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svet-max [94.6K]
3 years ago
14

NEED HELP ASAP!! WILL MARK BRAINLIEST!!

Mathematics
1 answer:
Nookie1986 [14]3 years ago
6 0

Step-by-step explanation:

The Chord Intersection Theorem:

If 2 chords of a circle are AB and CD and they intersect at E, then

AE * EB = CE * ED.

Problem.

Two Chords AB and CD intersect  at E.  If AE =  2cm , EB = 4 and CE = 2.5 cm, find the length of ED.

By the above theorem : 2 * 4 = 2.5 * ED

ED = (2 * 4) / 2.5

= 3.2 cm.

is this what u wanted??????????

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Given the function: f(x)=-5x+13, solve when f(3)
ioda
Yo mean evaluate
plug 3 for every x yo see
f(3)=-5(3)+13
f(3)=-15+13
f(3)=-2

f(3)=-2
3 0
4 years ago
When i add or subtract polynomials, the degree adding together too? ex: 5X^3-2X^2+7X^2, the degree staying 3 or 2? or we add the
NemiM [27]
When I add or subtract polynomials, the degree adding together too?
 Ex: 5X^3-2X^2+7X^2, the degree staying 3 or 2? Or we add them?  
Answer:
5X^3-2X^2+7X^2
5 x ^3 + 5 x^2

Adding polynomials: simply add the like terms together. Like terms are terms with the same variables and exponents. <span>

Subtracting polynomials: reverse the sign of each term (in other words turn "+" into "-", and "-" into "+"), then proceed to addition.</span>

Do not add the exponents.



4 0
3 years ago
a survey was conducted among 50 people on the ice cream flavor they like it was found out that 34 like chocolate 18 like manila
Tju [1.3M]

Answer:17.3964 males 7.6035 females

Step-by-step explanation:

The first way to calculate the expected uses the marginal percentages. If sex is not related to flavor preference, you would expect the same percentages of males to prefer the same flavors as females. Since overall 20.71% prefer vanilla, you would expect 20.71% of males to prefer vanilla. Now, 20.71% of 84 people is 17.3964, so this is how many males you would expect to prefer vanilla. You would also expect 20.71% of the females to prefer vanilla, which is 17.6035. So you'd expect 17.3964 males and 17.6035 females to prefer vanilla.

3 0
3 years ago
What is the sum of the whole number from 1 to 2000
lidiya [134]
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5 0
3 years ago
Read 2 more answers
What is the approximate volume of the cone?
Mnenie [13.5K]

Answer:

A. 1206 cm³

Step-by-step explanation:

We have a cone and are asked to find the approximate volume of it.

Keep in mind we are using π for 3.14

The forumla of a cone is V = πr²\frac{h}{3}

We know the radius = 12

and the height = 8

Substitute :

V = π12²\frac{8}{3}

Since these are multiplied with each other, we can first start off with multiplying the fraction, including with factoring 12²:

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Cancel the common factor - 3 :

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Multiply 8 and 3π :

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Solve the exponent :

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Multiply :

V = 384\pi

Multiply for the final answer :

1205.76 cm³

which can be rounded up to

A. 1206 cm³

3 0
3 years ago
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