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Travka [436]
3 years ago
8

(5x-2)(x+4) find the product

Mathematics
2 answers:
ankoles [38]3 years ago
5 0
5x(x) + (5x)(4) + (-2)(x) + (-2)(4)= 
5x^2 + 20x - 2x - 8=
5x^2 + 18x -8
Elodia [21]3 years ago
3 0
You can combine like terms:

5x times x + -2 add 4

5x^2 + 2
This is the answer after simplifying- hope it helps you?
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An architect wants an artistic flair to the house he is building, so he designs windows that are three fourths of a circle in sh
larisa86 [58]

The amount of rim needed for each window is 141.4 in

<h3>How to find the length of the outer rim?</h3>

Since the outer rim is the length of an arc, we use the formula for length of an arc of a circle.

<h3>What is an arc?</h3>

An arc is part of section of the circumference of a circle

<h3>What is the length of an arc?</h3>

So, length of arc, L = Ф/360 × 2πR where

  • Ф = central angle of arc and
  • R = radius of circle.

Gven that for the window rim

  • Ф = angle of the rim = 270° and
  • R = radius of the rim = 30 in

Substituting the values of the variables into the equation for L, we have

L = Ф/360 × 2πR

L = 270°/360° × 2π × 30 in

L = 3/4 × 2π × 30 in

L = 3/2 × π × 30 in

L = 3 × π × 15 in

L = 45π in

L = 141.37 in

L ≅ 141.4 in

So, the amount of rim needed for each window is 141.4 in

Learn more about length of an arc here:

brainly.com/question/8402454

#SPJ1

7 0
2 years ago
Helpppppppppp plssssss
cluponka [151]
Pretty sure the answer is 6
8 0
2 years ago
NEED HELP PLEASE!!!!
Masja [62]

Answer:

Yes

Step-by-step explanation:

\sqrt{\frac{2x}{9} }={\frac{\sqrt{2x} }\sqrt{} {9} }  =\frac{\sqrt{2x} }{3}=\frac{1}{3}\sqrt{2x}

3 0
2 years ago
Rosa’s employer pays 80% of her health insurance premium and deducts the remainder from her paycheck. Rosa is paid weekly, and t
Lana71 [14]
The answer to your question is b. Hope i helped :)

3 0
3 years ago
Read 2 more answers
Billy is walking from the front door of his house to his bus stop, which is 960 feet away from his front door. As Billy walks ou
sasho [114]

Answer:

b) 690 - 7.5*t

c) 0 < t < 92s time (t) is independent quantity

d) 0 < s < 690ft distance from bus stop (s) is dependent quantity

e) f(0) = 690 ft away from bus stop , f(60.25) = 238.125 ft away from bus stop

Step-by-step explanation:

Part a - see diagram

part b

initial distance from bus stop s0 = 690 ft

distance covered = 7.5*t

s = s0 - distance covered

s = 690 - 7.5*t = f(t)

part c

s = 0 or s = 690

0 = 690 -7.5*t

t = 92 s

Hence domain : 0 < t < 92s time (t) is independent quantity

part d

s = 0 or s = 690

Hence range : 0 < s < 690ft distance from bus stop (s) is dependent quantity because it depends on time (t)

part e

f(0) is s @t = 0

f(0) = 690 ft away from bus stop

f(60.25) is s @t = 60.25

f(60.25) = 690 - 7.5*60.25 = 238.125 ft away from bus stop.

4 0
3 years ago
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