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Darya [45]
2 years ago
8

Evaluate the algebraic expression 2a+8 a=3

Mathematics
2 answers:
Eddi Din [679]2 years ago
6 0

Answer:

14

Step-by-step explanation: 2x3=6+8=14

ZanzabumX [31]2 years ago
5 0

Answer:

2(3)+8

6+8

14

hope this helps

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Find the percent of decrease from 340 to 160. Round to the nearest tenth of a
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Answer: D is correct, 52.9%

Step-by-step explanation:

% decrease from 340 to 160, Where 340 is the old number and 160 is the new number

Percent change = (New number - Old number) / Old number x 100%

Percent change

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= (-180) / 340x 100 = -52.94%

I hope this is clear, please mark as brainliest answer.

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3 years ago
A container of oregano is 17 pounds heavier than a container of peppercorns their total weight is 253 pounds the peppercorns wil
34kurt
Alright, we can turn the word problem at the beginning into an equation.
Let's represent oregano with "o" and peppercorns as "p".
o=p+17
Also, we know that the two added together are 253 pounds.
o+p=253
Since we know that o=p+17, let's substitute it into the second equation.
(p+17)+p=253
2p+17=253
-17       -17
2p=236
p=118
So, we have 118 pounds of peppercorns. (Although it's irrelevant to the second half of the equation, we also know we have 135 pounds of oregano)
Now, let's convert pounds to ounces.
1 pound = 16 ounces.
So, multiply 118 by 16....
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Please help me!!!!!!!!!
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Step-by-step explanation:

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A line and a circle intersect at the points A and B. Use the equations below to find the coordinates of the points of intersecti
Margaret [11]

Answer:

<h2>A(-2, 2) and B(6, 10)</h2>

Step-by-step explanation:

Given the equation of a line y = x + 4 and equation of a circle as

( x − 3 )² + ( y − 5 )² = 34, if the line and the circle intersect at points A and B, to get this points, we will substitute the equation of the line into that of the circle as shown;

We will have to expand the equation of the circle first before making the substitute.

( x − 3 )² + ( y − 5 )² = 34

x²-6x+9+y²-10y+25 = 34

x²+y²-6x+-10y+34-34 = 0

x²+y²-6x+-10y = 0

Substituting y = x+ 4 into the resulting expression;

x²+(x+4)²-6x+-10y = 0

x²+x²+8x+16-6x+-10(x+4) = 0

x²+x²+8x+16-6x+-10x-40 = 0

2x²-8x-24 = 0

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x(x-6)+2(x-6) = 0

x+2 = 0 and x-6 = 0

x = -2 and 6

when x = -2;

y = -2+4

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when x = 6

y = 6+4

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The coordinates of the point of intersection are A(-2, 2) and B(6, 10).

4 0
3 years ago
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