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posledela
3 years ago
10

Which shows the correct substitution of the values a,b,and c from the equation 0=4x^2+2x-1 into the quadratic formula below

Mathematics
2 answers:
quester [9]3 years ago
8 0

Answer:

the answer is b on ed

Step-by-step explanation:

lutik1710 [3]3 years ago
4 0

Given quadratic equation : 0 = 4x^2+2x- 1

Let us apply standard quadratic form 0=ax^2+bx+c

We know, quadratic formula

x = \frac{-b+-\sqrt{b^2-4ac}}{2a}

a = 4

b = 2

c= -1

Now we plug in all the values in quadratic formula

x = \frac{-b+-\sqrt{b^2-4ac}}{2a} \\ x = \frac{-2+-\sqrt{2^2-4(4)(-1)}}{2(4)}\\ x = \frac{-2+-\sqrt{18}}{8}.

<h3>The above one is the substitution of values of a,b,c in quadratic formula.</h3>
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Bryan gets on an elevator at the 35th floor. The elevator goes down 17 floors then up
Lisa [10]

Answer:

19

Step-by-step explanation:

35-17 = 18 if up one more floor then 19

4 0
3 years ago
Which term has a degree of 8?<br> A.8xy<br> OB. -22³5<br> OC. 9ry<br> OD. 3x²y4
Damm [24]

The term that has a degree of 8 is -2x³y⁵

<h3>How to find the degree of a polynomial?</h3>

The polynomial above is a monomial. A monomial is a polynomial with a single term.

Therefore, the degree of a monomial is the sum of the exponents of all its variables.

In other words, a monomial is a number, a variable or a product of a number and a variable where all exponents are whole numbers.

Hence, the term with degree of 8 is -2x³y⁵

Degree = 0 + 3 + 5 = 8

learn more on degree here: brainly.com/question/14939467

#SPJ1

6 0
2 years ago
Which of the following could be the equation of the graph shown below?
Mrac [35]

Answer:

According to the proposed interrogate, as well as the graph provided, the correct answers to such are identified as B. Y = -2x + 5 and C. 2x + y = 4.

Step-by-step explanation:

To evaluate such, a comprehension of linear Cartesian data is required:

Slope = rise/run. If there is a negative rise, the direction of the line is proportional to the left-hand side as it exponentially grows or augments in units.

Y-intercept: The peculiar point in which the linear data observed intersects the y-axis.

X-intercept: The peculiar point in which the linear data observed intersects the x-axis.

Since this is a negative linear, all negative slopes apply.

The interrogate states, “Check all that apply.” Thus, there may be more than one correct answer, shall such be disseminated.

A. Cannot be the answer as the line should have been a horizontal line contained within quadrants I and II on the Cartesian Plane.

B. Contains a negative slope, thus is disclosed as a correct answer.

C. This configuration is denoted in “Standard Form” or “General Form”. To convert this to “Slope-Intercept Form” the following must be executed mathematically:

2x + y = 4

Y = -2x + 4 <== Slope-Intercept Form (Contains a negative slope, thus considered a correct answer.

D. Likewise, this configuration is denoted in “Standard Form” or “General Form”. To convert this to “Slope-Intercept Form” the following must be executed mathematically:

X - y = 9

-y = -x + 9

Y = x - 9 <== Slope-Intercept Form (Cannot be considered as the correct answer, given the positive slope configuration, thus is marked out).

Thus far, as evaluated, the correct answers to the proposed interrogate, as according to the linear data provided in the Cartesian Plane is acknowledged, and henceforth disseminated, as B. Y = -2x + 5 and C. 2x + y = 4.

*I hope this helps.

8 0
3 years ago
--Marking Brainliest whoever answers this first, please hurry
Studentka2010 [4]

The slope of the line is 0.35

x = number of items sold

y = total price in dollars

Therefore,

using slope formula,

The slope is rise over run. The slope of a line is the measure of its steepness.

<h3>Slope equation:</h3>
  • m = y₂ - y₁ / x₂ - x₁

where

y₂ = 3.85

y₁ = 2.45

x₂ = 11

x₁₁ = 7

Therefore,

m = 3.85 - 2.45 / 11 - 7

m = 1.4 / 4

m = 0.35

learn more on slope here; brainly.com/question/24911901

5 0
3 years ago
Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anythi
Allisa [31]
The answer is B, because 0.06*45000 + 0.08(51000-45000) = 3,180
4 0
3 years ago
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