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3 years ago

I need help with this

Mathematics

1 answer:

White raven [17]3 years ago

3 0

Answer:

$4s^3$ (with no parenthesis)

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Cindy owns a candy store and sells individual candies as well as mixes. Her most popular mixture is the chocolate and mint colle

Ne4ueva [31]

Call chocolate 'c' and mint 'm'.
-> c=3m/5.
Since c+m= 7 (lbs)
->3m/5 + m = 7
Solve m= 35/8 ~4.4 lbs
->c= 2.6 lbs

8 0

3 years ago

Find the mean of the following set of data. Round your answer to two decimal places.23, 50, 49, 48, 49, 32, 37, 40, 41, 42, 41,

tekilochka [14]

Mean is adding all of the values and then dividing them by the number of values there are. Your answer should be 41.23 if my math lacks errors. Hope it helps!

4 0

3 years ago

What is the exact area and arc length of these sectors? Please helppp

Karolina [17]

<u>Answers with step-by-step explanation:</u>

1. Area of sector 1 = $\frac{90}{360} \times \pi \times 12^2 = 36\pi$

2. Area of sector 2 = $\frac{45}{360} \times \pi \times 19^2 = \frac{2527}{8} \pi$

3. Area of sector 3 = $\frac{270}{360} \times \pi \times 15^2 = \frac{675}{4} \pi$

4. Area of sector 4 = $\frac{270}{360} \times \pi \times 6^2 = 27 \pi$

5. Arc length of sector 1 = $\frac{90}{360} \times 2 \times \pi \times 12 = 6\pi$

6. Arc length of sector 2 = $\frac{315}{360} \times 2 \times \pi \times 19 = \frac{133}{4} \pi$

7. Arc length of sector 3 = $\frac{270}{360} \times 2 \times \pi \times 15 = \frac{45}{2}\pi$

8. Arc length of sector 4 = $\frac{270}{360} \times 2 \times \pi \times 6 = 9\pi$

4 0

3 years ago

In the supermarket, there is a scale that measures the weight of fruit and vegetables. The needle is 24 cm long and it rotated 9

Mumz [18]

We find the length of the arc followed by the needle. For this, we first need to convert the subtended angle to radians:
96/∅ = 180/π
∅ = 1.68 rad
S = r∅
S = 24 x 1.68
Distance covered by needle = 40.32 cm

4 0

4 years ago

Read 2 more answers

A company that manufactures racing boats estimates that the profit for selling its brand is given by the following equation.

disa [49]

Answer:

$b = 10$

Step-by-step explanation:

$P(b) = -25b^3 + 750b^2 + 2500b$

This equation shows the income obtained based on the number of boats sold. We want to know the minimum number of boats that must be sold to obtain $ 75 000.

Then we must equalize the equation to 75 000 and clear b.

3 solutions will be obtained (because it is a polynomial of degree 3), and the lowest value will be taken.

$P(b) = 75000$