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3 years ago

13

Help me please i beg you

1 answer:

k0ka [10]3 years ago

8 0

ANSWER: Acute and obtuse angle

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Find the domain of the function f(x) = 3x - 2.

zhenek [66]

Answer:

X=R

Step-by-step explanation:

domain is everything you can fill in for X. in the function X can be everything, so X=R

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3 years ago

Solve the following linear system of equations using substitution.

suter [353]

Answer:

(-1,-8)

Step-by-step explanation:

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3 years ago

Identify the vertex, focus, and directrix of the graph. Which of the following equations represents the parabola in the graph?

antoniya [11.8K]

Answer:

Equation: $(x-2)^2=16(y-2)$

Vertex: $(2,2)$

Directrix: $y=-2$

Focus: $(2,6)$

Step-by-step explanation:

<u>Standard Form of Vertical Parabola:</u>

Equation -> $(x-h)^2=4p(y-k)$ where $p\neq 0$
Vertex -> $(h,k)$
Directrix -> $y=k-p$
Focus -> $(h,k+p)$

We know that our vertex is $(h,k)$ -> $(2,2)$ , therefore, we can determine the value of $p$ by selecting a point from the parabola as $(x,y)$ :

$(x-h)^2=4p(y-k)$

$(x-2)^2=4p(y-2)$

$(6-2)^2=4p(3-2)$

$(4)^2=4p(1)$

$16=4p$

$4=p$

<u>Therefore:</u>

Directrix -> $y=k-p$ -> $y=2-4$ -> $y=-2$

Focus -> $(h,k+p)$ -> $(2,2+4)$ -> $(2,6)$

<u>Conclusion:</u>

Equation -> $(x-2)^2=16(y-2)$
Vertex -> $(2,2)$
Directrix -> $y=-2$
Focus -> $(2,6)$

Review the graph for a visual

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3 years ago

Complete the table to determine the amount of money that gabriella would recieve in exchange for 200 u.s dollars in each country

Anestetic [448]

Answer:

might wanna show us the table

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3 years ago

Solve using perfect square factoring patterns. x2 – 12x + 36 = 4 A. {–8, –4} B. {–2, 10} C. {4, 8} D. {10, –2}

Nataliya [291]

<span> x2 – 12x + 36 = 4
(x - 6)^2 = 2^2

x - 6 = 2
x = 8

-(x - 6) = 2
-x + 6 = 2
-x = -4
x = 4

answer
</span><span>C. {4, 8}</span>

3 0

3 years ago