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1 year ago

Help is much appreciated :)

Mathematics

1 answer:

eimsori [14]1 year ago

7 0

Answer:

Your answer is A

y≤ 1/2x + 3

y≥ 1/2x - 4

Step-by-step explanation:

6.14 Checkpoint: Systems of Linear Inequalities

I took the test

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Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

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3 years ago

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What is the place value of the number 8 in the number 814,295

VLD [36.1K]

The place value is a hundred thousand, as there are 5 digits following the eight.

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3 years ago

Suppose X and Y have joint density f(x,y)=1 for 0

SashulF [63]

∫¹₀ min (1, n/y)dy = ∫ⁿ₀ (1, n/y)dn + ∫¹n min (1, n/y) dy

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3 years ago

What is 35% of 76.6?

aleksandrvk [35]

Answer:

26.6

Step-by-step explanation:

Solution for What is 35 percent of 76:

35 percent *76 =

( 35:100)*76 =

( 35*76):100 =

2660:100 = 26.6

Now we have: 35 percent of 76.6 = 26.6

Therefore, 35% of 76.6 is 26.6

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2 years ago

Wats 200 + 142 Only genius can answer this!!! Lol

attashe74 [19]

Answer:

342

Step-by-step explanation:

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3 years ago

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