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Hunter-Best [27]
2 years ago
14

Hello I need help on this math question

Mathematics
1 answer:
Licemer1 [7]2 years ago
4 0

Answer:

94.2 in squared

Step-by-step explanation:

lateral area plus area of both flat sides

37.68 + 2(3.14*3^2)

37.68 + 56.52 = 94.2 in squared

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Which of the following is equivalent to 3x -2(x -1)>11-9x
BaLLatris [955]

Answer:

x > 9/10 is the answer to the equation.

Step-by-step explanation:

3x -2(x -1) > 11-9x

3x -2x +2 > 11-9x

x+2> 11-9x

x+9x > 11-2

10x > 9

x > 9/10

5 0
2 years ago
Eric purchased three music CDs and a sweatshirt from a band's online store and received a 20% discount. He paid $100 for his pur
emmasim [6.3K]
(3c+s)(100-20)/100=100  multiply both sides by 100

(3c+s)80=10000  divide both sides by 80

3c+s=125  subtract 3c from both sides...

s=125-3c....now let's look at the second situation...

(4c+2s)(100-40)/100=120  multiply both sides by 100

60(4c+2s)=12000  divide both sides by 60

4c+2s=200  divide both sides 2

2c+s=100 subtract 2c from both sides

s=100-2c, and from earlier we saw that s=125-3c, since s=s:

100-2c=125-3c  add 3c to both sides

100+c=125  subtract 100 from both sides

c=25, and since s=100-2c

s=50

So cds cost $25.00 and sweatshirts cost $50.00
6 0
2 years ago
Read 2 more answers
What is the domain and range of the function f(x) = x^2 -4x-5?
Tems11 [23]
F(x) = x²-4x-5, quadratic function,  
Domain (the values if x) is all real numbers.

To find range we should draw a graph or to write an equation in vertex form.
f(x) = x²-4x+4-4-5
f(x) = (x-2)²-9
Point (-2,-9) is the vertex of the parabola, and it is a minimum because a parabola has positive sign in front of x², so it is looking up.  Minimum value of y =-9
Range(the values of y) is [-9, ∞)


5 0
3 years ago
A 30% increase followed by a 15% decrease, is it greater than original, smaller or same as
Pavel [41]
I believe the correct answer is greater than
4 0
2 years ago
You need to design a rectangle with a perimeter of 14.2 cm. The length must be 2.4 cm. What is the width of the
irina1246 [14]

Part (a)

<h3>Answer: 2(2.4+w) = 14.2</h3>

--------------

Explanation:

L = 2.4 = length

W = unknown width

The perimeter of any rectangle is P = 2(L+W)

We replace L with 2.4, and replace P with 14.2 to get 14.2 = 2(2.4+w) which is equivalent to 2(2.4+w) = 14.2

========================================================

Part (b)

<h3>Answer:   w = 4.7</h3>

--------------

Explanation:

We'll solve the equation we set up in part (a)

2(2.4+w) = 14.2

2(2.4)+2(w) = 14.2

4.8+2w = 14.2

2w = 14.2-4.8

2w = 9.4

w = 9.4/2

w = 4.7

The width must be 4.7 cm.

4 0
3 years ago
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