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3 years ago

What's the product and sum

Mathematics

1 answer:

Sladkaya [172]3 years ago

7 0

Answer:

ur mom = gay

Step-by-step explanation:

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Hello I need help with my homework if someone could help me and explain to me how this works that would be great thank you

Tatiana [17]

Answer:

Step-by-step explanation:

5. 17.25-8.25= 9

6. 7+8=15

7. 2*8=16 or 2*9=18

7 0

3 years ago

Read 2 more answers

Does anyone know this?

Marrrta [24]

Answer:

f(-9) = 279

Step-by-step explanation:

f(x) = 4x^2 + 7x + 18

f(-9) = 4(-9)^2 +7(-9) + 18

= 4(81) - 63 + 18

= 324 - 63 + 18

= 279

8 0

3 years ago

Tina rides the bus to school, Theo bikes to school, and Tony walks to school. Their probabilities of being the first one to scho

Pie

Answer:

Tina is first

Tony is first

Theo is first

Step-by-step explanation:

Events with greater probability are more likely.

Let's put the probabilities in decimal form.

P(Tina is first) = 0.05

P(Theo is first) = %85 = 0.85

P(Tony is first) = 1/10 = 0.1

0.05 < 0.1 < 0.85

The events are listed below from least to most likely.

Tina is first, Tony is first, Theo is first

hope it helps

8 0

3 years ago

Read 2 more answers

Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its te

Aleonysh [2.5K]

Answer:

t=5.18 minute

Step-by-step explanation:

Using Newton's law of cooling

$\frac{dT}{dt}=-k(T-T_{s})$

T is temperature of a cup of coffee at any time t $T_{s}$ , is the temperature of the surrounding and k is a constant of proportionality in this negative because temperature is decreasing.

$T(0)=190\\T(1)=170\\T_{s}=66$

$\frac{dT}{dt}=-k(T-T_{s})\\\frac{dT}{(T-T_{s})}=-k*dt\\\int\limits {\frac{1}{T-T_{s} } } \, dT=-\int\limits {k} \, dt\\ln(T-T_{s})=k*t+C\\e*ln(T-T_{s})=e^{k*t+C} \\T-T_{s}=e^{k*t}*e^{C}\\e^{C}=C\\T-T_{s}=e^{k*t}*C\\T=T_{s}+e^{k*t}*C$