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jeka57 [31]
3 years ago
10

WILL GIVE BRAINLIEST FOR THE RIGHT ANSWER!!

Mathematics
1 answer:
vredina [299]3 years ago
7 0

Answer:

19 gram

Step-by-step explanation:

Formula of mass left after ionising: \frac{M}{2^{n} }  where M is original mass and n is half lives.

Using the equation:

\frac{150}{2^{3} } → 18.75

Therefore, 18.75 g left after ionising.

∵ If rounded to nearest gram then 19 gram.

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ILL MARK BRAINLIEST
mezya [45]

Answer:

22,368

Step-by-step explanation:

1864 x 12 = 22,368

8 0
3 years ago
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What is the equation of a line that passes through the points (0,5) and (4,8)? Write your answer in slope-intercept form.
7nadin3 [17]

Answer:

y=3/4x+5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(8-5)/(4-0)

m=3/4

y-y1=m(x-x1)

y-5=3/4(x-0)

y-5=3/4(x)

y-5=3/4x

y=3/4x+5

7 0
4 years ago
an architect build a road 8 1/4 miles long. the next Road he built was 4 3/9 miles long. what is the combined length of the two
Delicious77 [7]
The answer is
111/9 miles
or you can say
11 2/9 miles
5 0
3 years ago
NO LINKS!!!
Ber [7]

Refer to this previous solution set

brainly.com/question/26114608

===========================================================

Problem 4

Like the three earlier problems, we'll place the kicker at the origin and have her kick to the right. The two roots in this case are x = 0 and x = 20 to represent when the ball is on the ground.

This leads to the factors x and x-20 and the equation y = ax(x-20)

We'll plug in (x,y) = (10,28) which is the vertex point. The 10 is the midpoint of 0 and 20 mentioned earlier.

Let's solve for 'a'.

y = ax(x-20)\\\\28 = a*10(10-20)\\\\28 = -100a\\\\a = -\frac{28}{100}\\\\a = -\frac{7}{25}\\\\

This then leads us to:

y = ax(x-20)\\\\y = -\frac{7}{25}x(x-20)\\\\y = -\frac{7}{25}x*x-\frac{7}{25}x*(-20)\\\\y = -\frac{7}{25}x^2+\frac{28}{5}x\\\\

The equation is in the form y = ax^2+bx+c with a = -\frac{7}{25}, \ b = \frac{28}{5}, \ c = 0

The graph is below in blue.

===========================================================

Problem 5

The same set up applies as before.

This time we have the roots x = 0 and x = 100 to lead to the factors x and x-100. We have the equation y = ax(x-100)

We'll use the vertex point (50,12) to find 'a'.

y = ax(x-100)\\\\12 = a*50(50-100)\\\\12 = -2500a\\\\a = -\frac{12}{2500}\\\\a = -\frac{3}{625}\\\\

Then we can find the standard form

y = ax(x-100)\\\\y = -\frac{3}{625}x(x-100)\\\\y = -\frac{3}{625}x*x-\frac{3}{625}x*(-100)\\\\y = -\frac{3}{625}x^2+\frac{12}{25}x\\\\

The graph is below in red.

4 0
3 years ago
There are 4 pizzas and 3 people. How much would each person get if each person had the same amount?
julia-pushkina [17]
Each person would have 4/3 of a pizza, or C. 
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3 years ago
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