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3 years ago

I need this asap: Find the Domain

Mathematics

1 answer:

rusak2 [61]3 years ago

5 0

The domain is 3 and 5

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How many solutions does the following equation have? 4(y-30)=4y+12

kramer

Answer:

there are 2 sullotions of doing this question

Step-by-step explanation:

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3 years ago

Read 2 more answers

I need it ASAP please

Paraphin [41]

Look at my picture for the work

Answer: a=8 and b=2

Please let me know if this helped!!

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3 years ago

Solve this triangle round to the nearest tenth where necessary

Fynjy0 [20]

Answer:

J =51

Step-by-step explanation:

Your welcome! Have a great day!

8 0

3 years ago

Use the parabola tool to graph the quadratic function f(x)=−5x2−2.

alexira [117]

$\text{Consider the quadratic function}\\
\\
f(x)=-5x^2-2\\
\\
\text{For a quadratic equation, }f(x)=ax^2+bx+c, \text{ we know that the x-coordinate}\\
\text{of the vertex (h,k) is given by}\\
\\
h=\frac{-b}{2a}\\
\\
\text{on comparing the given equation with standard equation, we have}$

$a=-5, b=0, c=-2\\
\\
\text{so the x-coordinate of the vertex is }\\
\\
h=-\frac{b}{2a}=-\frac{0}{2(-5)}=0\\
\\
\text{so plug this vlaue of the h in the given function to get the y-coordinate}\\
\text{of the vertex. so}\\
\\
f(x)=-5(0)^2-2=0-2=-2\\
\\
\text{hence the vertex of the parabola is: }(h,k)=(0,\ -2)\\
\\
\text{A second point on the graph can be found by putting x=1, so }\\
\\
f(1)=-5(1)^2-2=-5-2=-7\\
\\
\text{so one other point on the parabola is }(1,-7)$

The grpah of the quadratic function is shown below:

5 0

4 years ago

50+x(greater than or equal to)300

nikdorinn [45]

Answer:

x ≥ 250

Step-by-step explanation:

Note that "greater than or equal to" looks like ≥

50 + x ≥ 300

Isolate the variable. What you do to one side, you do to the other. Subtract 50 from both sides.

x + 50 (-50) ≥ 300 (-50)

x ≥ 300 - 50

x ≥ 250

x ≥ 250 is your answer.

4 0

3 years ago