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4 years ago

Math question Please Answer ASAP

Mathematics

2 answers:

Nat2105 [25]4 years ago

7 0

Hey there!

We know that since the triangle got smaller, it had to have shrunk. The answer will be a fraction, we can eliminate choice A and C.

We can use the x-axis as reference to figure out how much it was dilated.

J went from 8 to 4.

L went from 12 to 6.

K went from 4 to 2.

We know that the dilation was centered around the origin, so, we can assume that these numbers were not influenced by anything other than the dilation.

4 is half of 8, 6 is half of 12, and 2 is half of 4.

The correct answer is 1/2.

I hope this helps!

~kaikers

lys-0071 [83]4 years ago

7 0

The correct answer would be 1/2

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Show work to this problem

hoa [83]

X+y=70
x-y=30
x=30+y
30+y+y=70
2y=40
y=20
x+20=70
x=50
xy=(50)(20)=1000

7 0

3 years ago

Following triangles are similar

oksian1 [2.3K]

Answer:

40m

Step-by-step explanation:

0.2/1=8/x

cross multiply

8*1=0.2x

8=0.2x

8/0.2=x

x=40

3 0

3 years ago

What is the measure of ∠x?

Dima020 [189]

The angle is a complementary angle so both angles add up to 90 degrees

Therefore set your equation equal to 90 to find angle of x

53+x=90

Subtract 53 from both sides

X= 37 degrees

6 0

3 years ago

Slope intercept form of points 0, -4 and -1, 4

slava [35]

Answer:

$y=\frac{0}{-1} -4$

Step-by-step explanation:

first, you have to find the slope, and to do that you use this equation $\frac{y2-y1}{x2-x1}$

so, now to insert your points (0,-4), (-1,4)

(x1,y1) (x2,y2)

$\frac{4-4}{-1-0} = \frac{0}{-1}$

now that you have the slope you can find the y-intercept of the slope-intercept form by looking at your first point (0,-4) and get -4

- if you were to look at this point on a graph it would be on the y-axis therefore, -4 is the y-intercept [if you don't have a point like this one then you can look at a graph with one of your points and make a slope until you are on the y-axis :)]

therefore, the slope-intercept form is y= $\frac{0}{-1}$ -4

[ps, your slope is a zero slope :)]

8 0

3 years ago

Read 2 more answers

The Drawing of a building, shown below, has a scale of 1 inch to 30 feet.

dem82 [27]

The complete question in the attached figure

we know that
[scale]=1 in / 30 ft
scale=[measure in the drawing]/[measure in the actual]
[measure in the actual]=[measure in the drawing]/[scale]
so
[measure in the drawing]=1.25 in
scale=1/30

then
[measure in the actual]=[1.25]/[1/30]------> 1.25*30-----> 37.5 ft

the answer is
<span>the Actual height is 37.5 ft</span>

8 0

3 years ago