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patriot [66]
3 years ago
11

The layer of gold coating on a ring should be 0.03 millimeters thick when the ring is completed. A coating of 0.021 millimeters

has already been applied. How many more millimeters of gold coating must be added to finish the ring?
Mathematics
2 answers:
Anvisha [2.4K]3 years ago
3 0
0.03-0.021 = 0.009mm more coating needed
pishuonlain [190]3 years ago
3 0

0.009millimeters is correct answer


Step-by-step explanation:


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Circle A is shown. Secant W Y intersects tangent Z Y at point Y outside of the circle. Secant W Y intersects circle A at point X
Gekata [30.6K]

By applying the theorem of intersecting secants, the measure of angle XYZ is equal to: A. 35°.

<h3>How to determine angle <XYZ?</h3>

By critically observing the geometric shapes shown in the image attached below, we can deduce that they obey the theorem of intersecting secants.

<h3>What is the theorem of intersecting secants?</h3>

The theorem of intersecting secants states that when two (2) lines intersect outside a circle, the measure of the angle formed by these lines is equal to one-half (½) of the difference of the two (2) arcs it intercepts.

By applying the theorem of intersecting secants, angle XYZ will be given by this formula:

<XYZ = ½ × (m<WZ - m<XZ)

Substituting the given parameters into the formula, we have;

<XYZ = ½ × (175 - 105)

<XYZ = ½ × 70

<XYZ = 35°.

By applying the theorem of intersecting secants, we can infer and logically deduce that the measure of angle XYZ is equal to 35°.

Read more on intersecting secants here: brainly.com/question/1626547

#SPJ1

6 0
2 years ago
Please help :(<br><br>thank you!
harina [27]

Answer:

pls stop deleting my answers brainly thx. also its b! ^-^

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The security system in a house has two units that set off an alarm when motion is detected. Neither one is entirely reliable, bu
Mariulka [41]

Answer:

Probability that detector B goes off is '0.615'

Step-by-step explanation:

Given that:

1) Probability that detector A goes off and detector B does not go off is 0.25.

2)Probability that detector A does not go off is 0.35.

3)Probability that detector A  goes off is (1-0.35)=0.65

Assuming that

Probability that detector B goes off is 'p' Hence the probability that detector B does not goes off  is (1-p)

Thus the probability that detector A goes off and detector B does not go off is  product of the individual probabilities

P(E)=0.65\times (1-p)\\\\0.65\times (1-p)=0.25\\\\0.65-0.65p=0.25\\\\0.65-0.25=0.65p\\\\\therefore p=\frac{0.40}{0.65}=0.615

Probability that detector B goes off is '0.615'

5 0
3 years ago
3m-2-5nP<br> terms<br> coefficients:
Nataly_w [17]

Answer:

3m=9np

Step-by-step explanation:

3m-2-5np

     +4  +4

3m=9np

9-2=?

-2

x-7

3 0
3 years ago
Walmart sells birthday cakes for $18 after three days, they mark down the cakes by 45%. What is the discounted price
Misha Larkins [42]

Answer:

$9.90

Step-by-step explanation:

5 0
3 years ago
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