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Mariana [72]
3 years ago
5

John is five years older than his sister. The product of their present ages is 150.

Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0
Took 3 of us in grade 10 but johns present age is 77.5 and his sister is 72.5
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P(−2, 3), Q(5, 3), R(5, −1), S(−2, −1) The perimeter of the figure is a units.
Nina [5.8K]
The perimeter of the figure is 22 units.
4 0
3 years ago
Perform the Indicated operatlon.<br>(-10) ÷ (-20)<br>a)-2<br>b)2<br>c)1/2<br>d)-1/2​
Nuetrik [128]

Answer:c

Step-by-step explanation of the

(-10)/(-20)

-1/(-2)

Negative sign result in positive result, so

1/2; c

4 0
4 years ago
please help me for this problem...yoko estimates that the product of 48 and 53 is 250.is that reasonable?why or why not?
Pavel [41]
No because
48 times 53=2544
his estimate is way off- it is off by (2544-250)= 2294
4 0
4 years ago
Read 2 more answers
1/7(14r+28)=2(r+2)???
Pie
After distributing you get this equation. 2r+4 =2r+4 since it's the same expression on both sides the answer would be r=All real numbers because no matter whatever real number u put for r it will come out the same on both sides
7 0
4 years ago
Explain the difference between linear, exponential, and quadratic functions in terms of their graphs, their patterns, and their
Kipish [7]

Answer:

Quadratic functions are those where their rate of change changes at a constant rate. Exponential functions are those where their rate of change is proportional to itself.

An example of a quadratic function would be the shape that a ball makes when you throw it. Gravity causes a constant acceleration, the ball slows down as it is moving up, and then it speeds up as it comes down.

An example of an exponential function would be the population of a bacterium as long as there is enough space and nutrients or how your money grows with compound interest in a bank.

A quadratic function is one in the form

f(x)=ax2+bx+c  

It’s rate of change (first derivative) is linear.

f′(x)=2ax+b  

The rate of the rate of change (second derivative) is constant.

f′′(x)=2a  

Quadratics are then the solutions to the differential equation

f′′=C  

An exponential function is one in the following form.

g(x)=Aekx  

It’s rate of change is another exponential function.

g′(x)=Akekx  

So exponentials are the solutions to the differential equation

g′=kg

Step-by-step explanation:

Yes. : )

8 0
3 years ago
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