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brilliants [131]

3 years ago

9

Is the system of equations consistent, consistent and coincident, or inconsistent? Y=-x-1 / 3y=-3x+2

1 answer:

Neporo4naja [7]3 years ago

3 0

I hope this helps you

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The sum of two consecutive numbers is<br> thirty-five, what are the numbers?

777dan777 [17]

Answer: 17 and 18.

Step-by-step explanation: <em>The simple way is to divide 35 by 2 i.e, 35/2 = 17.5 and take the preceding and succeeding whole numbers. In this case, 17 and 18.</em>

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5 0

2 years ago

Read 2 more answers

Mary has 1/4 of a tank of gas.A quarter or a tank is equal to 5 gallons how many gallons does her tank hold

Naddika [18.5K]

20 gallons

5 times 4 is 20

Hope this helps and have a great day!

7 0

3 years ago

Which algebraic expression represents “Marcus practiced the trumpet twice as long this week”?

Maksim231197 [3]

Answer:

2p

Step-by-step explanation:

u got ig??

8 0

3 years ago

A detective finds a victim of murder at 9 am. At that time, the temperature of the body is 90.3 degrees F. One hour later, the b

LekaFEV [45]

Answer:

Step-by-step explanation:

Given

at 9 am temperature of the body is $90.3^{\circ}F$

1 hr later temperature $89^{\circ}F$

Temperature of room $T=68^{\circ}F$

According to newtons law

$\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-T_{room}\right )$

$\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-68\right )$

$\frac{dT}{T-68}=-kdt$

Integrating

$=\int \frac{dT}{T-68}=-kdt$

$\ln |T-68|=-kt+c$

$T-68=Ae^{-kt}$

Now at 9 am i.e. t=0,

$90.3=A+68$

$A=22.3$

At 10 am i.e. t=1 hr T=89

$89-68=22.3e^{-k}$

$e^{-k}=21$

$k=0.06006$

Temperature of Normal human body is $T=98.6 ^{\circ}F$

$98.6-68=e^{-0.06006t}$

$30.6=e^{-0.06006t}$

Taking log both sides

$t=-5.27$

i.e. 5 hr and 16.2 min

i.e. victim murdered at 3 am and 43.8 min

7 0

3 years ago

HELP PLEASE GIVE RIGHT ANSWER Screenshot below

cluponka [151]

The answer would be Isosceles Acute.

Isosceles is when the triangle has two sides of equal length.

And since each of the corners are acute, it would be isosceles acute.

3 0

3 years ago