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GREYUIT [131]
2 years ago
15

I will give you brainliestt if itscorrect

Mathematics
1 answer:
weeeeeb [17]2 years ago
7 0

Answer:

A sorry if im wrong

Step-by-step explanation:

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Is 3/10 equivalent to 2/5 please tell me the right answer
aev [14]
3 divided by 10 is 0.3

2 divided by 5 is 0.4.

They are not equivalent.
8 0
3 years ago
A number, y, is five times another number, x. The sum of the two numbers is 42. Write the system of equations.
vovikov84 [41]

Answer:

5x+x=42

6x=42

x=7

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Find the value of x to the nearest tenth.
Svetach [21]
Cos(angle) = Adjacent Leg /  Hypotenuse

cos(35) = 9 / x

x = 9 / cos(35)

x = 10.99

Rounded to nearest tenth = 11.0
6 0
3 years ago
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The amount of a radioactive isotope decays in half every year the amount of the isotope can be modeled by f(x)=3461/2x and f(1)=
pychu [463]

Answer:

1 represents the number of years passed.

step -by-step explanation:

The amount of a radioactive isotope decays in half every year. The amount of the isotope can be modeled by f(x) = 346 (1/2)x and f(1) = 173

Here 1 represents the number of years that passed.

So 1 represents the number of years.

Hope this will helpful.

Thank you.

4 0
3 years ago
If in triangle ABC, a=5, b=6 and c=8, then cos A is...
s2008m [1.1K]

In a triangle, the nomenclature is that a variable side a is opposite of the angle A. we can use the cosine law to determine the value of cosine A. 
a2 = b2 + c2 -2bc cos a25 = 36 + 64 - 2*6*8 * cos acos a = 25/32 
5 0
3 years ago
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