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3 years ago

ABCDEF - QRSTUV. Find the length of ST.

Mathematics

1 answer:

labwork [276]3 years ago

6 0

Answer:

Option (1)

Step-by-step explanation:

It's given in the question, ABCDEF ~ QRSTUV,

Their corresponding sides will be proportional.

$\frac{AB}{QR}= \frac{BC}{RS}= \frac{CD}{ST}= \frac{DE}{TU}= \frac{EF}{UV}$

Now we choose $\frac{DE}{TU}=\frac{CD}{ST}$

From the figure attached,

$\frac{6}{2.4}=\frac{5.4}{ST}$

ST = $\frac{5.4\times 2.4}{6}$

ST = 2.16

Therefore, Option (1) is the correct option.

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Which confidence level would produce the widest interval when estimating the mean of a population based on the mean and standard

Dvinal [7]

<h3>Answer: A) 99%</h3>

Explanation:

The larger the confidence level, the wider the confidence interval gets. Choice A provides the largest such confidence level.

It's like trying to catch an elusive fish. The wider the net, the more confident that you are likely to catch the fish. The size of the net can be a sort of measure of the confidence level.

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2 years ago

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How can the average rate of change be identified for a function?

Digiron [165]

Answer:

$Rateofchange=\frac{f(x_2)-f(x_1)}{x_2-x_1}$

where x₁ and x₂ are values in the interval [x,y] respectively

Step-by-step explanation:

Well, first to determine the average rate of change of a function, you should have the interval of the values of x for the function.

So lets assume you have a function;

$f(x)=x^3-4x$

And the interval as [1,3]

Then the average rate of change for the function f(x) will be;

$=\frac{f(x_2)-f(x_1)}{x_2-x_1}$

where x₁ and x₂ are the interval coordinates x,y respectively. In this case x₁=1 and x₂=3

To find the average rate of change in this example will be;

$=\frac{f(x_2)-f(x_1)}{x_2-x_1} \\\\=f(x_2)=f(3)=3^3-4(3)=27-12=15\\\\=f(x_1)=f(1)=1^3-4(1)=1-4=-3\\\\\\=x_2-x_1=3-1=2\\\\\\=\frac{15--3}{2} \\\\=\frac{18}{2} =9$

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4 years ago

20 = 9u - 7<br> How do you solve this

Charra [1.4K]

Answer:

U=3

Step-by-step explanation:

Since 9*3=27, and 27-7=20, U=3.

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3 years ago

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∠A and ∠B are vertical angles with m∠A=x and m∠B=3x−60 . What is m∠A ?

quester [9]

As they are vertical angles, their magnitude would be equal.
x = 3x - 60
3x - x = 60
2x = 60
x= 30

In short, Your Answer would be 30

Hope this helps!

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4 years ago

Max bought twice the amount of apples that Jenna bought. Together they bought 18 pounds of apples. How many pounds of apples did

Natali5045456 [20]

2x+x=18

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3 years ago