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Romashka [77]
3 years ago
13

Simplify please ......

Mathematics
2 answers:
Klio2033 [76]3 years ago
6 0

Answer:

Simplifying

5x + 5x = 10x

Combine like terms: 5x + 5x = 10x

10x = 10x

Add '-10x' to each side of the equation.

10x + -10x = 10x + -10x

Combine like terms: 10x + -10x = 0

0 = 10x + -10x

Combine like terms: 10x + -10x = 0

0 = 0

Step-by-step explanation:

Colt1911 [192]3 years ago
5 0

Answer: 5x+5x=10x²

10x=10x²

10x²+ -10x²=0

10x+-10x²=0

10x(1+ -1x)=0

ignore the factor 10

Step-by-step explanation:

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The amount, A, in milligrams, of radioactive material remaining in a container can be modeled by the exponential function A(t) =
lisov135 [29]

Answer: 4 years


Step-by-step explanation:

A(0) has to be amount at start. Assume that's 5mg

Then A(t) = 5×(0.5)^(0.25t) = 5×2^(-t/4),

(also known as 5 exp(-λ t) with λ = ln(2)/4, incidentally).


We need to such that A(t) = 2.5mg, or 2^(-t/4) is 1/2, which happens when -t/4 is -1, or t is 4.



4 0
3 years ago
A semicircular archway is built in front of a garden using 8 congruent granite tiles, as shown in the diagram. Find the area of
iris [78.8K]
Given: 
8 tiles
radius from the center of the archway to the inner edge of the tile. 7 ft.
radius from the center of the archway to the outer edge of the tile. 8 ft = 7 ft + 1 ft.

Area of a semi circle = π r² / 2 
A = (3.14 * (7ft)²) / 2 = (3.14 * 49ft²) / 2 = 153.86 ft² / 2 = 76.93 ft²
A = (3.14 * (8ft)²) / 2 = (3.14 * 64ft²) / 2 = 200.96 ft² / 2 = 100.48 ft²

100.48 ft² - 76.93 ft² = 23.55 ft²
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3 0
3 years ago
20 points and Brainliest !
soldier1979 [14.2K]

Answer:

y = -5/6x + 6

Step-by-step explanation:

Slope intercept form is: y = mx + b

- where m is the slope

- where b is the y-intercept.

The problem already gives you the slope and y-intercept, so all you have to do is put it in for m and b respectively. Therefore, we have:

y = -5/6x + 6

3 0
3 years ago
Read 2 more answers
What is this please help
sweet-ann [11.9K]

Answer:

Absolute value means how far are you from zero on the number line.

absolute value of | -18| for example is 18  

this means that you are at -18 on the number line that is 18 points away from zero.

and absolute value of |18 | is 18

this means that you are at point 18 on the positive direction on the number line. That is 18 points away from zero.

Step-by-step explanation:

4 0
2 years ago
7-3 x -2 / 5 + (-3)^3 using order of operations
Scrat [10]
Decimal form: 18.8
Mixed number: -18 4/5
Exact form: -94/5
6 0
3 years ago
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