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3 years ago

3(n+5)≥3n+8 Solve for n a.n≥23 b. all real numbers c. no solution d. n≥7

Mathematics

1 answer:

Westkost [7]3 years ago

7 0

all real numbers are greater than or equal to the equation

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At noon, you are running to get to class and notice a friend 100 feet west of you, also running to class. If you are running sou

Virty [35]

Answer:

Step-by-step explanation:

Velocity of first Person $v_1=450 ft/min$

Velocity of second Person $v_2=350 ft/min$

Distance between them P=100 ft

Let x be the distance moved by 1 st and y be the distance moved by second person by the time 12:02 PM

In Triangle ABC

$BC=350 t+450 t$

$BC=800 t$

using Pythagoras

$AC^2=AB^2+BC^2$

$AC^2=100^2+(800t)^2$

differentiating with respect to time

$2\times AC\times \frac{\mathrm{d} AC}{\mathrm{d} t}=2\times (800t)\times 800$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=\frac{800^2\times t}{AC}$

AC after 2 minute

$AC=1603.121 ft$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=\frac{800^2\times 2}{1603.121}$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=\frac{64\times 10^4\times 2}{1603.121}$

$\frac{\mathrm{d} AC}{\mathrm{d} t}=798.44 ft/min$

4 0

3 years ago

Which transformations can be used to carry ABCD onto itself? The point of rotation is (3, 2). Check all that apply.

gavmur [86]

Answer:

The correct answer for this question is Reflection across the line x=3 and Reflection across the line y=2.

Step-by-step explanation:

3 0

3 years ago

Two candidates ran for class president. The candidate that won received 70% of the 350 total votes. How many votes did the winni

labwork [276]

Answer:

49 votes

Step-by-step explanation:

Because 70% of the 350 is 49

3 0

3 years ago

Evaluate f (x) = 2 x torx =-5.

Bingel [31]

Answer:

-10.

Step-by-step explanation:

f(x) = 2x, x = -5.

f(-5) = 2(-5)

= 2 * (-1) * 5

= 10 * (-1)

= -10.

Hope this helps!

4 0

3 years ago

Please help me!! Thank you

mrs_skeptik [129]

Answer:

The area of the circle is 153.86. Plz give me brainliest!

Step-by-step explanation:

3 0

3 years ago

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