All categories

3 years ago

Which inequality is NOT true?

Mathematics

1 answer:

Nuetrik [128]3 years ago

4 0

Answer:

Step-by-step explanation:

it's b and mark me brainlist plaese

You might be interested in

Helpp pls????????????

Jet001 [13]

Answer:

It just means that it is not equal to each other so the equation is false.

Step-by-step explanation:

The equal sign with a line through it means that they aren't the same. -12 is a different number from 12 so they can't end up being the same in the end of the equation.

Hope this helps!

5 0

3 years ago

The figures below are made out of circles, semicircles, quarter circles, and a square. Find the area and the perimeter of each f

WITCHER [35]

Answer:

Part 1) $A=36(\pi-2)\ cm^2$

Part 2) $P=6(\pi+2\sqrt{2})\ cm$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) Find the area

we know that

The area of the shape is equal to the area of a quarter of circle minus the area of an isosceles right triangle

$A=\frac{1}{4}\pi r^{2}-\frac{1}{2}(b)(h)$

we have that the base and the height of triangle is equal to the radius of the circle

$r=12\ cm\\b=12\ cm\\h=12\ cm$

substitute

$A=\frac{1}{4}\pi (12)^{2}-\frac{1}{2}(12)(12)\\A=(36\pi-72)\ cm^2$

simplify

Factor 36

$A=36(\pi-2)\ cm^2$

Part 2) Find the perimeter

The perimeter of the figure is equal to the circumference of a quarter of circle plus the hypotenuse of the right triangle

The circumference of a quarter of circle is equal to

$C=\frac{1}{4}(2\pi r)=\frac{1}{2}\pi r$

substitute the given values

$C=\frac{1}{2}\pi (12)\\C=6\pi\ cm$

Applying the Pythagorean Theorem

The hypotenuse of right triangle is equal to

$AC=\sqrt{12^2+12^2}\\AC=\sqrt{288}\ cm$

simplify

$AC=12\sqrt{2}\ cm$

Find the perimeter

$P=(6\pi+12\sqrt{2})\ cm$

simplify

Factor 6

$P=6(\pi+2\sqrt{2})\ cm$

4 0

3 years ago

Which of the following is an informal proof of the given conjecture? Conjecture: All squares are similar

tester [92]

The 3rd one because of the laws and newton’s ways

7 0

3 years ago

If m∠D + m∠E = 180°, then ∠D and ∠E are classified as what kind of angles?

Archy [21]

The other person is literally wrong. The answer is D. Supplementary because two angles that add up to 180 are supplementary angles.

3 0

2 years ago

A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as ed

zubka84 [21]

55832 + 11.25 x = 25.25 x

55832 = 14 x

x = 3988 books

4 0

3 years ago