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alexira [117]
3 years ago
10

What is the length of XY?

Mathematics
2 answers:
Yuki888 [10]3 years ago
7 0

Answer:

5268

Step-by-step explanation:

length of tangents from a point to the circle are equal.

XY=XZ

91b-283=85b+83

91b-85b=83+283

6b=366

b=366/6=61

XZ=91b-283

=91×61-283

=5551-283

=5268

kherson [118]3 years ago
6 0

Answer:

D. 5267

Step-by-step explanation:

In the triangle XY and XZ are tangent to circle C. This means that the length has of XY and XZ are congruent.

So first you have to set the equations to each other to find what b equals to.

85b+83=91b-283

Add 283 to both sides

85b+366=91b

Subtract 85b on both sides

366=6b

Divide by 6

B=61.

Then you substitute 61 as b in the equation for XY.

85b+83

85(61)+83

5185+83

5268

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Evaluate y=x+5 when y=10.
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Answer:

5

Step-by-step explanation:

Subtract 5 to both sides when plugging in 10 for y.  

10=x+5 \\-5      -5⇒5=x

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Hospital A has treated 156 cases of E. coli infection in the past year. Hospital B has treated 51 fewer cases. How many cases di
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Step-by-step explanation:

Subtract 156-51

Fewer shows subtraction

6 0
3 years ago
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Answer:

<em>coefficient</em><em> </em><em> </em><em>because</em><em> </em><em>they</em><em> </em><em>are</em><em> </em><em>not</em><em> </em><em>the</em><em> </em><em>same</em><em> </em><em>so</em><em> </em><em>they</em><em> </em><em>can</em><em> </em><em>not</em><em> </em><em>be</em><em> </em><em>constant</em><em> </em><em>because</em><em> </em><em>it</em><em> </em><em>is</em><em> </em><em>not</em><em> </em><em>the</em><em> </em><em>same</em><em> </em><em>in</em><em> </em><em>every</em><em> </em><em>week</em>

6 0
2 years ago
A closed container has 5.04 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10−24 grams.
MatroZZZ [7]

Answer:

The correct option is the last one (0,84 grams, because (5.04 × 1.67) × (10^23 x 10^-24) = 8.4168 x 10^-1))

Step-by-step explanation:

The first step is to think that you have to multiply the number of atoms for the weight of each atom.

When you work with scientific notation, you should solve the operation for numbers and for the ten base. In this case you solve 5.04 x 1.67 and then the product of the ten bases. For this product you have to sum the exponents of the ten base 23 + (-24) = -1.

Summarizing.... 5.04 x 10^23 x 1.67 x 10^-24 = (5.04 x 1.67) x (10^23x10^-24)  ⇒ 5.04 x 10^23 x 1.67 x 10^-24 = 8.4168 x 10^-1

⇒ 5.04 x 10^23 x 1.67 x 10^-24 = 0,84168.

4 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST Determine the value of h. Round your answer to the nearest hundredth if necessary.
jarptica [38.1K]

Answer:

<h2><u>Answer</u><u> </u><u>:</u><u>-</u></h2>

Here,

At first we know that parallel line cut transversal lines. They make them in a proportion.

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h = 10 × 9/13

h = 90/13

h = 6.92

\\

5 0
3 years ago
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