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Virty [35]
3 years ago
15

(2x + 3) + (4x + 5) please help im really confused

Mathematics
1 answer:
luda_lava [24]3 years ago
8 0

Answer: it's 6x + 8 if you solve it

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A kite is flying at a height of 60 m and is attached to a string inclined at 30° to the horizontal. What is the length of the st
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Step-by-step explanation:

Because it is

5 0
3 years ago
A small explanation would be really appreciated​
shutvik [7]

Step-by-step explanation:

the 2 angles marked with orange and green are equal becos the question said that the indicated angles are congruent meaning same deg. so 180 - that given angle = the 2 marked angles (based on the rule known as angles on a str line are supplementary)

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7 0
3 years ago
HHHEEEEEELP PLEASE!!!! NEED ASAP!!!! HUUUURRRRYYYY
Monica [59]

Answer:

idk im dumb just like you dude


Step-by-step explanation:


4 0
3 years ago
When a water-cooled nuclear power plant is in operation, oxygen in the water is transmuted to nitrogen-17. After the reactor is
wolverine [178]

Answer:

The differential equation is \frac{dR}{dt} = -kR

Step-by-step explanation:

Differential equation for the rate of change in radiation level:

Radiation level is R.

Rate of change indicates that the radiation level R varies in function of time t, which mathematically means that we have:

\frac{dR}{dt}

After the reactor is shut down, the radiation from the nitrogen-17 decreases in such a way that the rate of change in the radiation level is directly proportional to the radiation level.

Rate of change is k. Decreases means that k is negative. Proportional to the radiation level of R means that -k multiplies R. So the differential equation is:

\frac{dR}{dt} = -kR

7 0
3 years ago
Chang is 6 inches taller than nancy. Use n for nancy’s height in inches. Write an expression to represent chang's height. Then e
Irina-Kira [14]

Answer:

Expression Chang:

N+6

If N = 60

Then 60+6=66

Chang is 66 inches

Step-by-step explanation:

3 0
2 years ago
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