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3 years ago

Emma has 4 1/2 pounds of birdseed. She wants to divide it evenly among 3 bird feeders. How much birdseed should she put in each?

Mathematics

1 answer:

Anni [7]3 years ago

7 0

Answer:

100 each bird in store and more than 100 depends price

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I don’t understand how to do this

schepotkina [342]

Answer:

The solution is $x =0.$

Step-by-step explanation:

The equation

$\bold{(1).}\: sin(\dfrac{3\pi }{2} +x)+sin(\dfrac{3\pi }{2} +x) =-2$

can be rewritten as

$2* sin(\dfrac{3\pi }{2} +2) =-2$

and can be further simplified to

$sin(\dfrac{3\pi }{2}+x ) =-1$ .

Now, taking the inverse sine of both sides we get:

$sin^{-1}(sin(\dfrac{3\pi }{2} +x) =sin^{-1}(-1)$

$\bold{(2).}\: \dfrac{3\pi }{2} +2 =sin^{-1}(-1)$

The value of the right side on the interval $[0,2\pi)$ is

$sin^{-1}(-1) = \dfrac{3\pi}{2} \: \:( \text{or }270^o)$ ,

which makes the equation (2)

$\dfrac{3\pi }{2}+x =\dfrac{3\pi}{2}$

solving for $x$ gives

$\boxed{x = 0}$

which is our solution.

4 0

3 years ago

I need help I will give brainiest

zhenek [66]

It’s B !!!!!!!!!!!!!!!!!!!!!!

8 0

3 years ago

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Keisha swims 18 ft from one side of her circular pool to the other, swimming straight through the center. She then swims one tim

elena-s [515]

Answer:

Swimming one time around the pool is 56.5 ft

Step-by-step explanation:

Swimming 18 ft from one side of her circular pool to the other, swimming straight through the center means the circular swimming pool has a diameter of d=18 ft.

The circumference of the circle is calculated using:

$c = \pi \: d$

where d=18 is the diameter and π=3.14 as given.

We substitute the values to get:

$c = 3.14 \times 18$

$c = 56.52$

We approximate to the nearest tenth to get:

$c = 56.5ft$

6 0

3 years ago

If (x, 3.4) is a solution to the equation 3x – 5y = 55, what is the approximate value of x?

Whitepunk [10]

The answer is 5(11+y)/3

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3 years ago

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What angle relationship describes ∠UQR and ∠WRT?

sashaice [31]

Answer:

corresponding angles because it is in a F pattern shape

always corresponding angle is denoted from F pattern and its sum is always equal

5 0

3 years ago

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