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WARRIOR [948]
3 years ago
14

Please help me with this page!! I was absent and had the flu, and I need help!! Thankyou!

Mathematics
1 answer:
sashaice [31]3 years ago
7 0
A . 1/15 equals 0.66 b. 5/12 equals 0.4166 c. 1/3 equals 0.333 d. 5/12 equals 4.6 as a round number 8). 0.4 equals 4/10 equals 2/5 9) 7.32 equals 7 3/2 10) 0.2 equals 2/10 equals 1/5 Hope this helps:)
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Is this positive slope or negative slope??
Dimas [21]
A positive slope will always have the line on the graph raising upwards while a negative slope won’t.
4 0
3 years ago
Read 2 more answers
Can anyone help???????????​
Vedmedyk [2.9K]

Given:

The distance between the two buildings on a map = 14 cm

The scale is 1:35000.

To find:

The actual distance in km.

Solution:

The scale is 1:35000.

It means 1 cm on map = 35000 cm in actual.

Using this conversion, we get

14 cm on map = 14\times 35000 cm in actual.

                       = 490000 cm in actual.

                       = 4.9\times 1000o0 cm in actual.

                       = 4.9 km in actual.          [1\text{ km}=100000\text{ cm}]

Therefore, the actual distance between two buildings is 4.9 km.        

5 0
3 years ago
A car dealership sold the following colors of cars in January.
sweet [91]
The answer is A. 28%
7 0
3 years ago
Keisha wants to estimate the percentage of managers at her company that hold an MBA. She surveys 320 managers and finds that 70
kondor19780726 [428]

Answer:

The margin of error is of 0.038 = 3.8%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 320, \pi = \frac{70}{320} = 0.21875

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.645\sqrt{\frac{0.21875(1-0.21875)}{320}}

M = 0.038

The margin of error is of 0.038 = 3.8%.

6 0
4 years ago
Use cylindrical coordinates to calculate the volume above the xy-plane outside the cone z^2 = x^2 + y^2 and inside the cylinder
olchik [2.2K]

Answer:

volume of xy-plane outside the cone = 16π/3

Step-by-step explanation:

using cylindrical coordinates

z² = x² +y² =====>z²=r²=====>z=r

x² + y² =4 ====>r = 2

So, the volume ∫∫∫dV equal

∫(θ = 0 to 2π) ∫(r = 0 to 2) ∫z=0 to r) 1 x (r dz dr dθ) via cylindrical coordinates

= ∫(θ = 0 to 2π) ∫(r = 0 to 2) r² dr dθ

= ∫(θ = 0 to 2π) (1/3)r³ {for r = 0 to 2} dθ

= 2π x 8/3

= 16π/3

4 0
3 years ago
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