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3 years ago

After transforming f(x) = 2x² + 4x + 3 into vertex form, the vertex is easily identifiable. Which ordered pair is the vertex?

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

6 0

Answer:

The correct answer to your question is A because your asking for the vertex of the equation.

Step-by-step explanation:

Vertex Algebraic Equations

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Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

2 years ago

Reggie earns $12.65 per hour and works 38 hours per week. How much does he warm in a week before taxes are taken out?

nexus9112 [7]

Reggie earns $480.70 a week before taxes are taken out.

6 0

3 years ago

Can someone help me with this problem and give the answer

kykrilka [37]

Answer:

Step-by-step explanation:

<h2>No more means the other number is less than or equal to.</h2>

4 0

3 years ago

What is the measure of the indicated angle? A 180° B 110° C 70° D 90°

ikadub [295]

Answer:

D. 70°

Step-by-step explanation:

the sum of the unknown angle and 110° is 180 °

so, let the unknown angle be x

x+110 = 180

x = 180-110

x = 70°

8 0

2 years ago

Jason earns $28 for every 4 lawns he mows.

aleksandr82 [10.1K]

Answer:

This could easily be answered with a culculator but the answer is 20.

Step-by-step explanation:

5x4=20

5 0

3 years ago