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blsea [12.9K]
3 years ago
15

Plz help ASAP 15 points 4. XY is tangent to circle Zat point Y. Xw is tangent to circle Zat point W.

Mathematics
2 answers:
Sladkaya [172]3 years ago
8 0

Answer: 4.8 units

Step-by-step explanation:

mars1129 [50]3 years ago
4 0

9514 1404 393

Answer:

  A.  4.8 units

Step-by-step explanation:

Segment ZX can divide the figure into two right triangles. Then angle XZY is 136°/2 = 68°. The tangent relation tells you ...

  Tan = Opposite/Adjacent

  tan(68°) = XY/r

  r = 12/tan(68°) ≈ 4.848 ≈ 4.8

The radius of the circle is about 4.8 units.

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A rectangular garden is enclosed by 94 feet of fencing around its perimeter. The garden is 15 feet wide. How long is the garden?
mel-nik [20]

Answer:

D

Work:

94-15=79ft

Therefore, the answer would be 79ft.

Hope this helps,

Trey

8 0
3 years ago
Read 2 more answers
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PolarNik [594]
Answer:
The second choice is the correct one

Explanation:
(2x+3)^2 + 8(2x+3) + 11 = 0
To use the u substitution, we will assume that:
2x + 3 = u

Substitute with this in the given expression, we will get:
u^2 + 8u + 11 = 0 

The general form of the second degree equation is:
ax^2 + bx + c = 0

Comparing the expression we reached with the general one, we will find that:
a = 1
b = 8
c = 11

The roots can be found using the rule found in the attached picture.
This means that, for the given expression:
u = -4 ± √5 

Now, we have:
u = 2x+3
This means that:
at u = -4 + √5 
2x + 3 = -4 + √5 
2x = -7 + √5
x = (-7 + √5) / 2

at u = -4 - √5 
2x + 3 = -4 - √5 
2x = -7 - √5
x = (-7 - √5) / 2

This means that, for the given expression:
x = (-7 ± √5 ) / 2

Hope this helps :)

7 0
3 years ago
Read 2 more answers
I have no idea what this means
Mnenie [13.5K]

Answer: square root is a number that can be multiplied by itself to get that number in that radical aka checked half box.

Step-by-step explanation: square root of 18 is

Approx: ~4.2

Since that approx multiplied by itself is 19. Search up place values. Numbers after the decimals start from, tenths place, hundredths, thousands place and so on. This one asked for the tenths place. 0.2 the 2 is in the tenths place

6 0
3 years ago
Pleaseeee help picture attached will mark as brainliest plzzzzz PLZZZZ IM BEGGING YOU
KIM [24]
Well it seems like it's going in a pattern of 3
3, 6, 9, and 12
12 + 3 = 15
I believe 15 is your answer
7 0
3 years ago
Russell has a collection of 1,500 pennies. Of these pennies, 20% are dated before 1980, 35% are dated from 1980 to 2000, and the
Mamont248 [21]

100%-(20%+35%)=100%-55%=45%

45% of pennies are dated after 2000

45% of 1500=45•1500/100=45•15=675 pennies are dated after 2000

3 0
3 years ago
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