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3 years ago

What is fraction of 7/20

Mathematics

2 answers:

Charra [1.4K]3 years ago

7 0

What do you mean? the decimal is .35 and u can't simplify it anymore

olga nikolaevna [1]3 years ago

4 0

$\frac{7}{20}$ is already in simplest form, so there's no need to reduce it any further.

Think about it: The numerator (7) is smaller than the denominator (20)

This is known as an improper fraction. An improper fraction is a type of fraction in which the numerator is greater than the denominator (ex. 7/18)

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(Please answer before 5:15 P.M tonight)

taurus [48]

The scale factor of dilation from ABC to $A^{1} B^{1} C^{1}$ is 0.333.

Step-by-step explanation:

Step 1:

First, we plot the coordinates of both triangles.

The coordinates of the triangle $A^{1} B^{1} C^{1}$ are as follows;

$A^{1}$ = (2, 3), $B^{1}$ = (2, 1), and $C^{1}$ = (3, 1).

The coordinates of triangle ABC are;

A = (4, 9), B = (4, 3), and C = (7, 3).

Step 2;

Next, we need to find the distances between at least two coordinates for both triangles.

The distances between vertical lines are found by calculating the difference in y values while for horizontal lines, the distances are found by calculating the difference between the x values.

The distance of $A^{1} B^{1} = 3-1=2$ , the distance of $B^{1} C^{1} = 3-2=1$ .

The distance of AB $=9-3=6,$ the distance of BC $= 7-4=3.$

Step 3;

To calculate the scale factor, we divide the measurement after scaling by the same measurement before scaling.

In this case, it is the length of the AB.

So The scale factor for AB = $\frac{2}{6} = \frac{1}{3} = 0.333.$

The scale factor for BC = $\frac{1}{3} = 0.333.$

7 0

3 years ago

Please try this, it's a basic proof that I don't know how to do. Thanks!

avanturin [10]

A cube, is made off 6 squarial faces, so all faces on that cube, are squares, the front, back, left, right, top and bottom.

a square has all equal sides, and also all right angles, so all angles in a square are 90°. Let's say the sides are "x" long.

now, if we run a plane on that cube diagonally, check the picture below, the diagonal side at the bottom, by usin the 45-45-90 rule as you see it there, will be x√2.

let's keep in mind that, "x" is opposite side of that angle θ, and then x√2 will be the adjacent side of it.

and we can use those two to get the tangent and then the inverse tangent to get the value, as you see it in the picture.

if you need the angle in radians, run the inverse tangent again, just make sure your calculator is in radians mode.

7 0

3 years ago

What is cos 30º? O A. 13 B. 1 Oc. O D. 3 2 E. O F. 1 /

babunello [35]

Answer: I do not understand the options you gave but but cos30º is equal to $\sqrt{3}$ /2 which is 0.86602540378.

7 0

3 years ago

6. Write an equation of a line parallel to y = 3x + 9 and goes through the point (-1,5).

lisabon 2012 [21]

Answer: The equation parallel to the line is y=3x+8

Step-by-step explanation: Parallel lines have the same gradients, wr have a gradient for the above line which 3. The standard formula for the linear equation is y=mx+c

We have to calculate c since we have x and y.

y=mx+c

5= 3(-1)+c

c=8

The equation become y=3x+8

4 0

3 years ago

17. The perimeter of rectangle RPQT is 134dm.

Rina8888 [55]

Answer:

$\sf 1092 \: dm^2$

Refer to the attachment for explication of steps. :)

6 0

2 years ago