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3 years ago

Need help ASAP step by step plz 14 points :)

Mathematics

1 answer:

dolphi86 [110]3 years ago

5 0

Answer:

Step-by-step explanation:

it’s just simple multiplication and addition

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Express the area of a rectangle with length 5m^45m 4 5, m, start superscript, 4, end superscript and width 6m^26m 2 6, m, start

Aliun [14]

By definition, the area of a rectangle is given by:

$A = (w) (l)$

Where

l: length of the rectangle

w: width of the rectangle

Therefore, substituting values we have:

$A = (6m ^ 2) (5m ^ 4)$

Rewriting the expression we have:

$A = 30 (m ^ 2) (m ^ 4)$

$A = 30m ^ {2 + 4}$

$A = 30m ^ {6}$

Answer:

The area of the rectangle as monomial is given by:

$A = 30m ^ {6}$

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What are the zeros of the quadratic function f(x) = 2x2 + 8x – 3? x = –2 – StartRoot StartFraction 11 Over 2 EndFraction EndRoot

Phantasy [73]

Answer:

The zeros are

$x=-2+\frac{\sqrt{22}}{2}$

$x=-2-\frac{\sqrt{22}}{2}$

Step-by-step explanation:

we have

$f(x)=2x^{2}+8x-3$

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

Equate the function to zero

$2x^{2} +8x-3=0$

$a=2\\b=8\\c=-3$

substitute in the formula

$x=\frac{-8\pm\sqrt{8^{2}-4(2)(-3)}} {2(2)}$

$x=\frac{-8\pm\sqrt{88}} {4}$

$x=\frac{-8\pm2\sqrt{22}} {4}$

$x=-2\pm\frac{\sqrt{22}}{2}$

therefore

$x=-2+\frac{\sqrt{22}}{2}$

$x=-2-\frac{\sqrt{22}}{2}$

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GuDViN [60]

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What is 65, 124 rounded to the nearest thousand

shtirl [24]

65,000

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krek1111 [17]

Answer:

Hello,

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