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tankabanditka [31]
3 years ago
14

Question 2 of 10

Mathematics
1 answer:
pickupchik [31]3 years ago
6 0

Answer:

B. 12.5%

Step by step explanation:

$400=$50fee

$200=$25fee

$100=$12.5fee

You might be interested in
The volume of a rectangular box is 2x(2x + 5)(2x – 3). (Drawing is not to scale.)
Anarel [89]

Answer:

Option B. The volume is the product of the area of the base, 2x(2x + 5), and the height, 2x – 3

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

The volume of a rectangular prism is equal to

V=BH

where

B is the area of the base of the prism

H is the height of the prism

In this problem we have

The area of the base B is equal to

B=2x(2x+5)\ units^2

The height H is equal to

H=2x-3\ units

therefore

The volume is equal to

V=2x(2x+5)(3x-3)\ units^3

The volume is the product of the area of the base, 2x(2x + 5), and the height, 2x – 3

5 0
3 years ago
There are a total of 20 lions, tigers and bears. If the number of tigers is 2 more than the number of lions and the number of be
erica [24]
Number of tiguers: x + 2
Number of Lions:  x
Number of bears:(x+2)+1=(x+3)

We can suggest this equation:
(x+2) + (x)+(x+3)=20

3x+5=20
3x=20-5
3x=15
x=15/3
x=5.

Therefore:
Number of tiguers: x + 2=5+2=7
Number of Lions:  x=5
Number of bears:(x+2)+1=(x+3)=5+3=8.

Answer: there are 7 tiguers, 5 lions and 8 bears.


8 0
4 years ago
A triangular pyramid has a height of 9 yards and a base with an area of 24 square yards. What is the volume of the pyramid?
HACTEHA [7]

Answer:

1728 yds

Step-by-step explanation:

7 0
3 years ago
Please tell me please
Dmitry_Shevchenko [17]

Answer: 35%

Step-by-step explanation:

20 bars

7 unshaded - not installed

7/20 = 0.35 = 35%

8 0
3 years ago
An article describes the chemical compositions of certain minerals in the early Archaean mantle. For a certain type of olivine a
Ket [755]

Answer:

The mean is 40.35 and the standard deviation is 0.13.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a certain type of olivine assembly, the silicon dioxide (SiO2) content (in weight percent) in a randomly chosen rock has mean 40.35 and standard deviation 0.4.

Sample of 10:

By the Central Limit Theorem, the mean is 40.35, and the standard deviation is s = \frac{\sigma}{\sqrt{n}} = \frac{0.4}{\sqrt{10}} = 0.13

The mean is 40.35 and the standard deviation is 0.13.

5 0
3 years ago
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