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Nitella [24]
3 years ago
5

What is the measure of the secant DE?

Mathematics
1 answer:
ladessa [460]3 years ago
4 0
Using the formula (AB +BC) *BC = (DE +CD) *CD

fill i n what is known:

(17 + 4) *4 = (DE +6) *6

21*4 = (DE +6)*6

84 = (DE+6)*6

84/6 = DE+6

14 = DE +6

DE = 14-6
DE = 8
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Brainliestttt UsaTestPrep
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The answer to this question is:

36π cm³

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6 0
2 years ago
You have some turtles and some pelicans. Together there are 114 legs and a total of 34 animals. How many of each animal are ther
Ann [662]

Let t and p represent the numbers of turtles and pelicans, respectively.

... 2p + 4t = 114 . . . . . . . the number of legs is 114

... p + t = 34 . . . . . . . . . the number of animals is 34

Divide the first equation by 2 and subtract the second.

... (2p +4t)/2 - (p +t) = (114)/2 - 34

... t = 23 . . . . . . . . . . . . . . . . . . . . . . simplify

Then p = 34 - t = 11

There are 11 pelicans and 23 turtles.

_____

You can get to the same answer by considering the number of legs you would have if all the animals were pelicans. That would be 34*2 = 68. The is 46 fewer legs than there actually are. Each turtle that replaces one of those 34 pelicans adds 2 legs to the total, so to add 46 legs, we must replace 46/2 = 23 pelicans with turtles. That is, there are 23 turtles and 11 pelicans.

4 0
3 years ago
The two-way table shows the number of students in a class who like mathematics and/or science. Like Mathematics Do Not Like Math
coldgirl [10]

The missing number is 20.

<h3>What is the missing number?</h3>

Subtraction is the mathematical operation that is used to find the difference between two or more numbers.

In order to find the missing number, subtract the total number of people who like science and mathematics from the total number of people who like science

38 - 18 = 20

To learn more about subtraction, please check: brainly.com/question/854115

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7 0
1 year ago
Can someone help me ! thx!!
Bond [772]
It should be 100 because it has to add up to 180 and 50+30=80 so the third angle must be 100
5 0
2 years ago
A table is on sale for 26 % off. The sale price is $ 333 . What is the original price?
Svetllana [295]

Answer:

$450

Step-by-step explanation:

The sale price is computed from ...

... sale price = original price - discount

where ...

... discount = (original price) × 26%

Putting these together, we get ...

... sale price = (original price) - 0.26×(original price)

... sale price = (original price) × (1 - 0.26) = 0.74×(original price)

Dividing by 0.74, we find ...

... original price = (sale price)/0.74

... $333/0.74 = $450 = original price

6 0
3 years ago
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