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barxatty [35]
3 years ago
11

Solve by taking the square root of both sides 4(x-4)^2-180=0

Mathematics
1 answer:
arsen [322]3 years ago
5 0

Answer:

x = 4 ± 3\sqrt{5}

Step-by-step explanation:

Given

4(x - 4)² - 180 = 0 ( add 180 to both sides )

4(x - 4)² = 180 ( divide both sides by 4 )

(x - 4)² = 45 ( take the square root of both sides )

x - 4 = ± \sqrt{45} = ± 3\sqrt{5}

Add 4 to both sides

x = 4 ± 3\sqrt{5}

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Is this a proportional relationship c=7n+2
just olya [345]

Answer:

no

Step-by-step explanation:

A proportional relationship must go through (0,0)

c=7n+2

0 = 7(0) +2

0 = 2

This is not true so it is not a proportional relationship

8 0
3 years ago
Eastern Meats pays its delivery workers regular time for up to 36 hours per week and
Cloud [144]

Answer:

42-36=6

42+6=48

545.28 / 48=11.36

11.36

8 0
3 years ago
Kumar bought some mangoes. The price of each mango () is found to be 6 more than the total number of mangoes bought by him and t
spayn [35]

Answer:

Price = 20, Amount = 14

Step-by-step explanation:

A = Amount of Mangoes

P = Price for 1 Mango

P = A + 6

280 = P * A

insert A+6 for P

280 = (A+6) * A

280 = 6A + A²

280=1*a^2+6*a  | Vertausche beide Seiten der Gleichung.

1*a^2+6*a=280  | quadratische Ergänzung: ergänze auf beiden Seiten (3)^2

1*a^2+6*a+(3)^2=3^2+280  | Rechne 3 hoch 2 aus.

1*a^2+6*a+(3)^2=9+280  | addiere 9 und 280

1*a^2+6*a+(3)^2=9+280  | Fasse die rechte Seite mit Hilfe der binomischen Formel zusammen.

1*(1*a+(3))^2=289  | Auf beiden Seiten Quadratwurzel ziehen.

1*a+(3)=+-*289^0.5  

1*a_1+(3)=289^0.5  

1*a_1+3=289^0.5  | Ziehe die Wurzel aus 289

1*a_1+3=17  | -3

1*a_1=14  

8 0
3 years ago
A rectangle has a length of 10 inches and a width of 8 inches
Serjik [45]
I’m assuming you want to work out the area
area = length x width
area = 10 x 8
area = 80 inches^2
3 0
3 years ago
PLS I RLLY NEED HELP I MIGHT GIVE BRAINLIEST Just pls help
Lena [83]

Answer:

y=3x-7

step by step explaination:

4 0
3 years ago
Read 2 more answers
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