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Eva8 [605]
3 years ago
14

Can you please help me in this question.I need the ASAP

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0
If an ordered pair is reflected on x-axis, it will result in opposite number of y. If the original y positive, the reflected point of y will be negative.

we can write it as
(x,y) -> reflected to x axis -> (x, -y)

Solution:
(x,-y) = (4.75, -2.25)
(x,y) = (4.75, 2.25)

The original point was (4.75, 2.25)

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Based only on the information given in the diagram, it is guaranteed that JKL ~ WXY.
Alika [10]

Answer:

Option A True

Step-by-step explanation:

we know that

The sum of the internal angles of  the triangle is equal to 180\°

<u>In the triangle JKL</u>

m∠L=180\°-90\°-27\°=63\°

so

The measurements of the angles of triangle JKL are 27\°-90\°-63\°

<u>In the triangle WXY</u>

m∠W=180\°-90\°-63\°=27\°

so

The measurements of the angles of triangle WXY are 27\°-90\°-63\°

therefore

Triangle JKL and triangle WXY are similar by AAA ( The AAA postulate states that if you can prove that all three angles of two triangles are congruent, you can prove the two triangles are similar)

6 0
3 years ago
Read 2 more answers
Tatiana reads 40 pages of her book every night for X number of nights write an expression that represents the number of pages sh
storchak [24]
You are doing weekly math homework 6th weekend 19
4 0
3 years ago
Historically, the proportion of students entering a university who finished in 4 years or less was 63%. To test whether this pro
Neporo4naja [7]

Answer:

z(c)  = - 1,64

We reject the null hypothesis

Step-by-step explanation:

We need to solve a proportion test ( one tail-test ) left test

Normal distribution

p₀ = 63 %

proportion size  p = 51 %

sample size  n = 114

At 5% level of significance   α = 0,05, and with this value we find in z- table z score of z(c) = 1,64  ( critical value )

Test of proportion:

H₀     Null Hypothesis                        p = p₀

Hₐ    Alternate Hypothesis                p < p₀

We now compute z(s) as:

z(s) =  ( p - p₀ ) / √ p₀q₀/n

z(s) =( 0,51 - 0,63) / √0,63*0,37/114

z(s) =  - 0,12 / 0,045

z(s) = - 2,66

We compare z(s) and z(c)

z(s) < z(c)      - 2,66 < -1,64

Therefore as z(s) < z(c)  z(s) is in the rejection zone we reject the null hypothesis

5 0
3 years ago
The temperature outside is 0 degrees F. If the temperature drops 14 degrees, what was the overnight low temperature?
Tcecarenko [31]
It would be -14 degrees 
5 0
3 years ago
Read 2 more answers
What type of slopes do parallel lines have? And, What type of slopes do perpendicular lines have?
Goshia [24]

parallel lines have the same slope

perpendicular lines have the negative reciprocal

ie 3--------> -1/3

7 0
3 years ago
Read 2 more answers
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