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4 years ago

87.5% in two equivalent forms

Mathematics

2 answers:

MrRissso [65]4 years ago

5 0

.875 and 857/1000 both are equilavent

storchak [24]4 years ago

3 0

.875 and 875/1000

Both are equivalent.

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Which statement is not always true for a parallelogram?

VARVARA [1.3K]

<h3>Answer: B. Diagonals are congruent.</h3>

Explanation:

If the diagonals are congruent, then we'd have a rectangle. Any rectangle is a parallelogram, but not the other way around.

If we had a non-rectangular parallelogram, with none of the angles 90 degrees, then the diagonals will not be the same length.

Choices A, C and D are true for any parallelogram (rectangle or not).

3 0

3 years ago

-13.4 - 08.9 = ?

DaniilM [7]

Answer:

It is -22.3

Step-by-step explanation:

Since it is subtraction, the answer must be smaller than -13.4. -4.5 is bigger than -13.4 so it is incorrect. The answer is -22.3

8 0

3 years ago

Read 2 more answers

Calculate the degree of the interior angle of a regular polygon with 45 sides.

soldier1979 [14.2K]

Answer:

1080°

Step-by-step explanation:

hope it's helpful

3 0

2 years ago

Whats the percent change from 100 to 140

Dahasolnce [82]

Answer:

40%

Step-by-step explanation:

8 0

3 years ago

I need help knowing how to show the work and how to get the answer and the answer it self

Morgarella [4.7K]

Find the separate areas.

We have a triangle with base 5 cm and height 5 cm, calculate the area:

$\sf A=\dfrac{1}{2}bh$

Plug in what we know:

$\sf A=\dfrac{1}{2}(5)(5)$

Multiply:

$\sf A=12.5~cm^2$

Now for the two quarter circles, we know that if we put these two together we will end up with a semi-circle with radius 5 cm. The formula for the area of a circle is:

$\sf A=\pi r^2$

A semi-circle is half of a whole circle, so the formula for the area of it must be:

$\sf A=\dfrac{1}{2}\pi r^2$

Now plug in what we know(use 3.14 to approximate for pi):

$\sf A\approx\dfrac{1}{2}(3.14)(5)^2$

Simplify the exponent:

$\sf A\approx\dfrac{1}{2}(3.14)(25)$

Multiply:

$\sf A\approx 39.25~cm^2$

Now add this to the area of the triangle to find the approximate area of the entire figure(round to the nearest tenth):

$\sf 39.25+12.5=\boxed{\sf 51.8~cm^2}$

4 0

3 years ago