarrow 5(1-y)+45y=15$

$\Rightarrow 5-5y+45y=15$

$\Rightarrow 5+40y=15$

$\Rightarrow 40y=15-5=10$

$\Rightarrow y=0.25$

Putting the value of y in equation 1,

$x=1-0.25=0.75$

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.

5 0

3 years ago

PLEASE HELP!!!!

kondaur [170]

Add 6 to left middle and right
then, divide them all by 3

6 0

3 years ago

Which equation is y = â€""6x2 3x 2 rewritten in vertex form?.

Ber [7]

The vertex form needed is :

$-6(x-0.25)^2 +2.375$

Given the equation:

$-6x^2 + 3x + 2\\$

The vertex form of $f(x) = ax^2 + b(x) + c$ is given by:

$f(x) = a(x-h)^2 + k$

Here, (h,k) is the vertex of the parabola equation given.

Conversion will go like this:

$-6x^2 + 3x + 2\\= -6(x^2 - 0.5x) + 2\\= -6(x^2 -0.5x + 0.0625 - 0.0625) + 2\\= -6(x^2 -0.5x + 0.0625) + 2 +0.375\\= -6(x-0.25)^2 + 2.375\\\\$

This is the resultant vertex form.

Thus the vertex form needed is :

$-6(x-0.25)^2 +2.375$

Learn more here:

brainly.com/question/15165354

6 0

2 years ago