3 years ago

I don’t know how to do this math problem

Mathematics

2 answers:

Kruka [31]3 years ago

7 0

Answer: 8

Step-by-step explanation: just do it like this:

1+1+1+1+1+1+1+1

Svetach [21]3 years ago

3 0

Answer:

I'll help

Step-by-step explanation:

No worries man

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Consider the graph of the quadratic function y = 2x2 – 4x + 2.

Ierofanga [76]

Answer:

The function only has one zero.

x = 1 actual coordinate (1, 0) on graph

Step-by-step explanation:

8 0

3 years ago

If a+b=5 and a-b=4 then b^2-a^2 =

Anna007 [38]

Answer:

$a + b = 5 \\ a \: = 5 - b \\ a - b = 4 \\ 5 - b - b = 4 \\ 5 - 2b = 4 \\ 5 - 4 = 2b \\ 1 = 2b \\ \frac{1}{2} = \frac{2b}{2} \\0.5 = b \\ b = 0.5 \\ a = 5 - b \\ = 5 - 0.5 \\ = 4.5 \\ {a \: }^{2} - {b}^{2} = ( {4.5}^{2}) - ( {0.5}^{2} ) \\ = 20.25 - 0.25 \\ = 20 \\ {a}^{2} - {b}^{2} = 20$