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Vitek1552 [10]
3 years ago
9

Please help me on this problem! ​

Mathematics
2 answers:
Ede4ka [16]3 years ago
8 0

Answer:

9

Step-by-step explanation:

Jet001 [13]3 years ago
7 0
8 will be the answer
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The cost of 25 litres of petrol is Rs.1400.Find the cost of 30 litres of petrol.​
Leona [35]
Rs.1680

Liter. Rs
————-|————-
25 | 1400
:5( | ):5
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x6( | )x6
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3 years ago
Consider the graph of the function f(x) = e^x
Aliun [14]

Answer:

The y intercept is positive 1 because that's where the graph crosses the y axis.

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Determine whether the statement is always true, sometimes true, or never true. Give an example. (a) Both sides of an equation ca
arsen [322]

Answer:

(A) Always true

(B) Seldom true

Step-by-step explanation:

(A) Both sides of an equation can be multiplied by the same number without this action changing the solution of the equation.

Keyword here is "number".

Multiplying both sides of an equation by an equal quantity (same number) will result in same solution after solving for the unknown in the equation. This is because that numeric quantity can always be removed by dividing both sides of the equation by it or by a factor (or multiple) of it.

EXAMPLE:

For a linear equation, 4x - 6 = 15x

let's find the solution, in other words solve for the unknown value X.

4x - 15x = 6

-11x = 6

x = -6/11

Now multiply both sides of the equation by 3.

3(4x - 6) = 3(15x)

12x - 18 = 45x   ___new equation

Solve for X

12x - 45x = 18

-33x = 18

x = -18/33

Reduce the fraction to its simplest form by looking for a number that can divide both numerator and denominator without remainder. In other words, think of a number that is a factor of 18 and a factor of 33.

That common factor or highest common factor (HCF) is 3.

Go ahead and reduce the fraction.

x will be reduced to -6/11

(B) Both sides of an inequality can seldom be multiplied by the same number, without such action changing the solution set of the equation.

Inequalities are more complex. Operational signs even change sometimes, in the course of finding the solution set of the inequality.

Sometimes, multiplying both sides of an inequality by a given numeric quantity will change its solution set and sometimes, it won't.

5 0
3 years ago
Expand the expression −11(3c−2d)<br> using the Distributive Property.
Sladkaya [172]

Answer:

-33c+22d

Step-by-step explanation:

=(−11)(3c+−2d)

=(−11)(3c)+(−11)(−2d)

5 0
3 years ago
For the equation y = - 3x + 2 2. determine the value of y when x = 2?
sergejj [24]
Y = -3(2) +22
Y = -6 +22
Y = 16
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3 years ago
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