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miskamm [114]
3 years ago
15

What is the answer to this question x²-8x+16=0

Mathematics
1 answer:
vovangra [49]3 years ago
5 0
(x+4)(x-4) =0

x +4 = 0
x      = -4

x - 4 =0
x  = 4

answers , x = -4 and x=4
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There are 20 students in my class. Each student needs: .2 cups, 2 plates, 1 party hat and a pair of earphones. My teacher has 2
garik1379 [7]

Answer:

Simple, no. This would not be enough.

Step-by-step explanation:

This is because you mentioned that there are 20 students and each of them needed 2 plates. So, there would need to be at least 40 plates. Forks seem irrelevant in this question but if the teacher has 8 plates in 1 box and another 8 in the second box, that would sum up to 16 plates that are available. And the fact that the box doesn't even include the other items, should hint the lack of items available for the students.

This question seemed worded differently. But tried my best. :)

8 0
3 years ago
1. Graph the function y= 2/x. Draw a chart to show at least four ordered pairs that are on the graph.
blsea [12.9K]
Y = 2/x

x must not have the value of 0 because x is used as a denominator. 
A denominator must not have a value of 0 because the overall value of the fraction is undefined.

x may be any positive or negative integer.

x = 1
y = 2/1 = 2 ⇒ (1,2)

x = 2
y = 2/2 = 1 ⇒ (2,1)

x = 3
y = 2/3 = 0.67 ⇒ (3, 2/3)

x = -1 
y = 2/-1 = -2 ⇒ (-1,-2)

x = -2
y = 2/-2 = -1 ⇒ (-2, -1)

x = -3 
y = 2/-3 or -0.67 ⇒ (-3, -2/3)



7 0
3 years ago
Can somebody please help me with 1 and 2 and explain why that’s the answer thanks
Masteriza [31]

Answer:

1) A

2) C

Step-by-step explanation:

The range is all real y values, in this case it includes zero and continues going downward towards negative infinity.

The domain is all real x values. In this case it includes zero and continues increasing to positive infinity.

Hope this helps!

5 0
3 years ago
The surface area of a cube is represented by the expression below, where s is the side length of the cube. Find the surface area
Firlakuza [10]

Answer:

<u>The correct answer is A. 600 square centimetres</u>

Step-by-step explanation:

Let's recall that the formula of the surface area of a cube is:

A = 6s², where s  is the side length of the cube.

Replacing with the value we know, we have:

A = 6 * 10²

A = 6 * 100

A = 600 square centimetres

<u>The correct answer is A. 600 square centimetres</u>

7 0
3 years ago
What inverse operation is used to solve the equation? x + 2 = 5
bezimeni [28]

Answer: subtraction

Step-by-step explanation:

x + 2 = 5

5 - 2 = x

x = 3

4 0
4 years ago
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