Which point could be removed in order to make the relation a function?

Mathematics

1 answer:

vitfil [10]3 years ago

4 0

Step-by-step explanation:

-4,5is the correct answer

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What is 52cm as a fraction of 90cm? (as a simplified fraction)

katrin2010 [14]

Answer:

$\frac{26}{45}$ and $\frac{3}{11}$

Step-by-step explanation:

(a)

Expressing as a fraction

$\frac{52}{90}$ ( divide numerator/ denominator by 2 )

= $\frac{26}{45}$ ← in simplest form

(b)

Expressing as a fraction

$\frac{30}{110}$ ( divide numerator/ denominator by 10 )

= $\frac{3}{11}$ ← in simplest form

5 0

3 years ago

100 PTS!! PLEASE HELP! OVER DUE

Reika [66]

Answer:

$-\frac{1}{2} \vec {c}$

Step-by-step explanation:

Look at the component form of each vector.

Note that vector c is <4,4> and vector d is <-2,-2>

If one imagined the line that contained each vector, the line for both would have a slope of 1, because $\frac{4}{4}=1=\frac{-2}{-2}$

Since they have the same slope they are parallel, but since they are in opposite directions, we often call them "anti-parallel" (simply meaning parallel, but in opposite directions).

If two vectors are parallel, one vector can be multiplied by a scalar to result in the other vector. This means that there is some number "k", such that $k \vec{c} = \vec {d}$ , or equivalently, $kc_x=d_x$ and $kc_y=d_y$ .