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Paraphin [41]
3 years ago
5

Evaluate 2p - 99 for p = 7 and g = 6. The value of the expression is

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

(2 \times 7) - (9 \times 6) =  - 40

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Neporo4naja [7]
Um that's gotta be a least hold up nevermind
3 0
3 years ago
How do I solve this linear inequality?<br> 5x - 7 &gt; 4x + 8
uysha [10]

Step-by-step explanation:

just like an equation.

5x - 7 > 4x + 8 | -4x + 7

x > 15

and that is your result.

in contrast to an equation, an inequality delivers a range as result and not a single point.

3 0
2 years ago
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Find the area of the shaded region.
Fofino [41]

Answer:

21.46 cm²

Step-by-step explanation:

So we need to find the r for the circle

r=10/4=5/2

so  the area of one circle is Ac=πr²

Ac=π(5/2)²=25/4π

and there are 4 of them: 25/4π*4=25π=78.54

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100-78.54=21.46 cm²

4 0
3 years ago
In a random sample of 81 audited estate tax​ returns, it was determined that the mean amount of additional tax owed was ​$3408 w
pav-90 [236]

Answer:

B. One can be​ 90% confident that the mean additional tax owed is between the lower and upper bounds.

Step-by-step explanation:

Given:

n= 81

\bar{x}=3408

\sigma= 2565

Solution:

A confidence interval, in statistics, refers to the probability that a population parameter will fall between two set values for a certain proportion of times. Confidence intervals measure the degree of uncertainty or certainty in a sampling method. A confidence interval can take any number of probabilities, with the most common being a 95% or 99% confidence level.

Confidence interval = \bar{x} \pm z * \frac{\sigma}{\sqrt{n}}

To Find the z  value:

Degree of freedom = n-1

=>81- 1

=> 80

Significance level = 1- confidence level

=>\frac{(1-\frac{90}{100})}{2}

=>\frac{(1-0.90)}{2}

=> \frac{0.1}{2}

=>0.05

using this value In T- Distribution table we get

z =  1.645

Substituting the values  we have,

confidence interval = 3408\pm 1.645 * \frac{2565}{\sqrt{81}}

confidence interval = 3408\pm 1.645 * \frac{2565}{\sqrt{9}}

confidence interval = 3408\pm 1.645 * 285

confidence interval = 3408\pm 468.825

confidence interval= (2939.18, 3876.83)

6 0
3 years ago
Jordan bought 9/16 of a pound of sunflower seeds and divided them evenly into 9 snack bags for his lunch. What is the weight of
Marina86 [1]
The answer would be 1/16 of a pound
3 0
3 years ago
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