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muminat
3 years ago
13

Use the parabola tool to graph the quadratic function. f(x)=2x^2+12x+16

Mathematics
1 answer:
viva [34]3 years ago
7 0
The first thing you should know is that you need three points to be able to graph a second degree equation.
 You can create a table and plot several points to obtain the parabola
 In this case we will use a computational tool called wolfram alpha
 Answer: 
 See attached image.
 The graph is shown for two different intervals of the domain.

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Two different sizes of square metal duct are joined by a piece that is a frustum of a pyramid. Find the lateral surface area, if
Allisa [31]

Answer:

288 in²

Step-by-step explanation:

The formula used to solve this question is :

Lateral Surface Area = s( P1 + P2)

Where s = slant height = 2 inches

P1 and P2 = Perimeter of the bases

Perimeter of base 1 = 4 × length of the end of the small square

4 × 17 inches = 68 inches

Perimeter of base 2 = 4 × length of the end of the large square

4 × 19 inches = 76 inches

Lateral Surface Area = 2 × (68 + 76)

= 2 × 144

= 288 in²

8 0
3 years ago
Find the volume of the figure. Round to the nearest tenth if necessary.<br> 3 yd<br> 3 yd<br> 10 yd
MrMuchimi

Answer: 90 yards

Step-by-step explanation:

10 by 3 by 3 is 90

4 0
3 years ago
Johanna's monthly salary was increased by 4% to $27,560. What was the salary before the increase?​
SOVA2 [1]

Answer:

$15,500

Step-by-step explanation: Trust

7 0
3 years ago
Read 2 more answers
I need the answer please help me
Anna71 [15]

Answer:

-29.988 or if you round up -30

Step-by-step explanation:

1) Convert fractions to decimals  

    3.6 x (-8.33) = -29.988

4 0
2 years ago
Read 2 more answers
You charge customers $18.75 for lube service, parts, and labor. Assuming you take one hour's labor at $15, and the parts cost $3
hram777 [196]
Let
T---------> <span>the tax rate on the parts in $

we know that
$18.75=$15+$3.50+$T
T=18.75-15-3.5
T=$0.25
so
$3.50----------> 100%
$0.25--------> x
x=0.25*100/3.50------> x=7.14%------> x=7.1%

the answer is
7.1%</span>
5 0
3 years ago
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