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2 years ago

9

PLEASE HELP ASAP!! I WILL MARK BRAINIEST!! LOOK AT PHOTO

1 answer:

dusya [7]2 years ago

3 0

Answer:

True

Step-by-step explanation:

$\frac{5^{4} }{5^{2} } = \frac{5*5*5*5}{5*5} = 5*5 = 5^{2}$

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A pyramid has a square base with sides 100 feet long. The original height was 75 feet.

viva [34]

Step-by-step explanation:

<u>Step 1: Find the volume of the original pyramid</u>

<u /> $V = a^2*\frac{h}{3}$

$V=(100)^2*\frac{75}{3}$

$V=10000*25$

$V=250000$

<u>Step 2: Find the volume of the cut off</u>

<u /> $V=(20)^2*\frac{15}{3}$

$V = 400*5$

$V=2000$

<u>Step 3: Find the percent that still remains</u>

<u /> $250000-2000$

$248000$

$248000 / 250000$

$0.992*100$

$99.2$

Answer: 99.2%

8 0

3 years ago

Read 2 more answers

Given g(x) = x2-8x-20, which statement is true?

sveticcg [70]

Answer:C

Step-by-step explanation:

3 0

2 years ago

The sales decay for a product is given by S = 70000e^ -0.8x where S is the monthly sales and x is the number of months that have

Gre4nikov [31]

Answer:

After 5.31 months sales will drop below 1000 and 5 months after the end of the campaign sales will be 1282.09

Step-by-step explanation:

Let's find the solutions for the two questions.

First question: How many months after the end of the campaign will sales drop below 1000.

Because the problem asks for how many months, and since 'x' represents month variable, then the problem is asking for 'x'.

Using the same equation for sales we can observe the following:

$S=70000*e^{-0.8X}$ , but we have S which is 1000, so:

$1000=70000*e^{-0.8X}$ which is equal to:

$1000/70000=e^{-0.8X}$ which is equal to:

$1/70=e^{-0.8X}$ by applying ln(x) properties:

$ln(1/70)=ln(e^{-0.8X})$ which is equal to:

$ln(1/70)=-0.8X$ which is equal to:

$ln(1/70)/(-0.8)=X$ so:

$X=5.31 months$

Second question: what will be the sales 5 months after the end of the campaign.

Because the problem asks for what will be the sales, and since 'S' represents the sales, then the problem is asking for 'S'.

Using the same equation for sales we can observe the following:

$S=70000*e^{-0.8X}$ , but we have x which is 5 months, so:

$S=70000*e^{-0.8*5}$ which is equal to

$S=1282.09$

In conclusion, after 5.31 months sales will drop below 1000 and 5 months after the end of the campaign sales will be 1282.09.

8 0

3 years ago

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu.Assume that the

worty [1.4K]

Answer:

<em>95% confidence interval for the true mean cholesterol content of all such eggs.</em>

<em>(173.8175 , 196.1825)</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given mean of the sample x⁻ = 185 milligrams</em>

<em>Given standard deviation of the sample 'S' = 17.6 milligrams</em>

<em>Level of significance </em>

<em> ∝ = 0.05</em>

$t_({\frac{\alpha }{2} , n-1 }) = t_{0.025 ,11} = 2.2010$

<u><em>Step(ii)</em></u>:-

95% confidence interval for the true mean cholesterol content of all such eggs.

$(x^{-} - t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} } , x^{-} + t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} })$

$(185 - 2.2010 \frac{17.6}{\sqrt{12} } , 185 + 2.2010 \frac{17.6}{\sqrt{12} })$

( 185 - 11.1825 , 185 + 11.1825)

(173.8175 , 196.1825)

<u><em>Final answer:-</em></u>

<em>95% confidence interval for the true mean cholesterol content of all such eggs.</em>

<em>(173.8175 , 196.1825)</em>

<u><em></em></u>

3 0

3 years ago

2. The ( + 3)( – 3) is a factored form of equation ______. A. 2 – 3 = 0 B. 2 2 = 9 C. 2 – 9 = 0 D. 2 + 32 = 0

Yuliya22 [10]

Step-by-step explanation:

<h3><em><u>2</u></em><em><u>-</u></em><em><u>3</u></em><em><u>=</u></em><em><u>0</u></em></h3>

<em><u>2</u></em><em><u>2</u></em><em><u>=</u></em><em><u>9</u></em>

<em><u>2</u></em><em><u>-</u></em><em><u>9</u></em><em><u>=</u></em><em><u>0</u></em>

<em><u>2</u></em><em><u>+</u></em><em><u>3</u></em><em><u>2</u></em><em><u>=</u></em><em><u>0</u></em>

7 0

3 years ago