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Irina18 [472]
3 years ago
7

What is the solution for the following equation? 3(a-7)=14-4a​

Mathematics
1 answer:
prohojiy [21]3 years ago
5 0

Answer:

a= 5

Step-by-step explanation:

3 (a-7)= 14-4a -Remove Parentheses

3a-21=14-4a -Move the terms

3a+4a=14+21 -Collect like terms

7a=35 -Divide both sides

a=5 - Solution

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gayaneshka [121]
Firstly triangle OAB is equilateral so R = AB =OA = 8 in

MES (ARC AB) = R x Ф (in Radian). Note that 60° =π/3


MES (ARC AB) = 8 x π/3 (D)
8 0
4 years ago
After each charging, a battery is able to hold only 97% of the charge from the previous charging. The battery was used for 18 ho
Cerrena [4.2K]

Answer:

The total nuber of hours that the battery can be used over its lifetime is 600.

Step-by-step explanation:

We use an infinite geometric series to solve this question.

The sum of all values of an infinite geometric series is given by the following equation:

S = \frac{a_{1}}{1 - r}

In which a_{1} is the first term and r is the common ratio.

After each charging, a battery is able to hold only 97% of the charge from the previous charging.

This means that r = 0.97

The battery was used for 18 hours on its first charge before it had to be recharged.

This means that a_{1} = 18

What is the total number of hours the battery can be used over its lifetime?

S = \frac{18}{1 - 0.97} = 600

The total nuber of hours that the battery can be used over its lifetime is 600.

7 0
4 years ago
The answer to the photo
MissTica

Answer: p+(q÷r) this is because you divide a and r and add p to it

8 0
3 years ago
Read 2 more answers
I need to know what number 9 is I don’t understand it
Taya2010 [7]

The answer is (6/25). I just multiplied the 2 numbers, but I'll explain with something simpler:

Take the number 100, let's say I want (1/10) from that 100,

and from that (1/10), I want (4/5).

Well a tenth of 100 is 10, and four fifths of 10 is 8, thus we have 8/100 as a total (or 4/50)

The same answer can be found when multiplying (1/10) and (4/5), giving us (4/50) or (8/100)

7 0
3 years ago
Pls help pls ill give u a braniest if you help me
alexandr1967 [171]

Answer:

B

Step-by-step explanation:

y = (x + 1)/x

xy = x + 1

xy - x = 1

x(y - 1) = 1

x = 1/(y - 1)

Interswitch variables

f^-1(x) = 1/(x - 1)

4 0
4 years ago
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