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4 years ago

12

Plz helpp me!!?:) I don’t understand

1 answer:

Korvikt [17]4 years ago

8 0

-24 - (-13) = w

Simplify the left side

-24 + 13 = w

Add together like terms

-11 = w

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List the domain and range for the relation below: (The picture is down below)

svetoff [14.1K]

So the domain represents x so it would be the first number of each set or coordinates (1,3,-7,9,3) and the range is y so the second number in the pair so (-9,-7,8,7,-6)
hope that helps!

3 0

3 years ago

Read 2 more answers

Describe the graph of the function.

gayaneshka [121]

Answer:

The answer is option 1.

Step-by-step explanation:

Axis of symmetry means the middle x-coordinates of the parabola. So in order to find the x value, you have to find the TP which is Turning Point by using Completing the Square :

${(x + \frac{b}{2} )}^{2} - {( \frac{b}{2} )}^{2} + c = 0$

Let y = 0,

$2{x}^{2} + 12x - 15 = 0$

$2( {x}^{2} + 6x - \frac{15}{2} ) = 0$

${( {x + \frac{6}{2}) }^{2} - ( { \frac{6}{2} )}^{2} - \frac{15}{2} } = 0$

$( {x + 3)}^{2} - {(3)}^{2} - \frac{15}{2} = 0$

$( {x + 3)}^{2} - 9 - \frac{15}{2} = 0$

$(x { + 3)}^{2} - \frac{33}{2} = 0$

$2(x { + 3)}^{2} - 33 = 0$

Next, you have to solve the x value :

x + 3 = 0

x = -3

7 0

3 years ago

Bro can someone help me out?

ivanzaharov [21]

Answer:

16.8 cm

Step-by-step explanation:

Volume = length x width x height

V = 4 x 3 x 1.4

V = 16.8

3 0

3 years ago

Is -12.452 a rational or irrational number??

Over [174]

Answer:

Rational

Step-by-step explanation:

Rational number is kind of like a number that you can understand, i.e 4.567,

7.67.

Irrational number is kind of like a number that you can't really understand, like π, pi. 3.1415926535897...

3 0

3 years ago

Read 2 more answers

After being rearranged and simplified, which of the following equations could

masha68 [24]

Answer:

C and D

Step-by-step explanation:

The quadratic formula is

x= (-b±√b²-4ac)/2a

The formula uses the numerical coefficients in the quadratic equation.

The general quadratic equation is ax²+bx+c where a, b and c are the numerical coefficients

So, lets try and see;

A.

$5x+4=3x^4-2\\\\=3x^4-5x-2-4\\=3x^4-5x-6\\a=3,b=-5,c=-6$

But due to the fact that in this equation you have x⁴, the equation is not a quadratic equation thus can not be solved using this formula

B

$-x^2+4x+7=-x^2-9\\\\\\=-x^2+x^2+4x+7+9\\=4x+16$

C

$9x+3x^2=14+x-1\\\\\\=3x^2+9x-x-14+1\\\\=3x^2+8x-13\\\\\\a=3,b=8,c=-13\\$

D.

$2x^2+x^2+x=30\\\\\\=3x^2+x-30\\\\\\a=3,b=1,c=-30$

From the checking above, the equations will be C and D

7 0

3 years ago

Read 2 more answers