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irina1246 [14]
2 years ago
8

Which of the following are perfect squares? 2, 4, 6, 16, 20,25, x², x³, x¹⁵, x²⁰, x²⁵

Mathematics
2 answers:
coldgirl [10]2 years ago
4 0

Answer:

4, 16, 25, x^{2}, x^{20}\\.

Step-by-step explanation:

Gemiola [76]2 years ago
4 0

Answer:

16, 4, 25, x², x ²⁰

. . . . . . . .

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Please answer the following Question (35 Points)
True [87]

Answer:

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14

Step-by-step explanation:

7 0
2 years ago
Which statement best explains why the dilation of a triangle produces a similar triangle
Allushta [10]

Dilation always preserves angle measures, the given statement best explains why the dilation of a triangle produces a similar triangle

<u>Step-by-step explanation:</u>

The dilation (similarity transformations) varies the size of the figure. This requires a midpoint and a scale factor k. The k value finds whether it is an increase or decrease.

  • If | k |> 1, the dilation is an extension.
  • If | k | <1 it is reduction.

The absolute value of k determines the size of the new image relative to the size of the original image. If the k is positive, the new and original image is on the same side of the center.

If k is negative, they are on both sides of the center. Its own image is always at the center of development. This support angle size, point equality, and collinearity. Does not maintain distance. In simple, dilation always give similar figures.

6 0
2 years ago
-6x – 4y = -14<br> 4x – 12y = -20<br><br> a. (1, 2)<br> b. (-2, 1)<br> c. (-2,4)<br> d. (-2,-4)
dangina [55]
It’s probably A. (1,2) hope this helps..
5 0
2 years ago
Read 2 more answers
9.4 The heights of a random sample of 50 college stu- dents showed a mean of 174.5 centimeters and a stan- dard deviation of 6.9
gladu [14]

Answer:  a) (176.76,172.24), b) 0.976.

Step-by-step explanation:

Since we have given that

Mean height  = 174.5 cm

Standard deviation = 6.9 cm

n = 50

we need to find the 98% confidence interval.

So, z = 2.326

(a) Construct a 98% confidence interval for the mean height of all college students.

x\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=(174.5\pm 2.326\times \dfrac{6.9}{\sqrt{50}})\\\\=(174.5+2.26,174.5-2.26)\\\\=(176.76,172.24)

(b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 174.5 centime- ters?

Error would be

\dfrac{\sigma}{\sqrt{n}}\\\\=\dfrac{6.9}{\sqrt{50}}\\\\=0.976

Hence, a) (176.76,172.24), b) 0.976.

8 0
2 years ago
HELP^^ LOOK AT THE PICTURE. this is algebra in &amp; out tables ?
s2008m [1.1K]

Answer:

a= 1 , b = 1/16  , c = 1/256 , d= 3/2 , e=4/9  , f= 16/81

Step-by-step explanation:

The first table is given as;

x         4⁻ˣ

-1        4

0        1

2       1/16

4      1/256

a= 1 , b = 1/16  , c = 1/256

The second table is given as;

x             {2/3}^x

-1             3/2

0               1

2              4/9

4              16/81

d= 3/2 , e=4/9  , f= 16/81

5 0
3 years ago
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