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const2013 [10]
3 years ago
6

Is x^2+13x-4=0 a quatratic function? Why?

Mathematics
1 answer:
zysi [14]3 years ago
8 0
Yes it is a quadratic function. A quadratic function contains the term x^2 and x^2 has the highest exponent in the whole function of a quadratic function. What I mean by this is for example x^3 + x^2 + 2x + 3 is not a quadratic. It includes x^2 but x^3 has the largest exponent. That makes that equation a cubic. Just for more info the largest exponent is referred to as the degree of the function so the degree of a quadratic function is always 2. Hope this helps!
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The top of a table has a length of 7 feet and a width of 5 feet. what is the area of the table top
gladu [14]

Answer:<em> 35ft</em>

Step-by-step explanation:

<em>The area for a rectangle or square is Width times Length (W*L)</em>

<em>So we can take our given measurements and multiply them</em>

<em />5*7=35<em />

7 0
3 years ago
Mr.Hall stands 200 meters from the base of the water tower. He finds the angle of elevation to the top of the water to be 27 deg
love history [14]

Height of the tower = 101.9 m

Solution:

Given data:

Angle θ = 27°

Adjacent side = 200 m

Opposite side = Height

Let height be taken as h.

The given image shows it is a right triangle.

Using basic trigonometric ratio formulas,

$\tan \theta=\frac{\text { Opposite side of } \theta}{\text { Adjacent side of } \theta}

$\tan27^\circ =\frac{{ h}}{200}

The value of tan 27° = 0.5095

$0.5095 =\frac{{ h}}{200}

Do cross multiplication, we get

0.5095 × 200 = h

101.9 = h

Height of the tower = 101.9 m

8 0
3 years ago
Determine the next three terms in the following sequence: 1, 8, 27, 64,____, ____, ____,...
Dovator [93]
Hello,

Answer D
x_{n} =n^3\\&#10; x_{1} =1^3=1\\&#10; x_{2} =2^3=8\\&#10; x_{3} =3^3=27\\&#10; x_{4} =4^3=64\\&#10; x_{5} =5^3=125\\&#10; x_{6} =6^3=216\\&#10; x_{7} =7^3=343\\&#10;
4 0
3 years ago
Read 2 more answers
How do you solve a two step equation with a fraction
dimaraw [331]
-35 ok that is the answer
8 0
3 years ago
david earns $1.50 per hour more than peter. together, they earn $940 if they both work 40 hours in a week. how much money per ho
Korolek [52]

Answer:

469.25

Step-by-step explanation:

peter=x

david=x+1.50

x+(x+1.50)=940

x=940-x-1.50

2x=940-1.50

2x=938.5

x=938.5/2

x=469.25

8 0
3 years ago
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