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Tom [10]
3 years ago
8

The coordinates of the vertices of △DEF are D(2,−1) , E(7,−1) , and F(2,−3) . The coordinates of the vertices of △D′E′F′ are D′(

0,−1) , E′(−5,−1) , and F′(0,−3) . What is the sequence of transformations that maps △DEF to △D′E′F′ ? A sequence of transformations that maps △DEF to △D′E′F′ is a ___________ followed by a ___________
A) Translation 2 units right
B) Rotation of 180 degrees about the origin
C) Reflection across the y-axis
D) Translation 2 units up

Choose 2 correct answers.
Mathematics
1 answer:
inn [45]3 years ago
3 0
One is a translation 2 units right but i don't know about the other one
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Somebody please help I hate geometry
borishaifa [10]

Answer:

70

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20

Step-by-step explanation:

mark me as brilliant

7 0
3 years ago
Which equation of the least squares regression line most closely matches the data set?
Rudiy27

Answer: y = 3.5 x+ 43.8

Step-by-step explanation:

Here x represents the number of years after 1990

Thus, we get the table that is used to find the equation will be,

x             0                  2                4               6                8

y             45                51               57            61               75

Let the equation that shows the above data,

y = b + a x ---------(1)

\text{Where, }a=\frac{\sum y \sum x^2-\sum x \sum xy}{n(\sum x^2)-(\sum x)^2}

\text{And, }b = \frac{\sum xy - \sum x\sum y}{n\sum x^2 - (\sum x)^2}

By the above table,

\sum x = 20

\sum xy = 1296

\sum x^2 = 120

\sum y = 289

By substituting these values in the above value of a and b,

We get b = 43.8 and a = 3.5

Substitute this value in equation (1)

we get, the equation that shows the given data is,

y = 3.5 x + 43.8

⇒ Option (3) is correct.

4 0
3 years ago
Read 2 more answers
. 4/18 times 2/92. 1/9 times 3/63. 12/14 times 1/84.1/7 times 5/65. 17/20 times 1/61. 4 1/4 times 3 1/22. 3 5/6 times 4 1/23. 2
AlladinOne [14]

Answer:

Step-by-step explanation:

4/18×2/92

=1/9×1/23

=1/207

1/9×3/63

=1/3×1/23

=1/69

12/14×1/84

=1/14×1/7

=1/98

1/7×5/65

=1/7×1/13

=1/91

17/20×1/61

=17/1220

4 1/4 ×3 1/22

=17/4×67/22

=1,139/88

=12 83/88

3 5/6×4 1/23

=23/6×93/23

=93/6

=15 3/6

=15 1/2

2 1/2×4 7/84

=5/2×343/84

=1715/168

=10 35/168

I have answered more than 2 from each set

6 0
3 years ago
Terry Bergolt's bank granted him a single-payment loan of $4,400 at an interest rate of 6% exact interest. The term of the loan
Mashutka [201]
The correct answer is (b)
6 0
3 years ago
Read 2 more answers
You are paid 1.5 times your normal hourly rate for each hour you work over 30 hours in a week. You work 34 hours this week and e
natulia [17]

Answer: $15.94

Step-by-step explanation:

Let r be your rate you get paid per hour normally. Let's set up this equation.

(30 * r) + 4(1.5 * r) = 573.83

30r + 6r = 573.83

36r = 573.83

r = 15.94 (rounded)

You get paid $15.94 hourly.

8 0
1 year ago
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