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2 years ago

Help me please!!! Whats the length for w?

Mathematics

2 answers:

KIM [24]2 years ago

8 0

Son=40 hope this helps

Ostrovityanka [42]2 years ago

3 0

Answer:

(The second option) sin40° = w / 28 

Step-by-step explanation:

sin40° = opposite / hypotenuse

sin40° = w / 28

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What’s the answer???

azamat

Answer:

C = 6.28 in.

A = 3.14 in.^2

Step-by-step explanation:

C = (pi)d

C = 3.14 * 2 in.

C = 6.28 in.

A = (pi)r^2

r = d/2 = 2 in./2 = 1 in.

A = 3.14 * (1 in.^2)

A = 3.14 in.^2

7 0

2 years ago

Read 2 more answers

The numerical value of the quantities expressed by the numbers and letters on the left side of the equation (equal sign) is equa

pashok25 [27]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

In the question, the choices are missing that why it correct can be defined as follows:

The correct choice is "What else the equivalent (=) sign indicates on both sides of every equation".

6 0

3 years ago

A competitive knitter is knitting a circular place mat. The radius of the mat is given by the formula

Ilia_Sergeevich [38]

Answer: A. $A'(t)=\frac{4356\pi}{(t+11)^{3}}-\frac{527076\pi}{(t+11)^{5}}$

B. A'(5) = 1.76 cm/s

Step-by-step explanation: Rate of change measures the slope of a curve at a certain instant, therefore, rate is the derivative.

A. Area of a circle is given by

$A=\pi.r^{2}$

So to find the rate of the area:

$\frac{dA}{dt}=\frac{dA}{dr}.\frac{dr}{dt}$

$\frac{dA}{dr} =2.\pi.r$

Using $r(t)=3-\frac{363}{(t+11)^{2}}$

$\frac{dr}{dt}=\frac{726}{(t+11)^{3}}$

Then

$\frac{dA}{dt}=2.\pi.r.[\frac{726}{(t+11)^{3}}]$

$\frac{dA}{dt}=2.\pi.[3-\frac{363}{(t+11)^{2}}].\frac{726}{(t+11)^{3}}$

Multipying and simplifying:

$\frac{dA}{dt}=\frac{4356\pi}{(t+11)^{3}} -\frac{527076\pi}{(t+11)^{5}}$

The rate at which the area is increasing is given by expression $A'(t)=\frac{4356\pi}{(t+11)^{3}} -\frac{527076\pi}{(t+11)^{5}}$ .

B. At t = 5, rate is:

$A'(5)=\frac{4356\pi}{(5+11)^{3}} -\frac{527076\pi}{(5+11)^{5}}$

$A'(5)=\frac{4356\pi}{4096} -\frac{527076\pi}{1048576}$

$A'(5)=\frac{2408693760\pi}{4294967296}$

$A'(5)=1.76268$

At 5 seconds, the area is expanded at a rate of 1.76 cm/s.

5 0

2 years ago

The lines on the graph below represent the cost of apples at four different stores.

katen-ka-za [31]

At Store A is the cost of apples the least. This is because it always has the lowest price for each pound compared to the other lines. Hope this helps!

5 0

2 years ago

Read 2 more answers

Express 4x−7y=14 in slope-intercept form. Enter your answers in the boxes.

devlian [24]

Y=2 7x2= 14
X= 7 4x7=28
28-14=14

5 0

2 years ago