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3 years ago

PLEASE ANSWER FAST...WILL MARK BRAINLIEST IF ANSWERED NOW. 20POINTS

Mathematics

2 answers:

Setler [38]3 years ago

6 0

(4)(y^2+4y-21)=0

BY MIDDLE TERM SPLITTING

(4){y^2+(7y-3y)-21}=0

(4)(y^2+7y-3y-21)=0

(4){(y^2+7y)-(3y+21)}=0

(4){y(y+7)-3(y+7)}=0

(4)(y-3)(y+7)=0

HOPE THIS WILL HELP U

Otrada [13]3 years ago

5 0

they all multiple by 4 like y 2/4+ 4y- 21

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3 years ago

Describe the transformation that takes f(x)=x+1 to g(x) = -x+4. Will Mark Brainliest.

lions [1.4K]

Answer:

Reflection across y axis

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Step-by-step explanation:

Given

$f(x) = x + 1$

$g(x) = -x + 4$

Required

Describe the transformation from f(x) to g(x)

First, take a reflection of f(x) across the y axis.

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Next, translate f(-x) up by 3 units to give g(x)

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3 years ago

Special right triangles, find x and y

egoroff_w [7]

Answer:

The answer to your question is x = 17.32; y = 8.67

Step-by-step explanation:

Process

1.- Use trigonometric functions to find x and y

a) sin Ф = $\frac{opposite side}{hypotenuse}$

Ф = 60°

opposite side = 15

hypotenuse = ?

$hypotenuse = \frac{opposite side}{sin \alpha }$

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$hypotenuse = \frac{15}{0.87}$

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b) cosФ = $\frac{y}{hypotenuse}$

$y = hypotenuse x cos 60$

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3 years ago