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3 years ago

Can you please give me the answer

Mathematics

2 answers:

ladessa [460]3 years ago

7 0

Answer:

Your answer should be B. x + -1 +- √17

Step-by-step explanation:

Artemon [7]3 years ago

3 0

Answer:

Step-by-step explanation:

Given

x² + 2x + 1 = 17

Note that the quadratic on the left side is a perfect square, that is

(x + 1)² = 17 ( take the square root of both sides )

x + 1 = ± $\sqrt{17}$ ( subtract 1 from both sides )

x = - 1 ± $\sqrt{17}$ → B

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2√5 (√3+3√5 ) Simplify step by step

nataly862011 [7]

2√5(√3+3√5) (1.73+3+2.23)= (6.96) 2√5= 4.23 4.23(6.96)= 29.44

5 0

3 years ago

The price of a sweater was slashed from $ 960 to $ 816 , which means the sweater was marked down $144, by a shopkeeper in the wi

IRINA_888 [86]

15% or 16%. Hope this helps! =)

3 0

4 years ago

The equation of a line with a slope of 2 and passing through the point (-5,3) written in slope point form

joja [24]

y=ax+b

a=2

3=2*(-5)+b

thenb=13

y=2x+13

4 0

3 years ago

Read 2 more answers

Solve the equation (0°≤A≤360°)<br>a) √3sinA-cosA=√2

Blizzard [7]

Step-by-step explanation:

√3sinA-cosA=√2

dividing both side by (√3²-1²=2 we get)

√3/2 sinA-1/2.cos A=√2/2

cos 30sinA-sin30cosA=√2/(√2×√2)

sinAcos30-cosAsin30=1/√2

sin(A-30)=sin45,sin(180-45)

therefore

A-30=45,135

A=45+30=75 or A=135+30=165

6 0

3 years ago

Q4: Write the equation in slope-intercept form of the line that is perpendicular to

forsale [732]

Answer:

5y = x + 11

Step-by-step explanation:

Given parameters:

Equation of the line ;

y = -5x + 1

Coordinates = (2, -1)

Find the equation of a line perpendicular;

Solution:

A line perpendicular to y = -5x + 1 will have slope that is a negative inverse of the given one.

Equation of a straight line is expressed as;

y = mx + c

y and x are the coordinates

m is the slope

c is the y-intercept

So, the slope of the new line perpendicular is $\frac{1}{5}$ ;

Now let us find the y-intercept of the new line;

x = -1 and y = 2

2 = $\frac{1}{5}$ x (-1) + c

c = 2 + $\frac{1}{5}$ = $\frac{11}{5}$

The equation of the new line is;

y = $\frac{1}{5}$ x + $\frac{11}{5}$

or multiply through by 5;

5y = x + 11

5 0

3 years ago