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3 years ago

Factor this expression completely.

Mathematics

1 answer:

morpeh [17]3 years ago

6 0

3(x-t) + m(x-t) = (3+m)(x-t)

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HELP ME ASAP!!! PLZ PLZ

DanielleElmas [232]

-5/8n= -0.4
Divde both sides by -5/8
n = 0.64

4 0

3 years ago

If your car gets 28 miles per gallon, how much does it cost to drive 350 miles when gasoline costs $2.50 per gallon?

Elan Coil [88]

350 / 28 = 12.5 gallons, so 13 gallons needed

13 X 2.5 = $32.50

3 0

3 years ago

Raul has 4/5 pound of modeling clay. He needs to divide the clay into bags that hold 1/10 pound each. How many bags will he fill

____ [38]

Answer:

The Answer would be 8.

Step-by-step explanation:

I just did a quiz with this exact question

5 0

3 years ago

Dependent quantity dollar per gallon

NeTakaya

Dollars is the dependent quantity because the amount you pay depends on how many gallons you've pumped.

6 0

3 years ago

In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled a

Art [367]

Answer:

The answer is " $\bold{T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5}$ "

Step-by-step explanation:

Given value:

Temp-maximum= $18^{\circ}$

Temp. minimum = $3^{\circ}$

It is halfway between 10 am and 10 pm to 4 am.

The sinus and cosine roles could be used throughout the year to predict fluctuations in climate models. Its type of formula that can be used to model such information is:

$T = A \cos B(t-C) + D,$ where parameters are A, B , C, D, T is the ° C temperature and t is the time (1-24)

$A = amplitude = \frac{(T_{max} - T_{min})}{2}\\\\$

$= \frac{(3 - 18)}{2}\\\\= - \frac{15}{2}\\\\ = -7.5$

$B = \frac{2 \pi}{24}\\\\$

$= \frac{\pi}{12}$

$C = \text{ units translated to the right}= 4$

$D = y_{min} + amplitude = units \ translated \ up\\\\$

D = 7.5 + 3 = 10.5

Its trigonometric function equation that model temperature T hours after midnight in Johannesburg t.

$T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5$

6 0

4 years ago