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2 years ago

Does anyone like math in this world?

Mathematics

2 answers:

Bogdan [553]2 years ago

8 0

To be honest i hate math it makes me cry when i have to do it

larisa86 [58]2 years ago

4 0

Answer:

i mean math is my second favorite subject

Step-by-step explanation:

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Pleeeeaaaaase help me

Elenna [48]

Step-by-step explanation:

measure all the sides then multiply you will get the answer

4 0

2 years ago

Which property is shown? 4/5+(-4/5)=0

Aliun [14]

Answer:

Inverse Property

Step-by-step explanation:

Any number X plus the negative of itself = 0

8 0

2 years ago

One month Leila rented 3 movies and 2 video games for a total of $21 . The next month she rented 8 movies and 4 video games for

lina2011 [118]

<span>x = price movie = 4.25
y = price game = 5.50</span>

7 0

3 years ago

A rectangle has an area of 96 cm2 The length of the rectangle is 4 cm longer than the width. Work out the length and width of th

Svetach [21]

Area of a rectangle: 2(L+W)
length: 4+W

Area: 2(4+W) + 2W = 96
8+2W+2W = 96
8+4W = 96
4W = 88
W= 22cm

Calculate for length: 2L + 2(22) = 96
2L + 44 = 96
2L = 52
L = 26cm

• The length is 26cm and width is 22 cm.

3 0

3 years ago

A 30 gram sample of a substance that's used to sterilize surgical instruments has a k-value of 0.1235. Find the substances half

jok3333 [9.3K]

Answer : The substances half life in days is, 5.6 days.

Step-by-step explanation :

Half life : It is defined as the amount of time taken by a radioactive material to decay to half of its original value.

All radioactive decays follow first order kinetics.

The relation between the half-life and rate constant is:

$k=\frac{0.693}{t_{1/2}}$

where,

k = rate constant = 0.1235 per days

$t_{1/2}$ = half-life

Now put all the given values in the above formula, we get:

$0.1235\text {days}^{-1}=\frac{0.693}{t_{1/2}}$

$t_{1/2}=5.6\text{ days}$

Thus, the substances half life in days is, 5.6 days.

5 0

3 years ago