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Kobotan [32]
4 years ago
7

Which statement describes the graph if f (x)=4x^2+20x+25?

Mathematics
1 answer:
cluponka [151]4 years ago
3 0

Answer:

There are no statements supplied, but see below.

Step-by-step explanation:

This is a perfect square trinomial (quadratic)  because  it factors to

(2x + 5)^2.

The zeroes are -5/2 multiplicity 2.

It is a parabola which opens upwards and whose vertex touches the x axis at the point (-5/2, 0).

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If line a is perpendicular to line b, and triangle ABC is reflected over line a, and then reflected over line b, the net transfo
Paladinen [302]

Answer:

rotation

Step-by-step explanation:

Reflecting over a gives us the triangle on the left.  Then reflection over b gives us the green triangle below the line.  This is a rotation of 180 degrees

8 0
4 years ago
Ryan has a collection of 216 baseball cards. He lets his brother have 1/3 of his collection and takes 27 cards to school to give
levacccp [35]

Answer:

117

Step-by-step explanation:

216/3=72

216-72=144

144-26=117

7 0
3 years ago
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Matthew receives a base weekly salary of $300 plus a commission of $50 each vacuum he sells what is the equation that models his
Andrei [34K]

Answer:

weekly earnings = 300+50x

Step-by-step explanation:

x is vacuums sold

7 0
3 years ago
The basketball coach at a small local college believes that his team plays better and scores more points in front of larger crow
Orlov [11]

Answer:

Step-by-step explanation:

Given that points scored is the dependent variable Y and Number of people attending the game is the independent variable is independent variable x

The correlation coefficient, slope and intercept are calculated as shown below:

x y

378 54

350 57

320 59

478 80

451 82

250 75

489 73

451 53

410 67

215 78

113 67

250 56

450 85

489 101

472 99

 

Mean 371.0666667 72.4

std dev 117.5138087 15.42632259

covariance 667.5733333  

r 0.394558035  

Slope 3.005642934  

Intercept 153.4581182  

y = 3.006x+153.46 is the regression line.

Corre = 0.3945 (weak positive)

8 0
3 years ago
Can anyone answer this >?
Alona [7]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b

where m is the slope and b the y- intercept

7 0
3 years ago
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