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3 years ago

What is the maximum or minimum of the quadratic function y = 16x^2 +40x +25

1 answer:

6 0

Y = 16x^2+ 40x + 25

The sign before the 16 is positive, so it's a parabola with a minimum. The x coordinate of the minimum is: 
x=-b/2a=-40/32=5/4=-1.25 

If you fill that in, you get y=0 

so the coordinates are (1.25, 0)

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Draw a number line to represent the inequality. y s 23

Mkey [24]

Answer:

The number lines are shown below.

Step-by-step explanation:

In the given problem the sign of inequality is missing.

We know, that there are 4 signs of inequality ">", "<", "≥" and "≤".

The possible inequalityes are

$y>23$

$y$

$y\geq 23$

$y\leq 23$

In $y>23$ , all points on the right side of 23 are included in the solution set.

In $y$ , all points on the left side of 23 are included in the solution set.

In $y\geq 23$ , 23 and all points on the right side of 23 are included in the solution set.

In $y\leq 23$ , 23 all points on the left side of 23 are included in the solution set.

4 0

3 years ago

A) For AQRS use the Triangle Proportionality Theorem to solve for x.

xenn [34]

Answer:

a. x = 14

b. Perimeter = 77

Step-by-step explanation:

a. Based on the Triangle Proportionality Theorem:

$\frac{2x - 2}{13} = \frac{21 - 7}{7}$

$\frac{2x - 2}{13} = \frac{14}{7}$

$\frac{2x - 2}{13} = 2$

Cross multiply

$2x - 2 = 2(13)$

$2x - 2 = 26$

Add 2 to both sides

$2x = 26 + 2$

$2x = 28$

Divide both sides by 2

x = 14

b. Perimeter of ∆QRS = RQ + QS + RS = (2x - 2) + 13 + 17 + (21 - 7) + 7

Plug in the value of x

= (2(14) - 2) + 13 + 17 + 14 + 7

= 26 + 13 + 17 + 14 + 7

= 77

8 0

3 years ago

Help pleasee! Thank uu

ololo11 [35]

Answer:

The answer is the 2nd option

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

How can I fiure out markup from a price and a percent? (So if i have $1.50 and I need 20% more how do I do that)

Ede4ka [16]

1.50 + (1.50 * (20%)) = 1.8

7 0

3 years ago

the base of a triangle is 8 inches more than the height. The area is 45 inches. Find the dimensions of the triangle

SashulF [63]

The dimensions would be 9,5,10

7 0

2 years ago