Find the discriminantx^2-x+5=0

Mathematics

1 answer:

Feliz [49]3 years ago

6 0

Answer:

Step-by-step explanation:

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can someone pls help me i’m stressed out over this. all you have to do is find the area of the shaded part, thank you sm <3

Serggg [28]

Answer:

88.86

Step-by-step explanation:

Okay, first find the area of the circle (πr^2)

The diameter of the circle is 14, however we need the radius. Simply divide the diameter by two.

$\pi 7^{2}$

3.14*49 =153.86

Next, we find the area of the rectangle (bh)

13*5 =65

Subtract the rectangle from the circle.

153.86-65 =88.86

Hope this helps you :)

5 0

3 years ago

Please help me solve this question im having trouble!!!!!

Marizza181 [45]

Answer:

$To \: express \: this \: as \: an \: equation, \: \\ let \: L \: represents \: \: length \: and \: w \: = \: width\: \\ The \: width \: of rectangle \: is \: 3 \: feet \: less \: than \: \\ 5 \: times \: its \: length. \: This \: tells \: us \: that \: 3 \: \\ will \: be \: subtracted \: from \: 5l. \: So,\\ w \: = 5L \: - \: 3. \: \\ \\ Next \: the \: area \: is \: 14 \: and \: since \: the \: area \: of \: a \: rectangle \: is \\ \: length \times \: width, \: it will \: be \: expressed \: as \: \\ 14 \: = L \times w \: since \: w \: = (5L - 3) \\ 14 = L \times (5L - 3) \\ 14 = 5L {}^{2} - 3L \\ 5L {}^{2} - 3L - 14 = 0 \\ factor \: the \: polynomial \\ (5L + 7)(L - 2) = 0 \\ L = \frac{ - 7}{5} \: or \: 2 \: but \: the \: measurement \: cannot be \: \\ negative \: so \: we \: will \: consider \: 2 \: instead \: \\ \\ L = 2 ft \ \\\\ to \: find \: width \: \\ w \: = \: 5L - 3 \\ w \: = \: 5(2) - 3 \\ w \: = \: 10 - 3 \\ w = > 7 \: feet$