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Novosadov [1.4K]
3 years ago
10

Plz answer quick giving brainliest

Mathematics
2 answers:
dusya [7]3 years ago
7 0
Simplify using FOIL 15x3+18x+10x2+12
Orlov [11]3 years ago
4 0
The answer is (3x+2)(5x^2+6)
Please mark brainelist
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Donna made a picture frame as a gift for her mom. To make it more stable, she wants to add a brace to the back of it running dia
Komok [63]

Answer:

I think C is the correct answer

4 0
3 years ago
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Emily is entering a bicycle race for charity. Her mother pledges $0.30 for every 0.5 mile she
sashaice [31]

Answer:

The mother will donate $5

4 0
3 years ago
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The equation of the line of best fit is y=3x+2. x=the number of ice cream sales and y= the number of days. Answer the following
Nina [5.8K]

Answer:

all I know is how to get y but y=122

Step-by-step explanation:

y=3(40)+2

y=120+2

y=122

sorry but I dont know what to do for x

3 0
2 years ago
A tank contains 100 gal of brine made by dissolving 80 Ib of salt in water. Pure water runs into the tank at the rate of 4 gal/m
ohaa [14]

Answer:

Step-by-step explanation:

Amount of brine = 100 gal

amount of salt = 80 lb

rate of water running = 4 gal / min

Let A be the amount of salt in lb in the tank at any time t.

(a) dA/dt = rate of salt in - rate of salt out

Rate of salt in = 0

rate of salt out = A x 4 / 100 = A / 25 lb/min

So, dA/dt = 0 - A/25 = - A/25 lb/min

\frac{dA}{A}=-\frac{1}{25}dt

\int \frac{dA}{A}=-\frac{1}{25}\int dt

A(t) = C e^{-0.04t}

When t = 0, A = 80 lb

So,

A(t) = 80 e^{-0.04t}

(b) Now, A = 40 lb

So,

40 = 80 e^{-0.04t}

0.5 = e^{-0.04t}

take log on both the sides

ln 0.5 = - 0.04 t

t = 17.3 minutes

8 0
3 years ago
The stock of Company A gained $1.86 throughout the day and ended at a value of $94.86. By what percentage did the stock rise
Firlakuza [10]

Answer:

tTe answer is 1.96%

Step-by-step explanation:

given data

change in price/gain= $1.86

the closing price = $94.86

Required.

The percent rise.

Step two:

The formula for the percent rise is

=change/close price*100

substitute our given data

= 1.86/94.86*100

=0.0196*100

=1.96%

4 0
3 years ago
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