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3 years ago

Which of the following shows this trapezoid rotated 90°

Mathematics

2 answers:

Alenkasestr [34]3 years ago

8 0

Answer:

its the second option...

Step-by-step explanation:

vlada-n [284]3 years ago

3 0

Answer:

Graph (2) is the answer.

Step-by-step explanation:

Rule to rotate a point (x,y) 90° clockwise about the origin

(x,y) ⇒ (y,-x)

Then translated 3 units up

(y,-x) ⇒ (y,-x + 3)

So rule is (x,y) ⇒ (y, -x+3)

Now we take all the points of the trapezoid

(0, -1) ⇒ (-1, 3)

(1.5, -2.5) ⇒ (-2.5, 1.5)

(1.5, -3.5) ⇒ (-3.5, 1.5)

(0, -3.5) ⇒ (-3.5, 3)

These coordinates match with the points in figure (2)

Therefore, Graph (2) is the answer.

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Find three points that solve , then plot on the graph. -2x-3y=-7

Fittoniya [83]

Hello,
The points are:
(2,1); (1,5/3); (5,-1)

Bye:-)

4 0

4 years ago

The teacher asked 4 students to measure 4 different objects. The table shown represents their measurements. Which student had th

Maru [420]

Student 4 has the largest percent error.

Step-by-step explanation:

The percent error of a measurement is given by

$p=\frac{|x-x_{true}|}{x_{true}}\cdot 100$

where

x is the value of the measurement

$x_{true}$ is the actual value

For student 1:

$x=49\\x_{true}=50$

Percent error:

$p=\frac{|49-50|}{50}\cdot 100=0.02\cdot 100=2\%$

For student 2:

$x=25.5\\x_{true}=25$

Percent error:

$p=\frac{|25.5-25|}{25.5}\cdot 100=0.0196\cdot 100 = 1.96\%$

For student 3:

$x=7.5\\x_{true}=8$

Percent error:

$p=\frac{|7.5-8|}{8}\cdot 100=0.0625\cdot 100 = 6.25\%$

For student 4:

$x=2.1\\x_{true}=1.6$

Percent error:

$p=\frac{|2.1-1.6|}{1.6}\cdot 100=0.3125\cdot 100 = 31.25\%$

So, student 4 has the largest percent error.

Learn more about errors:

brainly.com/question/2764830

#LearnwithBrainly

4 0

4 years ago

What are the angle measures of the triangle?

77julia77 [94]

I think the answer is b I havent done problems like that in like 2 years i hope i helped

3 0

3 years ago

Can someone please help me

Evgesh-ka [11]

Answer:

UW ≈ 6.55 ≈ 7

Step-by-step explanation:

cos (35) = adjacent/hypotenuse

cos(35) = UW/VW

cos(35) = UW/8

8*cos(35) = UW

UW ≈ 6.55

Hope this helped! <3

7 0

3 years ago

Area between two shapes. Geometry IXL pls help !

uysha [10]

Answer:

The answer to your question is A = 441.50 km²

Step-by-step explanation:

Data

Big triangle Small triangle

base = 33 km base = 19 km

height = 40 km height = 23 km

Process

1.- Calculate the area of the big triangle

Area = base x height / 2

Substitution

Area = 33 x 40 / 2

= 1320 / 2

= 660 km²

2.- Calculate the area of the small triangle

Area = 19 x 23 / 2

= 437 / 2

= 218.5 km²

3.- Subtract the small area to the big area

Share area = 660 - 218.5

= 441.50 km²

4 0

3 years ago

Read 2 more answers