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julsineya [31]
3 years ago
15

Can someone please help me .. will mark brainliest !

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
8 0

Answer:

The answer to the the first problem is the second option,

the answer to the second problem is the second option.

Step-by-step explanation:

Rashid [163]3 years ago
5 0
The last one is 5/3x+5
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3 years ago
What is 2,550 divided by 22 as a decimal?
sweet [91]

Answer:

115.909091

Step-by-step explanation:

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3 years ago
What is the area?<br> Please help
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3 years ago
An aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars to make each airplane engine) depends on
butalik [34]

Answer:

90 engines must be made to minimize the unit cost.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

f(x) = ax^{2} + bx + c

It's vertex is the point (x_{v}, y_{v})

In which

x_{v} = -\frac{b}{2a}

y_{v} = -\frac{\Delta}{4a}

Where

\Delta = b^2-4ac

If a>0, the minimum value of the function will happen for x = x_v

C(x)=x²-180x+20,482

This means that a = 1, b = -180, c = 20482

How many engines must be made to minimize the unit cost?

x value of the vertex. So

x_{v} = -\frac{b}{2a} = -\frac{-180}{2(1)} = 90

90 engines must be made to minimize the unit cost.

3 0
3 years ago
Find the slope of the line that passes through (8,10) (1,1)
fomenos

Answer:

9/7

Step-by-step explanation:

slope m= rise/run= (y2-y1) / (x2-x1)

m= 10-1/8-1 = 9/7

5 0
3 years ago
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