On a coordinate plane, triangle A has points (0, 0), (negative 2, 3), (2, 3). Triangle A prime has points (0, 0), (negative 3, negative 5), (3, negative 5).
The pre–image, A, was dilated about the origin. It was then transformed in another way to get A'.

What was the transformation after the dilation?
rotation 90° counterclockwise
translation down 9 units
reflection over the x-axis
reflection over the y-axis

Answer:

1.) The product of 12 and 3/4 is less than 12. This is because you are multiplying 12 by a number less than 1.

2.) The product of 5 and 1/2  is less than 5, this is because you are multiplying 5 by a number less than one.

Step-by-step explanation:

If multiplied by a number less than one then it will be smaller than original

If multiplied by one will be the same as original

If multiplied by a number greater than one it will be greater than original

Step-by-step explanation:

15/4 ÷ 5/8

15/4×8/5

3×2

=6

Answer:

6

Step-by-step explanation:

Answer:

4x+28

Step-by-step explanation:

Answer:

21 quizzes

Step-by-step explanation:

3 quizzes per week 9÷3=3

7 weeks = 3×7 so 21 quizzes

Answer:

21 quizzes

Step-by-step explanation:

What we know:

- Hayley takes 9 quizzes in 3 weeks

What we want to find:

- The number of quizzes Hayley would've taken after 7 weeks

We need to first find the number of quizzes Hayley would take in 1 week and then multiply that number by 7. To find the number of quizzes per week, divide 9 by 3:

9÷3=3

Therefore, every week, Hayley takes 3 quizzes.

Now, we multiply 3 by 7:

3×7=21

Therefore, after attending 7 weeks of school, Hayley would've taken 21 quizzes in total.

I hope this helps!

Answer: width = 1.1 meters

Step-by-step explanation:

The length of Rectangle garage =6.6m

Width = 6 times shorter than length

Therefore width = 6.6/ 6

= 1.1 m

Answer:

1.1

Step-by-step explanation:

Answer:

About 8

Step-by-step explanation:

it probably will be 8 ......

Given:

In triangle ABC, AB=8.2 cm, C=13.5 cm and angle A= 81 degrees.

To find:

The length of AC.

Solution:

According to the Law of Sines:

[tex]\dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}[/tex]

Using Law of Sines, we get

[tex]\dfrac{\sin A}{a}=\dfrac{\sin C}{c}[/tex]

[tex]\dfrac{\sin (81^\circ)}{13.50}=\dfrac{\sin C}{8.2}[/tex]

[tex]\dfrac{\sin (81^\circ)\times 8.2}{13.50}=\sin C[/tex]

[tex]\sin^{-1}\dfrac{\sin (81^\circ)\times 8.2}{13.50}= C[/tex]

[tex]C\approx 36.86^\circ[/tex]

Using angle sum property, we get

[tex]\angle A+\angle B+\angle C=180^\circ[/tex]

[tex]81^\circ+\angle B+36.86^\circ=180^\circ[/tex]

[tex] \angle B =180^\circ-81^\circ-36.86^\circ [/tex]

[tex] \angle B =62.14^\circ [/tex]

Now,

[tex]\dfrac{\sin A}{a}=\dfrac{\sin B}{b}[/tex]

[tex]\dfrac{\sin (81^\circ)}{13.50}=\dfrac{\sin (62.14^\circ)}{b}[/tex]

[tex]b=\dfrac{13.50\times \sin (62.14^\circ)}{\sin (81^\circ)}[/tex]

[tex]b\approx 12.08[/tex]

Therefore, the length of AC is 12.08 cm.

Answer:

The formula for the point biserial correlation coefficient is:

point biserial correlation formula

M1 = mean (for the entire test) of the group that received the positive binary variable (i.e. the “1”).

M0 = mean (for the entire test) of the group that received the negative binary variable (i.e. the “0”).

Sn = standard deviation for the entire test.

p = Proportion of cases in the “0” group.

q = Proportion of cases in the “1” group.

Most people won’t work this formula by hand as most statistical software packages can calculate the coefficient for you.

Answer:

The answer will be A and D and E

Step-by-step explanation:

9514 1404 393

Answer:

  9.9

Step-by-step explanation:

The applicable geometric mean rule tells you ...

  y = √(9(9+2)) = √99

  y ≈ 9.9

__

Additional comment

In this geometry, the right triangles are similar. Ratios of corresponding sides are equal.

  hypotenuse/long side = y/9 = (9+2)/y

  y^2 = (9)(11)

  y = √99 . . . . as above

The long leg is the geometric mean of the (adjacent) long segment and the full hypotenuse.

Answer:

x = 10

y = [tex]10\sqrt{2}[/tex]

Step-by-step explanation:

Let me know if you want an explanation.

Answer:

it would be 35% and as a decimal its 0.35

Step-by-step explanation:

hope that helps

Answer:

35%

Step-by-step explanation:

7/20 = 35/100 (you multiply by 5)

35/100 = 35%

Answer:

11) A=84.7m²

12) A=75.2km²

13) A=28.05ft²

14) A=48yd²

Step-by-step Explanation:

11) A = 1/2(bh)

A = 1/2(14×12.1)

A = 1/2(169.4)

A = 84.7m²

12) A = 1/2(bh)

A = 1/2(16×9.4)

A = 1/2(150.4)

A = 75.2km²

13) A = 1/2(bh)

A = 1/2(5.1×11)

A = 1/2(56.1)

A= 28.05ft²

14) A = 1/2(bh)

A = 1/2(16x6)

A = 1/2(96)

A = 48yd²

Answer:

11) A=84.7m²

12) A=75.2km²

13) A=28.05ft²

14) A=48yd²

Step-by-step explanation:

Answer:

135

Step-by-step explanation: 9x15=135

Answer:

1238

Step-by-step explanation:

hindi ko alam ask mo nalang sa mama mo hahaha baka sakaling alam niya yung sahot na tinatanong mo hahaha

Answer:

First box: 3, second box: 50, third box: 2

Step-by-step explanation:

5 x 3/5 = 3 (the whole number 5 and the denominator of 5 cancel each other out)

5 x 10 = 50

5 x 2/5 = 2 (the whole number 5 and the denominator 5 cancel each other out)

Answer:

ok

Step-by-step explanation:

7mean

12median

12mode

14range

15 range

no mode

13.5median

13mean

range 12

18 mean

17 median

no mode

no mode

19 mean

18 median

21 range

Answer: C (324)

Step-by-step explanation:

He is making $54 a day working 6 hours a day. 54 x 6 = 324 meaning in 6 days he would make $324.

Answer:

C. 324 thats the answer my cousin solved this

Answer:

115.2 total marks.

Step-by-step explanation:

If 72 is only 60% of the total marks, then to find the total number of marks we will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

The total number of marks in the test ​ is 115.2 total marks.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We have been given that paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks.

When 72 is only 60% of the total marks, then to find the total number of marks.

We will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

Then, 72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

Hence, The total number of marks in the test ​ is 115.2 total marks.

Learn more about the unitary method;

https://brainly.com/question/23423168

#SPJ2

Answer:

So basically you just count how many squares you see. I see 21 squares so your answer would be 21 cubic units please mark me brainliest and have a wonderful day

Step-by-step explanation:

Answer: 18 cubic units

Step-by-step explanation:

You can count the number of units on each side, one for height, which is 3 units, one for width, also 3, and one for length, 2 units. Volume is height*length*width, so 3*3*2 is 18.

Answer:

X=3 Y=10

Step-by-step explanation:

Answer:

x=6 and y=-4

Step-by-step explanation:

4x+y=20

x-y=10

5x=30

x=30/5

x=6

4x+y=20

4(6)+y=20

24+y=20

y=20-24

y=-4

Answer:

B. and also i take it ur dating neko now XD

Step-by-step explanation:

Answer:

oh snap

Step-by-step explanation:

at least it isn't due in 10 mins right? that happened to me.... luckily I saved 1st draft

Answer: I feel bad to you

Step-by-step explanation:lol