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Zarrin [17]
3 years ago
11

2 What is the value of a in the equation 5a - 10b = 45, when b = 3? 3 15 21 39

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0

Answer:

Q1 is 15

Q2 is 39

Q3 is 51

Q4 is 87

Step-by-step explanation:

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Step-by-step explanation:

x > -1

x = {0,1,2,...}

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2 years ago
Write an expression so that when u divided 1/4 by a number the answer will be larger
Viktor [21]
20x1/4=5
Think thats what you mean
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Sorry u can’t rlly see it but it’s rlly late and it’s due in an hour
Mrac [35]

Answer:

If you subtract $44, 090 from $68, 450 you'll get $24, 360, so thats how much more she'll earn with a bachelor's degree.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How to solve these question?
mart [117]
3.) An extreme value refers to a point on the graph that is possibly a maximum or minimum. At these points, the instantaneous rate of change (slope) of the  graph is 0 because the line tangent to the point is horizontal. We can find the rate of change  by taking the derivative of the function.

y' = 2ax + b

Now that we where the derivative, we can set it equal to 0.

2ax + b = 0

We also know that at the extreme value, x = -1/2. We can plug that in as well.

2a (-\frac{1}{2} ) + b = 0

The 2 and one-half cancel each other out.

-a + b = 0

a = b

Now we know that a and b are the same number, and that ax^2 + bx + 10 = 0 at x = -1/2. So let's plug -1/2 in for x in the original function, and solve for a/b.

a(-0.5)^2 + a(-0.5) + 10 = 0

0.25a - 0.5a + 10 = 0

-0.25a = -10

a = 40

b = 40

To determine if the extrema is a minima or maxima, we need to go back to the derivative and plug in a/b.

80x + 40

Our critical number is x = -1/2. We need to plug a number that is less than -1/2  and a number that is greater than -1/2 into the derivative.

LESS THAN:
80(-1) + 40 =  -40

GREATER THAN:
80(0) + 40 = 40

The rate of change of the graph changes from negative  to positive at x = -1/2, therefore the extreme value is a minimum.

4.) If the quadratic function is symmetrical about x = 3, that means that the minimum or maximum must be at x = 3.

y' = 2ax + 1

2a(3) + 1 = 0

6a = -1

a = -1/6

So now plug the a value and x=3 into the original function to find the extreme value.

(-1/6)(3)^2 + 3 + 3 = 4.5

The extreme value is 4.5


7 0
3 years ago
Square RSTU is translated to form R'S'T'U', which has vertices R'(–8, 1), S'(–4, 1), T'(–4, –3), and U'(–8, –3). If point S has
Zarrin [17]

Answer:

C. (-1, -6)

Step-by-step explanation:

Hope this helps :)

7 0
2 years ago
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