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2 years ago

What is the standard form for a quadratic?

Mathematics

2 answers:

Zigmanuir [339]2 years ago

3 0

Standard Form : f (x) = a(x - h)2 + k

Where in this equation (H,K) is the vortex of the parabola

and there are four other ways to solving these quadratic

1. Factoring

2. Completing the square

3. Your quadratic formula ( f (x) = a(x - h)2 + k )

4. Graphing

swat322 years ago

3 0

Answer:

Standard form of the equation is $ax^{2} +bx+c=0$ .There are 4 ways to solve a quadratic equation.

Step-by-step explanation:

Standard form for the quardatic equation is $ax^{2} +bx+c=0$ where a,b and c are variables.

There are 4 ways to solve a quardatic equation as described below:

1.Factorization

2.Quardatic formula

3.Graphing

4.Completing the square

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How to solve, -1.2x - 6.5x less than or equal to 2.3x + 5

Hitman42 [59]

-1.2x - 6.5x ≤ 2.3x + 5

-7.7x ≤ 2.3x + 5

≤ 10x + 5

-5 ≤ 10x

-1/2 ≤ x

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4 0

2 years ago

Select the correct answer.

Step2247 [10]

A. 1,690 miles because it’s for 30 days and they do 12 miles each day

3 0

2 years ago

What is the function rule for this question?

Lemur [1.5K]

To calculate the remaining number of teams, use the sequence formula:
a(n) = a(1)Rⁿ-¹
Where a(n) and a(1) are the nth and first terms. R is the factor. Therefore, 24 teams is valid value.
After 5 rounds :
a(5) = 128*(½)⁴
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3 years ago

Which represents the inverse of the function f(x) = 4x?

nekit [7.7K]

Answer:

$\displaystyle h(x) = \frac{1}{4}x$

Step-by-step explanation:

Sinse in this case you are dealing with direct variation, all you are doing is taking the multiplicative inverse of 4, which is ¼:

$\displaystyle f(x) = 4x \rightarrow f^{-1}(x) = \frac{1}{4}x$

This option is not an answer choise. Perhaps there was a typographical errour.

I am joyous to assist you at any time.

5 0

2 years ago

The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 330 grams and a standard deviati

just olya [345]

Answer:

Weights of at least 340.1 are in the highest 20%.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 330, \sigma = 12$