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3 years ago

The graph of a quadratic equation opens down when the value of is negative.

Mathematics

1 answer:

motikmotik3 years ago

6 0

Answer:

given a quadratic function, y = ax2 + bx + c, when "a" is positive, the parabola opens upward and the vertex is the minimum value. On the other hand, if "a" is negative, the graph opens downward and the vertex is the maximum value

Step-by-step explanation:

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Mason opens a savings account by making a $165.85 deposit. Every week, he deposits another $20.50 in the account.

tiny-mole [99]

Answer:

i think that it would be

$370.85

Step-by-step explanation:

The following expression shows the amount of money in the account after x weeks.

If $20.50 was added to the account for 10 weeks we can substitue 10 as the x:

$370.85 will be in the account after 10 weeks

8 0

3 years ago

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At many golf clubs, a teaching professional provides a free 10-minute lesson to new customers. A golf magazine reports that go

Bezzdna [24]

Answer:

Given:

Mean, u = 2100

A golf magazine reports the mean gain to be $2100, while the teaching professional believes the average gain is not $2100.

Here the null and alternative hypotheses would be:

Null hypothesis:

H0: u = 2100

Alternative hypothesis:

Ha: u ≠ 2100

b) Here, given the level of significance, $\alpha$ as 0.10. This means that:

The probability that the null hypothesis H0 is rejected when average gain is $2100 is 0.10

8 0

4 years ago

Write the number in expanded form: Three hundred twenty-six thousand, five hundred eight and nine hundredths?

VashaNatasha [74]

Answer: 300,000 + 20,000 + 6,000 + 500 + 8 + 0.09

3 0

3 years ago

C) Work out<br> 2.9 x 105 * 7.2 x 102<br> (Over) 5 x 10-8

Zepler [3.9K]

Answer: 417,600,000,000,000

Step-by-step explanation: 2.9(10)^5(7.2)(10^2)/5(10^-8)

(2.9)(100,000)(7.2)(10^2)/5(10^-8)

(290,000)(7.2)(10^2)/5(10^-8)

2,088,000(10^2)/5(10^-8)

(2,088,000)(100)/5(10^-8)

208,800,000/5(10^-8)

208,800,000/5(1/100,000,000)

208,800,000/1/20,000,000

417,600,000,000,000

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4 years ago

How do you find the length of the legs of an isosceles triangle?

AveGali [126]

Answer:

Step-by-step explanation:

4 0

3 years ago

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