All categories

3 years ago

What is 15 mL to the nearest 0.1 mL?

1 answer:

4 0

The answer is 20ml. You have 15 and round it up because if your number in the ones digit is 5 or higher you round up. In this case you would round 15ml up to 20ml.

You might be interested in

Gino brings home one book from each of his 5 school subjects and places them side by side on a

const2013 [10]

Answer:

about 50

Step-by-step explanation:

that's all I can think of

4 0

3 years ago

The sum of the diagonals of a rhombus is 5√2.

Alex

Greetings!
Let ABCD be a rhombus
AC + BD = 5√2 cm

Area of ABCD = Ar△ABD + Ar △BCD
$= \frac{1}{2} \times BD \times AO + \frac{1}{2} \times BD \times OC$
$= \frac{1}{2} BD (AO + OC)$
$\frac{1}{2} BD \times AC$

$So, \frac{ BD \times AC}{2} = 4 \: cm {}^{2}$
$BD \times AC = 8$
$Now, AC + \: BD = 5 \sqrt{2}$

Squaring both sides, we get
$AC {}^{2} + BD {}^{2} + 2 AC.BD =50$
$AC {}^{2} + BD {}^{2} + 2 \times 8 = 50$
$AC {}^{2} + BD {}^{2} = 50 - 16$
$AC {}^{2} + BD {}^{2} = 34$

In △AOB, we have
$OA {}^{2} + OB {}^{2} =AB {}^{2}$
$( \frac{ AC }{2} ) {}^{2} + ( \frac{ BD}{2} ) {}^{2} = AB {}^{2}$
$\frac{ AC {}^{2} } {4} + \frac{ BD {}^{2} }{4} = AB {}^{2}$
$AC {}^{2} + BD {}^{2} = 4 AB {}^{2}$
$34 = 4 AB {}^{2}$

Square rooting both sides
$\sqrt{34} = 2 AB$
$Perimeter = 4 \: AB \\ = 2 \times 2 \: AB \\ = 2 \: \times \sqrt{34 } \\ = 2 \sqrt{34 \: } units$ .

Hope it helps!

7 0

3 years ago

When Alexis adopted her puppy, the puppy weighted 12 pounds. One year later, the puppy weighted 60 pounds. By what percent did t

iVinArrow [24]

Answer:

400%

Step-by-step explanation:

Original wieght = 12

New weight = 60

Change = 60- 12= 48

Change percent = change / original x 100 = 48 / 12 x 100 = 400 %

I hope its right!!!! :)

7 0

2 years ago

Wonder if someone can help me with my math work please

stellarik [79]

Answer:

The slope is negative. The relationship is proportional

Step-by-step explanation:

6 0

2 years ago

Mean average of this question plz.

stira [4]

for this answer
I got 32

7 0

2 years ago