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2 years ago

PLS HELP <3 !! ILL MARK U BRAINLIST

Mathematics

1 answer:

djyliett [7]2 years ago

5 0

Answer:

See below

Step-by-step explanation:

11 = 12 = 15 = 16 = 51 each vertical angles are congruent

10 + 11 = STRAIGHT LINE = 180 so 10 = 129 degrees

10 = 13=14 = 17 = 129 degrees each vertical angles are congruent

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4 years ago

Adam is building birdhouses that requires 1/2-ft-long boards. How many pieces that are exactly 1/2 ft long can be made from a bo

Julli [10]

Answer:

Step-by-step explanation:

Adam is building birdhouses that requires $\frac{1}{2}$ i.e 0.5 feet long boards.

Now, he has an $8\dfrac{1}{4}$ i.e. 8.25 feet longboard and wants to cut each 0.5 feet longboards.

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4 0

3 years ago

How do I solve this? can someone please help? thank you! y=3x+4 y=x-2

Alecsey [184]

Answer:

Step-by-step explanation:

y = 3x+4 and y = x-2

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8 0

3 years ago

The radius of a circle is decreasing at a rate of 6.56.56, point, 5 meters per minute. At a certain instant, the radius is 12121

Ilia_Sergeevich [38]

Answer:

The rate of change of the area of the circle is approximately $-490.09 \ m^2/min$ .

Step-by-step explanation:

Given:

$\frac{dr}{dt} = -6.5 \ m/min$

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We need to find the rate of change of the area of the circle at that instant.

Solution:

Now we know that;

Area of the circle is given by π times square of the radius.

framing in equation form we get;

$A= \pi r^2$

to find the rate of change of the area of the circle at that instant we need to take the derivative on both side.

$\frac{dA}{dt}=\frac{d(\pi r^2)}{dt}\\\\\frac{dA}{dt}= 2\pi r \frac{dr}{dt}$

Substituting the given values we get;

$\frac{dA}{dt}= 2\times \pi \times 12 \times -6.5\\\\\frac{dA}{dt}\approx -490.09 \ m^2/min$

Hence The rate of change of the area of the circle is approximately $-490.09 \ m^2/min$ .

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3 years ago

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romanna [79]

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7 0

3 years ago