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2 years ago

Please help solve for A

Mathematics

1 answer:

slavikrds [6]2 years ago

7 0

Answer:

Step-by-step explanation:

$\frac{sin 82}{28} =\frac{sin A}{8} \\sin A=\frac{8}{28} \times sin 82\\A=sin^{-1} (\frac{2}{7} \times sin~82) \approx 16.4 ^\circ$

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Q.5(b) The population {(P) in millions} of a country is estimated by the function, P=125e0.035t, t = time measured in years sinc

nekit [7.7K]

Answer:

Hello,

Step-by-step explanation:

Q.5(b) The population {(P) in millions} of a country is estimated by the function, P=125e0.035t, t = time measured in years since 1990. (a) what is the population expected to equal in year 2000 (b) determine the expression for the instantaneous rate of change in the population (c) what is the instantaneous rate of change in the population expected to equal in year 2000.

$P(t)=125*e^{0.035*t}\\a)\\P(2000)=125*e^{0.035*(2000-1990)}=177.38...\\\\b)\\P'(t)=125*0.035*e^{0.035*t}\\\\c)\\\\P'(2000)=125*0.035*e^{0.035*(2000-1990)}=6.2084...$

5 0

3 years ago

The equations 2 x minus y = negative 2, 3 x + 2 y = 5, 4 x minus y = 2, and 22 x + 10 y = 7 are shown on the graph below. On a c

KiRa [710]

Answer:

The correct answer is First option:

$22x+10y=7\\ 2x-y=-2$

Step-by-step explanation:

We are given 4 equations:

$22x+10y=7\\ 2x-y=-2\\3x+2y=5\ and\ \\4x-y=2$

Let us solve the first two:

$22x+10y=7...... (1)\\ 2x-y=-2 ...... (2)$

Multiplying (2) with 10 and adding to (1):

$22x+20x=7-20\\\Rightarrow 42x=-12\\\Rightarrow x = -0.2857 \approx -0.3$

So, approximately, value of x is -0.3.

Putting value of x in (2):

$2 \times -0.3 - y =-2\\\Rightarrow y = -0.6+2\\\Rightarrow y = 1.4$

value of x is approximately -0.3 so y is approximately 1.4.

So, the solution is $\approx$ (–0.3, 1.4)

The correct answer is First option:

$22x+10y=7\\ 2x-y=-2$

The above two equations have a solution approximately (–0.3, 1.4).

3 0

3 years ago

Read 2 more answers

What is the x-intercept of the line

Serjik [45]

Answer:

Step-by-step explanation:

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3 years ago

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Karen purchased 18 bag of “colorful” pebbles to decorate her garden. The 18 bags had a total of 4,356 pebbles. How many pebbles

adoni [48]

Answer:

4,356 divided by 18 is equal to 242 pebbles in each bag.

Step-by-step explanation:

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3 years ago

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Identify the number of solutions: 5x + 4 = 5x + 4

Murrr4er [49]

Answer:

0,4) : not a solution

(-2,4) ; solution

(0,5) : solution

(-2,7) : solution

(-4,1) : not a solution

(-1,1) : not a solution

(-1.5,3.5) : solution

any point that falls in the grey area is a solution....if ur points lie on a dashed line, it is not a solution...but if ur points lie on a solid line, it is a solution

Step-by-step explanation:

6 0

3 years ago