If the ordered pair (a, b) satisfies the inequality. y > x-4, three of these statements are

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

3 0

Number one jjnhhhnnbbb=20

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marissa [1.9K]

$\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Quadrilaterals.

Basically we know that, the sum of opposite angles of a quadrilateral inscribed in a circle is always 180°.

so applying this law here, we get as,

2X + (3X-10) = 180°

=> 5X - 10° = 180°

=> 5X = 190°

=> X = 190°/5

=> X = 38°

thus the angle X= 38°.

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Find the diffrence (7x2 + x + 9) - (3x2 + 4x - 5)

mars1129 [50]

(7x2+x+9)-(3x2+4x-5)

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4 years ago

I have no idea what to do. PLS HELP

Zarrin [17]

Answer:

$\textbf{Option C}\\$

Step-by-step explanation:

$\textup{You have to substitute values of x from the table and see if it satisfies the given condition.}\\\textup{For example in option A, $(-2,-2)$ is the point given.}\\\textup{Substitute $x = -2 $ in $y = -x^2 + 3x $}\\\textup{We get $y = -10 \ne -2$. Eliminate option $A$ and $B$ from this.}\\$

$\textup{Now we will check for $x = 1$ as the values of $y$ differ in options $C$ and $D$.}\\$i.e., $ \textup{For} $x = 1, y = - {1}^2 + 3(1) $\\$\implies y = 2 \ne 4$, \textup{eliminating Option $D$.}\\\textup{Also substitute other values for $x = -1, 0, 2$ and the answer can be verified.}\\\textup{\textbf{Hence, option $C$ will fit this function.}}$

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In a geometric sequence, the seventh term exceeds the fifth term by 1,920. Find the sum of

uranmaximum [27]

That's geometric sequence

T7 = T5*r^2 = T5+1920
r = 2, so

4*T5 = T5 + 1920
3T5 = 1920
T5 = 640

640 = 2^4 * 40

So, a=40 and the sequence is

40 80 160 320 640 1280 2560 5120 10240 20480 40960 ...

Note that 2560 = 640 + 1920

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3 years ago

What is the length of a square room with an area of 96.9?

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The area of a square can be found by A=l•w. Since it's a square all sides are equal so just take the area and divide it by 2. Your answer is 48.45. Hope this helped!

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