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3 years ago

What is the area of a quadrilateral with vertices of (2,-4) (4,-4) (2,1) and (4,1)

Mathematics

1 answer:

taurus [48]3 years ago

4 0

if you draw it out, it is a vertical rectangle

height of rectangle= 1-(-4)= 5units

length of rectangle= 4-2= 2units

area of rectangle =2×5= 10units^2

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What are the values of X and Z.

stiv31 [10]

Answer:

x = 12, z = 86

Step-by-step explanation:

Two angles are called supplementary when their measures add up to 180 degrees.

(12x -58 + 13x - 62 ) = 180°

12 x + 13x -58 - 62 = 180°

25x - 120 = 180

25x = 180 + 120

x = 300/ 25

x = 12

----------------------------------------------------------------------------------

(z° + 13x - 62) = 180

(z° + 13(12) - 62 )= 180

(z° + 156 - 62 )= 180

(z° + 94 ) = 180

z° = 180 - 94

z = 86

5 0

3 years ago

Need help dont know how to round round this number to the nearest thousand? 0.7966347977

tatyana61 [14]

Answer:

.797

Step-by-step explanation:

If your talking about a decimal number, you would say the thousandth. I know, weird, but don't blame me.

To round up, any number above 5 rounds up to the next value place, and any number below 5 rounds down to the last value place.

Ex: 1.3483838383

Since 8 is greater than 5, we could get rid of all the 83s and just round up to 1.35.

So the thousandths place in a decimal would be 0.79666357977, so we just ask if the next number after the thousandths place is greater than 5. The place number after .796 is 6, so since it is greater than 5, we would round up to .797.

Our answer is .797.

Hope this helps!

3 0

3 years ago

Read 2 more answers

A square has side length of 9 in. If the area is doubled, what happens to the side length?

Alika [10]

Answer:

The side length is multiplied by $\sqrt{2}$

Step-by-step explanation:

we know that

The area of the original square is equal to

$A=9^{2}=81\ in^{2}$

If the area is doubled

then

The area of the larger square is

$A1=(2)81=162\ in^{2}$

Remember that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the larger square

y ---> the area of the original square

$z^{2}=\frac{x}{y}$

we have

$x=162\ in\^{2}$

$y=81\ in\^{2}$

$z^{2}=\frac{162}{81}$

$z^{2}=2$

$z=\sqrt{2}$ ------> scale factor

therefore

The side length is multiplied by $\sqrt{2}$

7 0

3 years ago

Match the decimal to its corresponding fraction. *

Charra [1.4K]

Answer:

1/3 = 0.333333

16/33 = 0.48484848

2/11 = 0.181818

1/12 = 0.0833333

127/999 = 0.127127127

Step-by-step explanation:

divde each fraction

5 0

3 years ago

Read 2 more answers

5x (x - 4) = 0 Solve it in standard form

murzikaleks [220]

Answer:

x=0 or x=4

Step-by-step explanation:

5x(x−4)=0

4 0

3 years ago