3 years ago

2x+ for x=5 help me with this

Mathematics

1 answer:

Rus_ich [418]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

The product of two positive numbers is 48. Determine the two numbers if one number is triple the other

Tomtit [17]

Step-by-step explanation:

x+x(3)=48

combine like terms

4x=48

Divide both sides by same term

4x/4=48/4

Simplify

x=12

5 0

3 years ago

Read 2 more answers

The total age of a woman and her son is 51 years. Three years ago, the woman was eight times as old as her son. How is old is he

Veronika [31]

51 - 3 = 48

48 / 8 = 6

6 + 3 = 9

Her son is 9 years old

6 0

3 years ago

Identify the vertex and directrix of each. y = x2 + 2x - 4

sergey [27]

Answer:

See below

Step-by-step explanation:

Convert equation to vertex form $y=(x-h)^2+k$ by completing the square:

$y=x^2+2x-4$

$y+5=x^2+2x-4+5$

$y+5=x^2+2x+1$

$y+5=(x+1)^2$

$y=(x+1)^2-5$

Vertex:

$(h,k)\rightarrow(-1,-5)$

Directrix:

$y=k-\frac{1}{4a}\rightarrow y=-5-\frac{1}{4(1)}\rightarrow y=-\frac{21}{4}$

8 0

2 years ago

100x²7 Quadratic equation

grin007 [14]

Hope the answer I gave you helps!!!
:)

3 0

3 years ago

Is 30.249 greater or less than 30.429

saw5 [17]

The answer is greater than 30.429.

Hope It Helps :]

6 0

4 years ago

Read 2 more answers