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kaheart [24]
4 years ago
13

Determine if YZ is tangent to circle x.

Mathematics
1 answer:
sveticcg [70]4 years ago
6 0

Answer:

Using the Pythagorean Theorem, XZ is suppose to have a length of 19 inches

YZ is not a tangent to circle x

Step-by-step explanation:

we know that

If YZ is tangent to circle X at point Y

then

XYZ is a right triangle

Remember that

Any right triangle must satisfy the Pythagorean Theorem

so

XZ^2=YZ^2+XY^2

substitute the given values

XZ^2=15.2^2+11.4^2

XZ^2=361

XZ=19\ in

19\ in \neq 19.6\ in

Using the Pythagorean Theorem, XZ is suppose to have a length of 19 inches

so

Triangle XYZ not satisfy the Pythagorean theorem

therefore

YZ is not a tangent to circle x

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Plz answer this fast fast I will give brainlist and 12 points​
Firlakuza [10]

Answer:

a) 115°

b) 140°

c) 75°

d) 255°

Step-by-step explanation:

a) another line parallel to AB through E will split x into two sectors.

Parallel lines intersected by a third line makes opposite internal angles of equal value. Supplemental angles add to 180°

x = (180 - 120) + (180 - 125) = 115°

b) double application of parallel lines intersected by a third line making corresponding angles identical.

c)  more of the same

d) more of the same

7 0
3 years ago
Two chicken coops are to be built adjacent to one another from 168 ft of fencing. What dimensions should be used to maximize the
Cerrena [4.2K]

Answer:

21 ft by 28 ft

Step-by-step explanation:

To maximize the area, see the attached.

Perimeter will be 4l+3w which is equal to the fencing perimeter, given as 168

4l+3w=168

Making l the subject then

4l=168-3w

l=42-¾w

Area of individual land will be lw and substituting l with l=42-¾w

Then

A=lw=(42-¾w)w=42w-¾w²

A=42w-¾w²

Getting the first derivative of the above with respect to w rhen

42-w6/4=0

w6/4=42

w=42*4/6=28

Since

l=42-¾w=42-¾(28)=21

Therefore, maximum dimensions are 21 for l and 28 for w

4 0
3 years ago
What is the answer/ how do i answer <br> 25 = x + 7
Phoenix [80]
Just subtract 7 from 25. it is 18
5 0
4 years ago
Read 2 more answers
What's the best Approximation? :3
musickatia [10]
Area of shaded region = Area of larger circle - Area of smaller circle.

We know, Area of a Circle = πr²
So, A = πr₁² - πr₂²
A = π (r₁² - r₂²)
A = π(10.2² - 5.4²)
A = 3.14 (104.04 - 29.16)
A = 3.14 (74.88)
A = 235.12

In short, Your Answer would be 235.12 cm²

Hope this helps!
3 0
3 years ago
Mrs. Neary bought a leaf-blower that was 19% off the original price. If Mrs. Neary saved $40, what is the best estimate of the o
Nastasia [14]

Answer:

47.6

Step-by-step explanation:

40+19%=47.6

6 0
3 years ago
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