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n200080 [17]
3 years ago
14

SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!

Mathematics
2 answers:
lapo4ka [179]3 years ago
7 0

Answer:

-4a^2 -7a^2 - 2ab +3ab +9b^2 -5b^2

11a^2 + ab +4b^2

Step-by-step explanation:

LekaFEV [45]3 years ago
4 0

Answer:

-11a^2+ab+4ab^2

Step-by-step explanation:

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An accident at an oil drilling platform is causing a circular oil slick. The slick is 0.07 foot thick, and when the radius of th
ololo11 [35]

Answer:43.54 ft^3/min

Step-by-step explanation:

Given

Thickness of oil slick=0.07 foot

radius of slick=110 ft

\frac{\mathrm{d} r}{\mathrm{d} t}=0.9 ft/s

Let V be the volume of oil slick

so, V=0.07\pi \cdot r^2

rate of oil flowing is

\frac{\mathrm{d} V}{\mathrm{d} t}=0.07\times 2\pi \cdot r\frac{\mathrm{d} r}{\mathrm{d} t}

\frac{\mathrm{d} V}{\mathrm{d} t}=0.07\times 2\pi \times 110\times 0.9=43.54 ft^3/min

7 0
3 years ago
The slope of the line below is 2. Use the coordinates of the labeled point to find the point-slope equation of the line. 
IgorLugansk [536]

Answer:

A. y + 6= -2(x - 4)

Step-by-step explanation:

Let A(a , b) be a point of the line

and m be the slope.

The equation of the line in Point-slope form :

y - b = m (x - a).

…………………………

Given :

Slope = -2

A(4 , -6)

Then

Point-slope equation : y + 6= -2(x - 4)

6 0
2 years ago
the amount of time it takes to finish a race might be a function of which of the following A. the distance of the race B. the nu
Oksi-84 [34.3K]

Answer:

A

Step-by-step explanation:

this is a because the number of people does not involve the amount of time and the entry fee is just out of the question but the distance is going to affect the speed of the fish and that will affect the time

5 0
3 years ago
Read 2 more answers
Only you have to answer the question 1 from the diagram
Fantom [35]
ADC = 40 + 30 = 70 degrees

DBC is given at 45 deg

AEB = 100 degrees, vertical angle from intersecting lines

BCD = 50 + 50 = 100 degrees

5 0
3 years ago
Answer quickly pls pls pls
ankoles [38]
Third option
divide the exponent by 2
(C)
6 0
2 years ago
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