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Semmy [17]
2 years ago
11

Find the product and simplify. (k+ 4)(-4k – 5)

Mathematics
1 answer:
torisob [31]2 years ago
3 0
The answer is -4k^2 - 21k - 20! so sorry if I’m wrong but it’s the answer I got :>
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If x = 4, y = 3, z = -5, then evaluate: z - z + x - y
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3 years ago
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katrin [286]

Answer:

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Step-by-step explanation:

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2 years ago
QUESTION 2. the feasible region shows the number of chairs x and tables y that a furniture company can build each week.
GalinKa [24]

Answer:

Part a) The company can not build 12 chairs and 5 tables

Part b) The company can build 18 chairs and 3 tables

Part c) The company  can build 12,13,14,15,16 or 17 chairs

Step-by-step explanation:

we know that

If a ordered pair is a solution, then the ordered pair must be belong to the feasible region of the graph

Part a) Can the company build 12 chairs and 5 tables?

In this problem we have the ordered pair A(12,5)

Plot  and verify if the point belong to the feasible region of the graph

see the attached figure to better understand the problem

The point A is not on the feasible region

therefore

The company can not build 12 chairs and 5 tables

Part b) Can the company build 18 chairs and 3 tables?

In this problem we have the ordered pair B(18,3)

Plot  and verify if the point belong to the feasible region of the graph

see the attached figure to better understand the problem

The point B is on the feasible region

therefore

The company can build 18 chairs and 3 tables

Part c) One week, the company decides to build 4 tables. how many chairs can the company build?

For y=4

Find the value of x in the graph

The solutions point for y=4 tables are

(12,4), (13,4),(14,4),(15,4),(16,4) and (17,4)

therefore

The company  can build 12,13,14,15,16 or 17 chairs

3 0
3 years ago
How can you estimate 1,506÷2 so that it is close to the actual answer of 753?
Makovka662 [10]
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6 0
3 years ago
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A 50 centimeter piece of wire is bent into a circle. What is the area of this circle?
Korvikt [17]

Answer:

198.95 cm²

Step-by-step explanation:

Circumference = 50cm

C = πD

D = C/π

r = D/2

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Area = π r²

A = π x 7.957747….²

A = 198.95 cm² (2dp)

6 0
3 years ago
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