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3 years ago

25/24 as a decimal rounded to nearest hundredth

Mathematics

1 answer:

Sonbull [250]3 years ago

6 0

Divide 25 by 24:

25 / 24 = 1.0416

The hundredth place is the second decimal place, because the third decimal place is less than 5, the hundredths place stays the same:

Answer: 1.04

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For the figures below, assume they are made of semicircles, quarter circles and squares. For each shape, find the area and perim

laiz [17]

Answer:

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

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

Step-by-step explanation:

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

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

The hypotenuse of right triangle is equal to (applying the Pythagorean Theorem)

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

simplify

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

Find the perimeter

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

simplify

Factor 6

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

8 0

3 years ago

PLEASE HELP! NO LINKS! TEN POINTS!<br><br> please explain it if you can!

Nata [24]

I think the answer would be 112cm.

To find the area of the triangle you need to do basexheight divided by 2.
8x10 divided by 2 = 40

To find the area of the rectangle
12x6=72

40+72= 112cm

I’m not sure if it’s right but I hope this helps.

7 0

3 years ago

Read 2 more answers

Wha is the product of those numbers

Anni [7]

4/5*1/2= 4/10= 2/5, that is the answer of this equation

3 0

3 years ago

You throw two darts at a dartboard.

madreJ [45]

Answer:

B. The probability that the second dart hits the center given that the

first dart hits the center

Step-by-step explanation:

P(BA) is also called the "Conditional Probability" of B given A.

3 0

3 years ago

(2y+6) (y-6) =0 solve each equation

Paha777 [63]

Answer:

3y=0

Step-by-step explanation:

(2y+6) (y-6)=0

first you are going to remove the bracket

so: 2y+6 y-6 =0

then you are going to arrange them

so: 2y+y =6-6

then you're going to do your addition

so: 2y + y = 3y

while 6-6=0

so therefore the answer who be 3y=0

4 0

3 years ago