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3 years ago

Help Not sure .. does anyone have a clue ?

Mathematics

2 answers:

denis23 [38]3 years ago

5 0

Answer:

Step-by-step explanation:

f(x)=2(x+4)(x-1)

=(2x+8)(x-1)

=2x²+6x-8

OLga [1]3 years ago

5 0

Answer:

B. f(x) = 2(x + 4) (x - 1)

and

F. f(x) = 2(x + 1.5)²- 12.5

Step-by-step explanation:

look at the pictures

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A quadrilateral has two angles that measure 222° and 81°. The other two angles are in a ratio of 6:13. What are the measures of

hram777 [196]

$\sf\huge\underline{\star Solution:-}$

$\rightarrow$ <u>Ratio of two angles are 6:13.</u>

So, let the one angle be $\sf{6x}$ and another be $\sf{13x.}$

As we know that,

Sum of all interior angles of a quadrilateral = $\sf\pink{360°.}$

So let's sum up the given angles,

$\rightarrow$ $\sf{222°+81°+6x+13x \:=\: 360°}$

$\rightarrow$ $\sf{303+19x \:=\: 360°}$

$\rightarrow$ $\sf{19x \:=\: 360-303}$

$\rightarrow$ $\sf{19x \:=\: 57}$

$\rightarrow$ $\sf{x \:=\: \frac{19}{57}}$

$\rightarrow$ $\sf{x \:=\: 3}$

Hence, $\sf{x \:=\: 3}$

So, First angle $\sf{= \:6x\: = \:6×3 \:=}$ $\sf\purple{18°.}$

Second angle $\sf{= \:13x\: = \:13×3 \:=}$ $\sf\purple{39°.}$

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Hope it helps you:)

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Find the slope of a line perpendicular to 2x + y = -8

Naily [24]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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ABCD, EFGH, and HIJK are squares.

Ad libitum [116K]

Answer:

40/3 cm

Step-by-step explanation:

FE : DC

1 : 3

Since area ABCD = 400

s² = 400

s = 20

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AM = DC - FE

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3 years ago