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3 years ago

I need help with 4a and 4b

Mathematics

1 answer:

Bas_tet [7]3 years ago

6 0

Complementary angels are two angles that equal 90 when added so S degrees + Z degree = 90 degrees or 50 degree + 40 degree = 90 so forth 4B in comments

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Plz help me, thank you

Kruka [31]

Answer:

$P=40(1.03526)^{t}$

Step-by-step explanation:

<u>Exponential Growth </u>

The natural growth of some magnitudes can be modeled by the equation:

$P=P_o(1+r)^{t}$

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The initial number of bacteria is Po=40 and it doubles (P=2Po) at t=20 min. With that point we can find the value of r:

$2P_o=P_o(1+r)^{20}$

Simplifying:

$(1+r)^{20}=2$

Solving for 1+r:

$1+r=\sqrt[20]{2}$

$1+r=1.03526$

The exponential function that models the situation is:

$\mathbf{P=40(1.03526)^{t}}$

4 0

2 years ago

Construct a right angled triangle XYZ with 90 at angle Y, YZ=7.5cm and XY =6cm

jeyben [28]

Answer:

1 draw a line of 7.5 cm YZ by scale

2 construct the 90 degree with the help of protecter

3 then cut arc of 6 cm on 90 degree of angle & mark as X

4 join X and Z by scale

6 0

3 years ago

Help!! 20points! thank you need by tomorrow.

Yakvenalex [24]

Answer:

1. f(x,y) = (x, -y) 2. f(x,y) = (-x,y).

Step-by-step explanation:

I hope that helps

6 0

3 years ago

Two bicycles are driving on the circle in the same direction with speeds of 9 mph and 5 mph respectively. How many points are th

Molodets [167]

Answer:2

Step-by-step explanation:

3 0

2 years ago

In the triangle below, which equation can<br> be used to solve for x?

aivan3 [116]

The answer is B x=13sin75/sin50

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2 years ago