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3 years ago

Need help answering this question

Mathematics

2 answers:

sweet [91]3 years ago

7 0

Answer:

x=13

Step-by-step explanation:

$g(x)=-4\\$

Therefore, substituting the value in the equation

$g(x)=\sqrt{x+3} -8\\=>-4=\sqrt{x+3}-8\\ =>-4+8=\sqrt{x+3} \\=>4=\sqrt{x+3}\\$

Squaring both sides,

$=>4^{2}=\sqrt{(x+3)} ^{2}\\=>16=x+3 \\=> x=16-3\\\\=>x=13$

Lelechka [254]3 years ago

7 0

Answer:x=13

Step-by-step explanation:

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Plz, Help Me!!!<br> Which graph represents the equation (x + 4)^2 + (y + 5)^2 = 36?

Nezavi [6.7K]

Answer:

Step-by-step explanation:

the center of the circle is at (-4. -5) with a radius of 6

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3 years ago

Give three points that lie on a line with a<br>slope of -2/5

Luda [366]

Answer:

The three points that lie on a line y = -2/5x with a slope -2/5 will be:

(0, 0)

(5, -2)

(10, -4)

Please check the attached graph also.

Step-by-step explanation:

We know that the slope-intercept form of the line equation is

$y = mx+b$

where m is the slope and b is the y-intercept

Given

slope = m = -2/5

We suppose the line passes through the origin.

so b = 0

substituting m = -2/5 and b = 0 in the slope-intercept form

$y = mx+b$

y = -2/5x + 0

y = -2/5x

Thus, the equation of line with the slope m = -2/5 and passes through the origin (0, 0) will be:

y = -2/5x

As the equation of line passes through (0, 0), thus the point (0, 0) lies on the line.

Putting x = 0 in the equation y = -2/5x

y = -2/5 × (0)

y = 0

Thus, (0, 0) is the point which also passes through the line

Putting x = 5 in the equation y = -2/5x

y = -2/5 × 5

y = -2

Thus, (5, -2) is the point which also passes through the line

Now, putting x = 10 in the equation y = -2/5x

y = -2/5 × 10

y = -4

Thus, (10, -4) is the point which also passes through the line.

Thus, the three points that lie on a line y = -2/5x with a slope -2/5 will be:

(0, 0)

(5, -2)

(10, -4)

Please check the attached graph also.

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3 years ago

The red graph (1) is the graph of f(x) = log(x). Describe the transformation of the blue function (2) and write the equation of

Nataly_w [17]

Answer:

first of all, the graphs are so poorly plotted,even kn computer...

anyways,

since the blue one ending at x=5 on the x axis,

while actual log ends at x=0 this means

X=x-5

and since, log1=0 but it's 5 in blue graph,

the graph is moved up by 5

hence,

y=5+log(x-5)

8 0

4 years ago

Simplify 4y-8y^2+9y-7y^2

LUCKY_DIMON [66]

Answer: D) 13y+15y^2

Step-by-step explanation:

(4y+9y)+(-8y^2-7y^2)=13y-15y^2

4 0

3 years ago

Read 2 more answers

I need help with 2 plz help

Tatiana [17]

Answer:

a=31.61

Step-by-step explanation:

Pythagorean theorem states that square hypotenuse side is equal to square opposite side plus square adjacent side

Hyp²= Opp²+Adj²

the opposite is represented by a in the question, so

60²=a²+51²

3600=a²+2601

combine the like terms

3600-2601=a²

999=a²

a²=999

square root both sides to remove the square

√a²=√999 {square cancels the square root

a=√999

a=31.606

a=31.61 approximately

7 0

3 years ago