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2 years ago

Whats the answer to 6+2h=8

2 answers:

6 0

Move the 6 to the other side which makes it to subtract meaning 2h=8-6
Then the ans will be 2h=2
Next move the 2 frm H to the other side which makes it to divide since near teh H it was in multiplication:
H=2/2
H=1 (answer)

ddd [48]2 years ago

4 0

The answer is h=1! hope this helped.

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Convert 5/4 into a decimal

dimaraw [331]

Answer:

Step-by-step explanation:

The answer is 1.25

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2 years ago

The base of a triangle is 75 cm and its height is 12<br> 12 cm. Find its area.

lisabon 2012 [21]

Answer:

Here is your answer

Step-by-step explanation:

Solution,

here,

Base is 75 cm

Height is 12 cm

Now,

Area of triangle=1/2×b×h

=1/2×75×12

= 900/2

=450. ans

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2 years ago

Question 3 (1 point) Co-60 has a half life of 5.3 years. If a pellet that has been in storage for 26.5 years contains 14.5g of C

Zarrin [17]

Answer:

464 grams.

Step-by-step explanation:

Amount of substance:

The amount of substance after t years is given by an equation in the following format:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial amount and r is the decay rate, as a decimal.

Co-60 has a half life of 5.3 years.

This means that:

$A(5.3) = 0.5A(0)$

We use this to find r. So

$A(t) = A(0)(1-r)^t$

$0.5A(0) = A(0)(1-r)^{5.3}$

$(1-r)^{5.3} = 0.5$

$\sqrt[5.3]{(1-r)^{5.3}} = \sqrt[5.3]{0.5}$

$1 - r = 0.5^{\frac{1}{5.3}}$

$1 - r = 0.8774$

$A(t) = A(0)(0.8774)^{t}$

If a pellet that has been in storage for 26.5 years contains 14.5g of Co-60, how much of this radioisotope was present when the pellet was put in storage?

We have that $A(26.5) = 14.5$ , and use this to find A(0). So