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aliya0001 [1]
3 years ago
7

Simplify (2x + 5y)(3x – 7y) - 2xy Helpppp

Mathematics
1 answer:
storchak [24]3 years ago
3 0
If you want a faster way to get these things solved, use the math papa algebra calculator
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The daily calorie intake for a rider in the Tour de France is 3500 calories. If the race for the day is 4 hours, about how many
stepan [7]

Answer:

875 calories per hour

Step-by-step explanation:

To find out how much calories would be used per hour you have to divide 3500 calories by 4 hours to get 875 calories. Hope this helps :)

4 0
3 years ago
(40 POINTS)
Y_Kistochka [10]

Answer:

1.  f(0) =  501170

2.  decreasing

3.  2% decrease

4. 302438

Step-by-step explanation:

In 1995 x=0

f(x) = 501170(0.98)^0

f(0) =  501170

The population is decreasing since we are multiplying by .98 ^x

.98 is less than 1 so it is getting smaller each time.

1 -.98 = .02

It is decreasing by 2 % each year

2020-1995  =25 years

f(25) = 501170(0.98)^25

        =302438.41862

Rounding to the nearest whole number

          302438

7 0
4 years ago
A particle moves along the curve y=7 x 2+4y=7 x 2+4 in such a way that its xx-coordinate is changing at a rate of −5−5 centimete
ArbitrLikvidat [17]

Answer:

The y-coordinate is changing by the rate of -70 cm per sec.

Step-by-step explanation:

Given equation,

y = 7x^2 + 4

Differentiating with respect to time (t),

\frac{dy}{dt}=14x \frac{dx}{dt}

We have,

\frac{dx}{dt}=-5\text{ cm per sec}, x = 1

\frac{dy}{dt} = 14(1)(-5)=-70\text{ cm per sec}

7 0
3 years ago
Solve the equation for x, in simplest form
Assoli18 [71]

Answer:

5/6

Step-by-step explanation:

5 0
3 years ago
Subtract: (3x- 7x² + 2) – (4x2 - 5 + 6X)
katrin [286]

Answer:

−7(x−-143− 65)(x− 4/65+3)

Step-by-step explanation:

i  hope its right

3 0
3 years ago
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